Difference between pages "IS-3" and "F-89D"

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{{Specs-Card|code=ussr_is_3}}
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{{Specs-Card|code=f-89d}}
 +
{{About
 +
| about = American jet fighter '''{{PAGENAME}}'''
 +
| usage = other version
 +
| link = F-89B
 +
}}
  
 
== Description ==
 
== Description ==
−
<!--In the description, the first part should be about the history of the creation and combat usage of the vehicle, as well as its key features. In the second part, tell the reader about the ground vehicle in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.-->
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<!-- ''In the description, the first part should be about the history of and the creation and combat usage of the aircraft, as well as its key features. In the second part, tell the reader about the aircraft in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
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[[File:GarageImage_IS-3.jpg|420px|thumb|left]]
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[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]]
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{{break}}
+
{{Break}}
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The '''{{Specs|name}}''' is a rank {{Specs|rank}} Soviet heavy tank {{Battle-rating}}. It was introduced during the closed beta testing for Ground Forces before [[Update 1.41]]. The IS-3 keeps the same [[D-25T (122 mm)|D-25T]] gun as its predecessor while ''drastically'' upgrading its armour without hindering mobility too much.
+
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} American jet fighter {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]].
  
−
Anyone familiar with the [[IS-2]] and [[IS-2 (1944)]] will sit comfortably behind the driver's controls of this behemoth.
+
The {{PAGENAME}} Scorpion was designed and built to be an all-weather interceptor intended to neutralize any potential invading Soviet bomber force. The USAAF was intent of replacing the P-61 Black Widow with another night fighter, one specifically which would fly faster (minimum 530 mph/850 kph) almost assuredly requiring the usage of jets, six sixty-calibre machine guns or 20 mm autocannons and armed with internally stored aerial rockets. To round out the aircraft for ground attack if needed, it would also need to accommodate 1,000 lb bombs and eight larger rocket types externally. Initial wind tunnel testing of the fighter determined that the proposed swept-wings were insufficient at slow speeds and were changed out with straight wings. Though causing a loss of high-end performance, increased stability at low speeds was necessary.
  
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As with previous IS models, the IS-3 sports the same D-25T 122mm cannon, with its awesome destructive potential. Experienced tankers will know which weak points to look for on most targets, although the weapon's effectiveness increases dramatically once the BR-417D ammunition is researched, upgrading its penetration from 207mm to 230mm while retaining most of the HE filler. At 7.3 BR, the IS-3 will come up against many other heavy tanks with large, slow reloading guns, making the playing field much more even. Despite this, always beware the faster, lightly armoured targets such as the [[Ru 251]], [[Leopard I]], and other vehicles that can essentially ignore the IS-3's armour like the [[FV4005|FV4005]]. As with the IS-2 mod. 1944, the IS-3 has a spindle-mounted Heavy Machine Gun, good for warding off strafing aircraft or deterring light vehicles.
+
Other changes to the horizontal stabilizer also increased the effectiveness of the elevators and rudder. Concerns about the fuel tanks situated right over the engines were nullified when it was determined that efforts made by Northrop to protect them were considered sufficient, anything else would have required a complete redesign of the aircraft.
  
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The IS-3 once again demonstrates sub-par maneuverability, despite being relatively light for a heavy tank. It has an engine that produces a measly 671 horsepower, making the vehicle feel sluggish when attempting to initiate a turn from both standstills and when moving. Its' acceleration also leaves much to be desired, however, it does have a reasonably high top speed, and usually will reach it eventually regardless of the surface it is driving on. Fortunately, as with all late Soviet heavy tanks, the reverse speed of the IS-3 is very respectable, often allowing it the time necessary to back out of bad situations to reload or repair. The reverse gears and low forward gears allow the vehicle to climb surprisingly sharp slopes, despite what some might expect from such a large vehicle.
+
Other key features of the Scorpion was the usage of decelerons or clamshell-style split ailerons which work as a standard aileron, however, can open up as a dive brake or be utilized as a takeoff/landing flap. Last-minute changes by the Air Force required upgrading the engines and outfitting an afterburner, adding a radar system, fire control system, permanent wingtip fuel tanks, reconfigured nose guns and easy access to lower the entire engine to make for easier maintenance.
  
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The most obvious changes over the previous IS tanks are of course the redesigned turret and the sharply angled 'pike' nose. The front is not only angled, but the armour is also relatively thick, with 110mm on both the top and bottom, angled at 54°-56° and 54° respectively. As with previous designs, the IS-3 has somewhat sub-par side and rear armour, and angling should be avoided. The redesigned turret is much more resilient than the older designs, with more angling, a much smaller flat area around the mantlet, and significantly thicker casting. The tank is somewhat vulnerable to trap shots and turret ring penetration - these can be somewhat negated by depressing the gun and blocking the vulnerable areas.
+
Having determined that the six autocannons originally specced with the F-89A and B models would be less effective against bomber formations as it requires relative precision to damage or destroy the enemy bombers. On the other hand, a new requirement for the F-89 to house 104 Folding-Fin Mighty Mouse Aerial Rockets and underwing HVAR rockets would allow the F-89 (now designated as the {{PAGENAME}}) the ability to launch salvos of rockets and quickly targeting another bomber to launch more and allow for the potential of one or more rockets in the salvo to accomplish the required amount of damage necessary to destroy them or cause them to turn around and retreat. Though unguided and not terribly accurate, a salvo of rockets typically allowed for one or two rockets to explode near enough to be a successful hit.
  
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The IS-3 is the definition of a 'breakthrough' tank, which excels at close-range, front-on conflict where the chances of flanking are minimal and drivers can take advantage of the heavy frontal armour and reverse speed. When up-tiered, or against certain enemies with HEAT, HESH or ATGMs, IS-3 drivers should play cautiously as the tank is extremely vulnerable to high-penetration and chemical rounds.
+
To aid in the aerodynamics of the rocket launchers, they were outfitted around the wing-tip fuel tanks. Engineered so that the launching rockets would not damage the fuel tanks, the underwing still allowed for the mounting of the larger HVAR rockets to be used against bombers, but also along with the FFAR rockets be used against ground targets. The {{PAGENAME}} though best used with higher speeds, can be used as a dive-bomber of sorts, when going against ground targets, the fighter should throttle back, extend dive brakes, line up the shot and fire the rockets. Immediately when finished firing, retract the brakes and full-throttle the engines to gain speed and distance from any enemy fighters which may have targeted you.
  
 
== General info ==
 
== General info ==
−
=== Survivability and armour ===
+
=== Flight performance ===
−
<!--Describe armour protection. Note the most well protected and key weak areas. Appreciate the layout of modules as well as the number and location of crew members. Is the level of armour protection sufficient, is the placement of modules helpful for survival in combat?
+
<!-- ''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.'' -->
−
 
+
The {{PAGENAME}} has probably the best acceleration for its BR, but mediocre turn rate and rolling. It locks up around 900 km/h. The plane can reach rip speeds in level flight and even shallow climbs.
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If necessary use a visual template to indicate the most secure and weak zones of the armour.-->
 
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'''Armour type:'''
 
  
−
* Rolled homogeneous armour (Hull, Turret roof)
+
Considering its mediocre turn rate & rolling speed, it's best used as a boom & zoomer.
−
* Cast homogeneous armour (Turret)
 
  
−
{| class="wikitable"
+
{| class="wikitable" style="text-align:center" width="70%"
 +
! rowspan="2" | Characteristics
 +
! colspan="2" | Max Speed<br>(km/h at 3,200 m)
 +
! rowspan="2" | Max altitude<br>(metres)
 +
! colspan="2" | Turn time<br>(seconds)
 +
! colspan="2" | Rate of climb<br>(metres/second)
 +
! rowspan="2" | Take-off run<br>(metres)
 
|-
 
|-
−
! Armour !! Front !! Sides !! Rear !! Roof
+
! AB !! RB !! AB !! RB !! AB !! RB
 
|-
 
|-
−
| Hull || 110 mm (54-56°) ''Front glacis'' <br> 110 mm (54°) ''Lower glacis'' || 90 mm (0-40°) ''Top'' <br> 20 mm (60°) ''Bottom'' || 60 mm (47°) ''Top'' <br> 60 mm (41-42°) ''Bottom'' || 20 mm
+
! Stock
 +
| 1,009 || 1,002 || rowspan="2" | {{Specs|ceiling}} || 33.3 || 34.8 || 31.1 || 26.7 || rowspan="2" | 1,036
 
|-
 
|-
−
| Turret || 250 mm (1-78°) ''Turret front'' <br> 100 + 250 mm (9-79°) ''Gun mantlet''|| 75-220 mm (33-69°) || 70-120 mm (22-52°) || 20 mm ''Front, Hatch roof'' <br> 40 mm ''Center'' <br> 75 mm ''Sides''
+
! Upgraded
 +
| 1,034 || 1,022 || 32.7 || 33.0 || 47.5 || 38.9
 
|-
 
|-
 
|}
 
|}
−
'''Notes:'''
 
−
 
−
* Suspension wheels are 20 mm thick while tracks are 30 mm thick.
 
−
* The thickest armour of the tank is at the front – the "beak" at the front of the hull raises the effective thickness of the armour from 110 to around 180 – 200 mm, depending on the exact spot.
 
−
* The turret front of the IS-3 is an also fairly well armoured, with 250 mm of heavily sloped armour equating to around 400 mm effective thickness.
 
−
* Turret side armour is not equal throughout its length. In the side middle, it is 130 mm, then bordering the rear armour is 150 mm thick.
 
−
* Gun mantlet side and bottom are boosted by the 250 mm of the turret front, whereas the top of gun mantlet has no armour behind it.
 
−
* Side armour of the hull has an additional 5 mm of sheet metal on above the suspension area.
 
−
* Turret ring is 200mm thick with a 20mm "collar" covering the front and sides.
 
−
* Upper half of the side armor is at a very steep angle, meaning conventional rounds will simply bounce
 
−
 
−
=== Mobility ===
 
−
<!-- ''Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forwards and backwards.'' -->
 
−
 
−
{{tankMobility|abMinHp= 671|rbMinHp= 460|<!--AoAweight=(optional) -->}}The mobility and speed of the IS-3 is decent, and is somewhere between other heavy tanks of the same tier and mediums tanks of the same tier. The IS-3 drives very similar to it's predecessors the IS-1 and IS-2. Whenever the IS-3 turns at all, much of the speed of the tank is instantly lost, making the hull turn rate IS-3 lacklustre, especially without neutral steering. This is, of course, akin to those previously mentioned predecessors.
 
−
 
−
== Armaments ==
 
−
=== Main armament ===
 
−
<!--Give the reader information about the characteristics of the main gun. Assess its effectiveness in a battle based on the reloading speed, ballistics and the power of shells. Do not forget about the flexibility of the fire, that is how quickly the cannon can be aimed at the target, open fire on it and aim at another enemy. Add a link to the main article on the gun: <code><nowiki>{{main|Name of the weapon}}</nowiki></code>. Describe in general terms the ammunition available for the main gun. Give advice on how to use them and how to fill the ammunition storage.-->
 
−
{{main|D-25T (122 mm)}}
 
  
−
{| class="wikitable" style="text-align:center"
+
==== Details ====
−
|-
+
{| class="wikitable" style="text-align:center" width="50%"
−
! colspan="6" | [[D-25T (122 mm)|122 mm D-25T]]
 
−
|-
 
−
! colspan="3" rowspan="1" style="width:5em" |Capacity
 
−
! rowspan="1" | Vertical <br> guidance
 
−
! rowspan="1" | Horizontal <br> guidance
 
−
! rowspan="1" | Stabilizer
 
−
|-
 
−
| colspan="3" | 28 || -3°/+20° || ±180° || N/A
 
−
|-
 
−
! colspan="6" | Turret rotation speed (°/s)
 
−
|-
 
−
! style="width:4em" |Mode
 
−
! style="width:4em" |Stock
 
−
! style="width:4em" |Upgraded
 
−
! style="width:4em" |Prior + Full crew
 
−
! style="width:4em" |Prior + Expert qualif.
 
−
! style="width:4em" |Prior + Ace qualif.
 
−
|-
 
−
| ''Arcade'' ||7.28||10.08||12.24||13.54||14.4
 
 
|-
 
|-
−
| ''Realistic'' ||5.36||6.30||7.65||8.43|| 9.00
+
! colspan="6" | Features
 
|-
 
|-
−
! colspan="4" | Reloading rate (seconds)
+
! Combat flaps !! Take-off flaps !! Landing flaps !! Air brakes !! Arrestor gear !! Drogue chute
 
|-
 
|-
−
! colspan="1" style="width:4em" |Stock
+
| ✓ || ✓ || ✓ || ✓ || X || X    <!-- ✓ -->
−
! colspan="1" style="width:4em" |Prior + Full crew
 
−
! colspan="1" style="width:4em" |Prior + Expert qualif.
 
−
! colspan="1" style="width:4em" |Prior + Ace qualif.
 
−
|-
 
−
|26.0||23.0||21.2||20.0
 
 
|-
 
|-
 
|}
 
|}
  
−
===== Ammunition =====
+
{| class="wikitable" style="text-align:center" width="50%"
−
{| class="wikitable sortable" style="text-align:center" width="100%"
 
−
! colspan="8" | Penetration statistics
 
 
|-
 
|-
−
! rowspan="2" data-sort-type="text" | Ammunition
+
! colspan="7" | Limits
−
! rowspan="2" class="unsortable" | Type of <br /> warhead
 
−
! colspan="6" | '''Penetration''' '''''in mm''''' '''@ 0° Angle of Attack'''
 
 
|-
 
|-
−
! 10m
+
! rowspan="2" | Wings (km/h)
−
! 100m
+
! rowspan="2" | Gear (km/h)
−
! 500m
+
! colspan="3" | Flaps (km/h)
−
! 1000m
+
! colspan="2" | Max Static G
−
! 1500m
 
−
! 2000m
 
 
|-
 
|-
−
| BR-471 || APHE ||205||201||183||162||144||128
+
! Combat !! Take-off !! Landing !! + !! -
 
|-
 
|-
−
| BR-471B || APHEBC ||205||203||191||178||166||155
+
| {{Specs|destruction|body}} || {{Specs|destruction|gear}} || 554 || 448 || 379 || ~7 || ~3
−
|-
 
−
| BR-471D || APCBC || 230 ||227||215||200||186||173
 
−
|-
 
−
| OF-471 || HE ||37||37||37||37||37||37
 
−
|-
 
−
|}
 
−
{| class="wikitable sortable" style="text-align:center" width="100%"
 
−
! colspan="11" | Shell details
 
−
|-
 
−
! rowspan="2" data-sort-type="text" | Ammunition
 
−
! rowspan="2" class="unsortable" | Type of <br /> warhead
 
−
! rowspan="2" |Velocity <br /> in m/s
 
−
! rowspan="2" |Projectile<br />Mass in kg
 
−
! rowspan="2" | ''Fuse delay''
 
−
''in m:''
 
−
! rowspan="2" | ''Fuse sensitivity''
 
−
''in mm:''
 
−
! rowspan="2" | ''Explosive Mass in g<br /> (TNT equivalent):''
 
−
! rowspan="2" | ''Normalization At 30° <br> from horizontal:''
 
−
! colspan="3" | ''Ricochet:''
 
−
|-
 
−
! 0%
 
−
! 50%
 
−
! 100%
 
−
|-
 
−
| BR-471 || APHE || 795 || 25 || 1.2 ||19||246.4|| -1° || 47° || 60° || 65°
 
 
|-
 
|-
−
| BR-471B || APHEBC ||795|| 25 || 1.2 ||19||246.4|| +4° || 48° || 63° || 71°
 
−
|-
 
−
| BR-471D || APCBC || 800 || 25 || 1.2 ||19||192.5|| +4° || 48° || 63° || 71°
 
−
|-
 
−
| OF-471 || HE || 800 || 25 || 0.1 || 0.1 || 3,600 || +0° || 79° || 80° || 81°
 
−
|-
 
 
|}
 
|}
−
 
−
===== [[Ammo racks|Ammo racks]] =====
 
−
[[File:Ammoracks IS-3.png|right|thumb|x250px|[[Ammo racks|Ammo racks]] of the IS-3.]]
 
−
 
−
The D-25T cannon fires two-piece ammunition that are stored all around the crew compartment. The majority of the projectiles are found lining the sides and rear of the turret while the majority of the propellant found in the hull, with two large piles flanking the driver and a few kept on the hull floor and rear. Next to the cannon breach on the loader's side is a small ready rack containing 5 propellant charges, with the 5 accompanying projectiles found to the loader's right against the turret side. The time it takes the loader to load one round into the ready rack from the stowage racks is about 21 seconds.
 
  
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
−
! class="wikitable unsortable" |Full<br /> ammo
+
! colspan="4" | Optimal velocities (km/h)
−
! class="wikitable unsortable" |1st<br />  rack empty
+
|-
−
! class="wikitable unsortable" |2nd<br />  rack empty
+
! Ailerons !! Rudder !! Elevators !! Radiator
−
! class="wikitable unsortable" |3rd<br />  rack empty
 
−
! class="wikitable unsortable" |4th<br />  rack empty
 
−
! class="wikitable unsortable" |5th<br />  rack empty
 
−
! class="wikitable unsortable" |6th<br />  rack empty
 
−
! class="wikitable unsortable" |Visual<br /> discrepancy
 
 
|-
 
|-
−
|| '''28''' || 23&nbsp;''(+5)'' || 17&nbsp;''(+11)'' || 13&nbsp;''(+15)'' || 10&nbsp;''(+18)'' || 8&nbsp;''(+20)'' || 1&nbsp;''(+27)'' || style="text-align:center" | no
+
| < 760 || < 800 || < 700 || N/A
 
|-
 
|-
 
|}
 
|}
  
−
* Recommended ammo load is 12, which empty all of the racks but racks 1 and 6.
+
==== Engine performance ====
−
* Ammo Rack 1 is a ready rack, and takes priority in being filled at the beginning of the battle, then fills racks 6 through 2.
 
−
* Full reload speed will be realized as long as ammo exists in the ready racks. If all three ready racks are empty, a penalty to reload speed will occur.
 
−
* Simply not firing when the gun is loaded will load ammo from racks 2-6 into rack 1, as long as there is ammo in racks 2-6. Firing will interrupt the loading of the ready racks.
 
−
 
 
−
=== Machine guns ===
 
−
<!--Offensive and anti-aircraft machine guns not only allow you to fight some aircraft but also are effective against lightly armoured vehicles. Evaluate machine guns and give recommendations on its use.-->
 
−
{{main|DShK (12.7 mm)|DT (7.62 mm)}}
 
−
 
 
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
−
! colspan="7" | [[DShK (12.7 mm)|12.7 mm DShK]]
+
! colspan="3" | Engine
 +
! colspan="6" | Aircraft mass
 +
|-
 +
! colspan="2" | Engine name || Number
 +
! colspan="3" | Empty mass || colspan="3" | Wing loading (full fuel)
 
|-
 
|-
−
! colspan="7" | ''Pintle mount''
+
| colspan="2" | Allison J35-A-35 ||  2
 +
| colspan="3" | 12,509 kg || colspan="3" | 318 kg/m<sup>2</sup>
 
|-
 
|-
−
! colspan="4" rowspan="1" style="width:5em" |Capacity (Belt capacity)
+
! colspan="3" | Engine characteristics
−
! rowspan="1" | Fire rate <br> (shots/minute)
+
! colspan="5" | Mass with fuel (no weapons load) || rowspan="2" | Max Takeoff<br />Weight
−
! rowspan="1" | Vertical <br> guidance
 
−
! rowspan="1" | Horizontal <br> guidance
 
 
|-
 
|-
−
| colspan="4" | 300 (50) || 600 || -4°/+85° || ±180°
+
! Weight (each) || colspan="2" | Type
 +
! 21m fuel || 30m fuel || 45m fuel || 60m fuel || 70m fuel
 
|-
 
|-
−
|}
+
| 1,300 kg || colspan="2" | Afterburning axial-flow turbojet
−
{| class="wikitable" style="text-align:center"
+
| 14,158 kg || 14,850 kg || 16,002 kg || 17,162 kg || 17,923 kg || 20,301 kg
 
|-
 
|-
−
! colspan="7" | [[DT (7.62 mm)|7.62 mm DT]]
+
! colspan="3" | {{Annotation|Maximum engine thrust @ 0 m (RB / SB)|The maximum thrust produced by each engine, while mounted in the aircraft. NOTE: Thrust varies significantly depending on speed & altitude.}}
 +
! colspan="6" | Thrust to weight ratio @ 0 m (WEP)
 
|-
 
|-
−
! colspan="7" | ''Coaxial mount''
+
! Condition || 100% || WEP
 +
! 21m fuel || 30m fuel || 45m fuel || 60m fuel || 70m fuel || MTOW
 
|-
 
|-
−
! colspan="4" rowspan="1" style="width:5em" |Capacity (Belt capacity)
+
| ''Stationary'' || 2,303 kgf || 3,051 kgf
−
! rowspan="1" | Fire rate <br> (shots/minute)
+
| 0.43 || 0.41 || 0.38 || 0.36 || 0.34 || 0.30
−
! rowspan="1" | Vertical <br> guidance
 
−
! rowspan="1" | Horizontal <br> guidance
 
 
|-
 
|-
−
| colspan="4" | 2,000 (63) || 600 || N/A || N/A
+
| ''Optimal'' || 2,350 kgf<br />(100 km/h) || 3,237 kgf<br />(800 km/h)
 +
| 0.46 || 0.44 || 0.40 || 0.38 || 0.36 || 0.32
 
|-
 
|-
 
|}
 
|}
  
−
== Usage in battles ==
+
=== Survivability and armour ===
−
<!--Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but instead give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).-->
+
<!-- ''Examine the survivability of the aircraft. Note how vulnerable the structure is and how secure the pilot is, whether the fuel tanks are armoured, etc. Describe the armour, if there is any, and also mention the vulnerability of other critical aircraft systems.'' -->
 +
The {{PAGENAME}}is quite a sturdy machine and won't crash from regular hits, both the pilots in the cockpit have control over the plane, so if one is knocked out, you can still fly him safe home. Not only are there two pilots in this machine, but also two engines, which if one of them is shot out, the other can still thrust you back to safety for repairs.
  
−
The IS-3, continuing the tradition of the Russian IS line of heavy tanks, sports a powerful 122mm cannon, strong frontal armour and reasonable mobility for its class. As with its predecessors, it excels at dispatching anything it can penetrate with its explosive-filled rounds, and relies heavily on its excellent reverse speed and sharply angled armour to keep itself out of trouble. However, an IS-3 commander will increasingly encounter HEAT, HESH and ATGMs which pose a serious threat to the vehicle.
+
Losing a wing tip isn't a problem as you can still fly with it, with minor compensation for aerodynamics. The thing that will mostly bring you down if you get caught in a firefight will be loss of control surfaces. So as long as you still are able to control your plane, you're good to go.
  
−
=== General Gameplay ===
+
== Armaments ==
−
One of the most important points about the IS-3 is that angling does not work - your pike nose will become easier to get through as you angle your tank, so handle all enemies head-on, if possible. However your gun is still the same 122 mm cannon as on the initial [[IS-2]] at which is situated at a lower battle rating, so it is understandable that you will struggle to penetrate many heavy enemies frontally now at the higher battle rating.
+
=== Suspended armament ===
 +
<!-- ''Describe the aircraft's suspended armament: additional cannons under the wings, bombs, rockets and torpedoes. This section is especially important for bombers and attackers. If there is no suspended weaponry remove this subsection.'' -->
 +
{{main|FFAR Mighty Mouse|HVAR}}
  
−
In the current meta, faster vehicles are more viable than heavier ones, and the IS-3 is at a big disadvantage especially in Realistic. Your armour is amazing in a downtier (to Battle Ratings 6.3 / 6.7), but it's basically non-existent in an uptier (to Battle Ratings 8.0 / 8.3, where you start seeing APFSDS and HEAT shells all the time), so knowing when to take this tank out is also a big part of gameplay with it.
+
The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
 +
* 104 x FFAR Mighty Mouse rockets
 +
* 16 x HVAR rockets + 104 x FFAR Mighty Mouse rockets
 +
* 104 x FFAR Mighty Mouse rockets M439
  
−
'''Arcade Battles'''
+
The {{PAGENAME}} is unique in its weapons loadout and stands out in a class of its own with the F-86D Sabre Dog in that the only weapons found on the fighter/interceptor are unguided aerial rockets (both FFAR and HVAR). It is not the intention of this aircraft to dogfight other fighters, instead its purpose is to was to eliminate Soviet bombers. The {{PAGENAME}} when given the clearance, would zoom-climb to bomber altitude with its afterburners engaged and then would utilise its Folding-Fin Aerial Rockets (Mighty Mouse) by shooting salvos (with 104 total rockets on board, a few could be fired off or a large amount) at inbound bomber aircraft. The rockets would spread out similar to how a shotgun works and the result should be enough rockets make contact or explode near the bombers to take them out. While these unguided rockets may not be accurate, with the amount on-board, many can be fired to increase the interceptor's chances of hitting. The HVAR rockets are larger and only a few are mounted under the wings. These rockets should be reserved for the larger and slower bombers, notwithstanding there are less to work with which decreases the chances to hit compared to the FFARs.
  
−
Surprisingly, the IS-3 can do very well in Arcade. Many enemies in Arcade don't seem to know that the best way to kill the IS-3 with a conventional round is via a shot-trap, so your survivability is increased. Moreover, when fully upgraded, the IS-3 becomes extremely mobile in Arcade allowing you to get into cover after shooting, or quickly advance on an unsuspecting enemy. The best strategy against a single enemy is to just rush them - the terrain usually bounces your tank around slightly making it very difficult to penetrate, and the sheer sight of a heavy tank speeding towards the enemy will cause some panic.  
+
While the {{PAGENAME}} was built and configured for aerial interception and destruction of aircraft, the rockets, both FFAR and HVAR can be utilised on ground targets too. The {{PAGENAME}} is outfitted with decelerons which double as speed brakes which open up in a clam-shell style. The Scorpion can dive on ground targets, engage the dive brakes, line up the target and then unleash either the FFAR or HVAR rockets depending on the target types. With the 104 FFAR Mighty Mouse rockets, enemy vehicles which are clustered together are an excellent target to unleash salvos of rockets at. Another opportunity is during domination maps, the rockets come in very handy for taking out aircraft which are attempting to cap the airfield as the rocket spread does not need to be super accurate to still achieve a critical hit or destruction of the aircraft capping the airfield.
  
−
The more experienced tanker will know when to take the IS-3 out in battle and when to use other vehicles. If you know that the game is an uptier (e.g. by checking the statistics tab, or by the map draw) you should decide against the IS-3 and take out a tank like the [[BMP-1]], which fits better into the high tier meta. Also, long-range engagements are a gamble, since your top round and long reload times make it difficult to successfully attack enemies, while they might have a HEAT shell that disregards distance. However, the rush strategy can work here as well, especially if you turn your tank in random directions once in a while, making it harder for opponents to aim at you.
+
== Usage in battles ==
 +
<!-- ''Describe the tactics of playing in the aircraft, the features of using aircraft in a team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view, but instead, give the reader food for thought. Examine the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).'' -->
 +
There's two ways to play the {{PAGENAME}}, either as a ground pounder or as fighter with irregular ammunition, being proxy fuse FFAR's
  
−
'''Realistic Battles'''
+
==== Ground pounder ====
 +
When taking the {{PAGENAME}} as a ground pounder, the preferable loadout would be taking all the rockets possible, 104 FFAR's + 16 HVAR's. Pay close attention as the HVAR's fire first before making use of the HVAR's. Exploit the fact that the {{PAGENAME}} is among the fastest accelerating for its battle rating and when arriving near targets will be quite relaxing as your enemies will still be on their way towards you.
  
−
In Realistic, the IS-3 is much more difficult to play, because enemies take more time to aim at weakspots and your mobility is toned down. Due to that, you need to take time with your own shots and know your opponents - is there an ammo-rank in the side of the Caernarvon, or should you shoot at the driver's position? and etc. Generally, you need to play with stealth in Realistic, because the person who shoots first is usually the one that gets the kill. Flanking can, and does, work with the IS-3, not because of speed, but because your teammates are shot and you can return fire at the perpetrators and continue your advance. Moreover, some light tanks that are prevalent at the higher Battle Ratings outright cannot penetrate you with their main guns (most of them have ATGMs, though).
+
Be warned considering the fact that the FFAR pods are quite far away from each other and targeting isn't as easy as using the HVAR's, firing in salvo's is advised, and having 104 rockets will be plenty enough before you have to re-arm. Hit as much as you can and run away as soon as enemies are coming for your cannonless machine.
  
−
Against ATGMs, it's a good idea to use your machine guns to shoot at the ground in front of your tank - this makes a small smoke-screen out of dirt and rubble that makes it difficult for enemies to aim their ATGMs. Keep in mind though, that you should still move your tank away from the initial position, because enemies will try to predict where you are going (it's a good idea to shoot machine guns increasingly to the left, while moving to the right, because it causes a sense of your tank moving with machine guns, while actually, you're moving in the other direction).
+
==== Fighter ====
 +
The best way to achieve kills in the {{PAGENAME}} is by taking the proximity-fuse FFAR's and playing it by boom and zooming, making great use of the high acceleration and fast climb rate. The rockets are quite inaccurate because of the fact they're spread out so much, so shooting in salvo's is strongly advised. Extremely deadly in a head-on. Rockets work down to RNG, sometimes they can annihilate and other times you can get hit after hit.
  
−
'''General Tips'''
+
=== Modules ===
 +
{| class="wikitable"
 +
! Tier
 +
! colspan="2" | Flight performance
 +
! Survivability
 +
! Weaponry
 +
|-
 +
| I
 +
| Fuselage repair
 +
|
 +
|
 +
|
 +
|-
 +
| II
 +
|
 +
| Compressor
 +
| Airframe
 +
|
 +
|-
 +
| III
 +
| Wings repair
 +
|
 +
|
 +
|
 +
|-
 +
| IV
 +
|
 +
| Engine
 +
| Cover
 +
|
 +
|-
 +
|}
  
−
The IS-3 is relatively versatile, but excels in close-range combat against conventional rounds - it is very good at taking on other heavy tanks such as the [[T32|T32]] and [[Caernarvon]].
+
* As a premium aircraft all modifications are unlocked on purchase of the vehicle.
−
 
 
−
* It has a reasonably decent top speed, and on solid ground, acceptable acceleration, allowing it to reach cap points and combat areas fairly promptly and set up in positions to allow it to make the most of the frontal armour.
 
−
* When down tiered (6.3-6.7 games), the IS-3 performs excellently, able to push forward and play its 'breakthrough' role with impunity.
 
−
* Good climbing capabilities allow the IS-3 to reach some surprising positions for sniping or supporting teammates pushing points. Despite the gun's effectiveness being reduced at the range, the armour of the vehicle becomes much more effective as weak spots become significantly harder to hit.
 
−
* Since the IS-3 can keep up with most medium tanks like the Centurions, Panthers or T-44s, it can be played as early-game heavy support for those lighter, more vulnerable hulls to assist in taking objectives.
 
−
* In up tiered games (7.7-8.3), the IS-3 can come across a lot of chemical rounds and must be played significantly more carefully, as its armour simply cannot compete with the high penetration of these rounds.
 
−
 
 
−
Play this tank almost any way that is favourable. A few tips to increase this vehicle's performance:
 
−
 
 
−
* Always face towards the enemies directly, avoid exposing the weak hull sides.
 
−
* Cover the frontal weak spots if necessary with the gun's large barrel by pointing it downwards. It's better to have the gun barrel destroyed than it is to lose crew members and be potentially unable to reverse out of bad situations.
 
−
* Stop only to fire. Movement makes the weak spots harder to target. Even when there is no destination to move to, go back and forth a few meters just so that the IS-3 hull wobbles a bit on start and stop.
 
−
* Plan aggressive pushes and movements around enemy locations. The gun has negligible depression and very bad horizontal traverse, making reacting to enemies slow and risky, and impossible if they're on lower ground.
 
−
* Avoid engaging vehicles over hills by climbing the hill as it will be hard to aim with only -3° depression and the lower plate will be vulnerable due to the angling.
 
−
* Avoid fighting tanks with HEAT/HESH/APFSDS.
 
−
* Be careful when brawling at extremely close ranges, as the top of the turret is quite vulnerable due to the vehicle's low profile.
 
−
* Avoid facing elevated opponents, as this decreases LOS thickness for hull and exposes turret top.
 
−
* Carrying less ammo helps increase survivability from penetrating shots to the turret (ammunition is spread around the edges of the turret).
 
−
 
 
−
=== The Stock Grind ===
 
−
This vehicle can be a pain to play when stock, because enemies will try to kill you in any way, often by setting you on fire 3 times in a row. Your tracks and gun barrel are frequent targets as well, and without Parts or FPE gameplay is going to be painful. Due to this, you must '''research Parts and FPE first''', this is extremely important. Generally, you would want to be behind your teammates, to let them get shot more instead of you, when reloaded you can poke out and shoot your shot, right before going back into the cover or behind teammates. Sniping is an option, but it's not the most viable since there's quite a lot of bullet drop and missing your shots will cause the very long reload.
 
−
 
 
−
===Modules===
 
−
In tier, I, ''Parts'' and ''Horizontal Drive should, of course, be the prioritized modules for repairs and turret traverse speed. These two will also unlock Tier II modifications and grant access to the very vital ''FPE'' and ''M61 shot'', the former for preservation against fires and the latter to improve damage in the battlefield.''
 
−
 
 
−
Then in tier III, ''Crew Replenishment'' should be obtained for crew survival improvement and the APCR ''T45 shot'' for improved armour-piercing power. After that, everything else could be done at one's own priorities, but ''Engine'' should be invested for better automotive performances and ''M89'' for the smoke capabilities.
 
  
 
=== Pros and cons ===
 
=== Pros and cons ===
−
<!--Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".-->
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<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' -->
−
 
 
−
'''Pros''':
 
−
 
 
−
* Very good frontal armour. Upper and lower plates are basically immune to all conventional shells
 
−
* First Soviet heavy tank that comes with the V-shaped hull and ridiculously strong spaced armour lining the sides
 
−
* Really strong turret. Even the sides of the turret are heavily armoured and angled
 
−
* Very powerful 122 mm gun; top APHE shell has high penetration and very good damage potential
 
−
* Good top speed and manoeuvrability
 
−
* Fearsome reputation
 
  
−
'''Cons''':
+
'''Pros:'''
 +
* Fearsome rocket armament, both Mighty Mouse and HVARs
 +
* Decent high-speed manoeuvrability
 +
* Dual-engine, can fly with one (though, head back to base!)
 +
* Targeting radar equipped
 +
* Bomber interceptor or ground attacker role capable
 +
* Armament will be able to easily destroy enemy planes in a head-on
 +
* Use of decelerons as ailerons, dive brakes (clamshell-type) or flaps
  
−
* Horrifying reload speed; despite the armour, fighting two tanks at once is ill-advised
+
'''Cons:'''
−
* Armor is still no match for APDS and HEAT
+
* No autocannon armament
−
* Terrible gun depression; finding a good hull-down location to use the gun is difficult
+
* Rockets are inaccurate, odds increased when launched in salvos
−
* Despite the good turret, the left side of the gun mantlet can be penetrated by conventional rounds with good penetration (Like the 88 mm shell found on the Tiger II)
+
* Not very manoeuvrable at low speeds
−
* Bottom of the gun mantlet is an infamous shot trap
+
* Large target wing-surface
−
* While a small target, the entirety of the turret ring is exposed
+
* Heavy wing-tips, losing one throws the aircraft off balance
−
* Ammo is strewn throughout the entire crew compartment
+
* Not as nimble as single-engine MiGs
−
* Roof-mounted 12.7 mm machine gun only has a 50 box magazine before needing to reload
 
−
* Only four crew members in a small crew compartment; any APHE shell that penetrates will likely knock out the entire crew
 
  
 
== History ==
 
== History ==
−
<!--Describe the history of the creation and combat usage of the ground vehicle in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/ History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></nowiki></code>, as well as adding them at the end of the article. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== Encyclopedia Info ===</nowiki></code>, also if applicable).-->
+
<!-- ''Describe the history of the creation and combat usage of the aircraft in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' -->
−
 
+
[[File:F-89D_fulzy_nyan.jpg|450px|thumb|right|'''{{PAGENAME}}''' at cruising altitude.]]
−
===Development===
+
Almost immediately after WWII, the Nothrop Corporation began developing an experimental jet fighter-interceptor to meet the new requirements for that class of aircraft. The American interceptor’s primary targets were supposed to be Soviet bombers, so the projected model’s flight characteristics and armament had to meet this objective. At first the two-seater twin-engine jet was developed to have a rather interesting four gun turret. This turret was to be mounted on the aircraft’s nose and could fire on targets either automatically or manually along a vertical plane either forward, up, down or, in some cases, backward. However, when the experimental model of the aircraft was ready, the turret still hadn’t undergone testing yet, so the military decided to install traditional static frontal guns on it, as well as HVARs on the wing pylons. It was with this loadout that the Scorpion F-89A and F-89B went into service. The armament was switched exclusively to rockets somewhat later. To make the change to rockets, the designers implemented an interesting solution: Mighty Mouse unguided rockets were installed on the front of the wing-mounted fuel tanks in such a way that the rocket and fuel sections of this part of the design were separated by a fireproof barrier. This also made it possible to install heavier, more destructive HVARs under the wing. The F-89D or “rocket” version of the Scorpion went on to become the most widespread version of the aircraft in the US air force – 682 of them were manufactured.
−
Late in 1944, development of the next generation of the IS heavy tanks started, following after the [[IS-2 (1944)|IS-2]] tank. The tank was to be better in armour compared to the IS-2 as a response to the new [[Tiger II (H)|Tiger II]] that showed up and is able to penetrate the front armour of the hull. The project was codenamed ''Kirovets-1'' and was headed by General Nikolai Dukhov.<ref name="ZalogaIS">Zaloga Steven. ''IS-2 Heavy Tank 1944-73'' Great Britain: Osprey Publishing Ltd., 1994</ref> Design bureaus at the Chelyabinsk Tractor Plant "Tankograd" (ChTZ) and Factory No. 100 worked on the design of the vehicle. A focus on the armour improvement came from a study by an engineer in the teams that most tank losses occurred from hits to the front turret, with the front hull coming in second. The two design bureaus came up with their own ideas on how to make the armour of the tank more effective, with ChTZ developing an extremely rounded turret and No.100 developing a new angled front armour in a shape of a "beak". Soviet command decided that the design should use both features in the armour as both ideas were promising. The prototype vehicle was then produced at ChTZ and completed in October 1944 when it trialled and accepted for production as the '''IS-3'''. Production for the IS-3 started in 1945 at ChTZ alongside the IS-2 production. As the first tanks rolled off production lines, it was determined that the design was rushed and unproven with its multiple mechanical problems, some of which included the armour plates welds cracking open from the vibration of cross-country movement and muzzle blast from the gun. Because of this, the IS-3 was not available in large numbers to be committed into battle, leading to their absence in the final months of World War II before Germany surrendered in May 1945.<ref name="ZalogaIS" />
 
−
 
 
−
Despite its rough introduction and prevalent mechanical issues, the IS-3 continued production with gradual fixes to the front hull, final drive, and engine mounts. The Chelyabinsk factory produced IS-3s from 1945 to 1951 for a total of 1,800 tanks.<ref name="ZalogaIS" />
 
−
 
 
−
===Usage===
 
−
Though the IS-3 was not available in large numbers at the start, the Soviets attempted to transport the IS-3 to Germany in April 1945 to assist in the fightings, but they arrived too late to be committed to any fighting. It is reported that the IS-3 did see service during the Soviet invasion of Manchuria in August 1945 to fulfil Stalin's promise in the Yalta Conference to invade Japan after the capitulation of Germany, however not much information is present about this topic.<ref name="ZalogaIS" />
 
−
 
 
−
The end of the most destructive war in history did not waver the Soviet's opinion of the IS-3 however, and the Soviet command had the 52 IS-3 tanks from the 2nd Guards Tank Army paraded in the Berlin Victory Parade on September 7, 1945.<ref name="ZalogaIS" /> The reveal of the IS-3 in the parade came as a huge shock to the Western Allies who saw the IS-3 as a nigh-invulnerable breakthrough tank with their heavy armour. The response to the tank was there to develop their own heavy tanks able to do the same job and with a gun able to fight the IS-3, such as the British [[Conqueror|Conqueror]] and the American [[M103|M103]] heavy tanks. Despite its very ominous stature, the IS-3 was still plagued with mechanical issues at this point with its poor armour quality and mechanical reliability. A short modernization program from 1948 to 1952 was made to fix these issues with tanks in production and in the depots with no change to the name designation. The IS-3 was then modernized further in the 1960s to keep it up with changing times. The modifications done were similar to the IS-2M, which gave the IS-3 extra external fuel tanks, storage bins, and protective side skirts as well as an improved engine, engine filtration, new radios, new machine guns, new gun optics, and many more small changes. The modernized IS-3 was named the ''IS-3M''.<ref name="ZalogaIS" />
 
−
 
 
−
One of the few actions the IS-3 saw in the post-war era with the Soviet Union was in 1956 during the Hungarian Revolution with a single heavy tank regiment. The Soviet's heavy tank regiments used to consist of 21 heavy tanks during World War II. In 1947, the regiment composition is changed to between 44-46 heavy tanks and 21 heavy assault guns in a mixed formation. Another change between 1958-1959 saw this mixed unit changed to consist of only heavy tanks but now consists of up to 100 heavy tanks. Despite their armour, a number of heavy tanks were lost before the Soviets were able to crush the revolution. The IS-3 after that did not see much action afterwards in the Soviet Union's hands before it started to be replaced by the newer [[T-10M|T-10]] heavy tank in the 1960s. During this time, many heavy tanks were transported to the border between the Soviet Union and China in face of the rising tension between the two countries.<ref name="ZalogaIS" />
 
−
 
 
−
The IS-3 would also be supplied to the Soviet Union's allies such as Poland, Czechoslovakia, North Korea, and Egypt. Poland and Czechoslovakia never adopted the tank after trials however, thus leaving only North Korea and Egypt as the main foreign users of the IS-3. The Egyptians used the IS-3M, 100 of which were received from the Soviets, against the Israelis in the Six-Day War in 1967. Of all the tanks used in that war, the IS-3M was the most feared by the Israelis due to the thick front armour. Israeli infantry's standard anti-tank weaponry could not penetrate through the front, and tanks as modern as the [[M48A1|M48 Patton]] also could not defeat the IS-3M. Nevertheless, the better tactics and training among the Israeli tank units were able to prevail against the IS-3M, with the IS-3 being commented by the Egyptians for its low rate of fire and outdated fire-controls to the crew's deficiency in combat. Of the 100, 73 tanks were lost during the Six-Day War. The Israeli managed to capture a number of IS-3 and pressed them into service, though only for a short period before its faults become more problematic than its benefits. The engine on the IS-3 proved to be unsuitable in the desert climate of the Middle East, and an attempt by the Israeli to alleviate this by replacing the engine with one from the [[T-54 (1951)|T-54]], though this did not prove fruitful. In the Yom Kippur War in 1973, both the Egyptians and Israeli used the IS-3M to a smaller degree than the Six Day War, the IS-3 not seeing much combat in the Egyptian forces and were used as dug-in pillboxes on the Jordan River by the Israelis.<ref name="ZalogaIS" />
 
  
−
===Decline and Discontinuation===
+
''- From [[wt:en/news/6371-development-f-89b-and-f-89d-scorpion-jet-bros-en|Devblog]]''
−
With the introduction of the lighter and more mobile [[T-54 (1951)|T-54]] main battle tank in the 1950s, the IS-3 saw less usage among the Soviet front-line as it started to become obsolete. Further development to improve and continue the IS tank series became the [[IS-4M|IS-4]], IS-7, and the [[T-10M|T-10]] tanks. However, in 1960, Nikita Khrushchev, the new premier of the Soviet Union after Stalin died, ordered heavy tank production to be terminated in wake of a new military strategy of missiles rather than conventional forces.<ref name="ZalogaIS" /> His orders are not without reason, heavy tanks are difficult to maintain and transport across the huge Soviet Union, which also did not have many bridges that could support a heavy tank. Another reason was the changing anti-tank technology that made tank armour extremely vulnerable, especially against the new anti-tank missiles that are becoming more and more efficient at their task in destroying tanks. Still, the order did not mean the dissolution of heavy tank units as by 1978, there were still up to 2,300 heavy tanks in the Far East. To this day, many heavy tanks are still either in inactive reserves or dug in as pillboxes along the borders of the Soviet Union.<ref name="ZalogaIS" /> The heavy tank's place in the Soviet Union's military was replaced by the main battle tanks (MBT) like the T-64, which presented a much better firepower, armour, and mobility for only a weight of 35 tons, a technological sign on the rising prevalence of the MBT.
 
−
 
 
−
=== In-game description ===
 
−
In spite of the fact that the IS-2 lived up to expectations, a decision was made a year after the end of the war to create a tank with even higher characteristics. Its unique welded hull and cast turret construction significantly increased its armour strength in comparison to the IS-2, from which it took many key parts and components.
 
−
 
 
−
The hull was welded together from rolled armour plates and contained no cast armour pieces. The dual-sloping inclined nose design allowed a driver's hatch to be placed in it, significantly improved visibility in the field and provided high armour strength to the frontal hull. For increased fire safety, its fuel tanks were moved from the fighting compartment to the engine compartment. It was armed with a 122 mm D-25T cannon with a coaxial 7.62 mm DT machine gun. The turret's roof was equipped with a 12.7 mm DShK anti-aircraft machine gun. It had no bow or rear machine guns.
 
−
 
 
−
At the beginning of their deployment, a range of flaws resulting from a number of design errors and miscalculations was revealed in these tanks. Among other issues, these included failures in the engine, gearbox, and parts of the armoured hull in the region of the engine compartment. In 1948-1952, all IS-3 tanks were reworked and modernised. The engine brackets were reinforced, the gearbox fixings changed, the underturret plate strengthened, the main friction coupling design updated, and the sealing enhanced on the final drive and road wheels. The 10-RK radio set was replaced with the 10-RT radio set. These changes increased the tank's mass to 48.8 tonnes.
 
−
 
 
−
The first experimental group of IS-3 heavy tanks left their factories in 1945. In total, 2,311 of them were made by mid-1946.
 
−
They were not deployed in combat in the Great Patriotic War. There are some indications that the IS-3 was used in the defeat of the Japanese army in August 1945.
 
  
 
== Media ==
 
== Media ==
−
<!--Excellent additions to the article would be video guides, screenshots from the game, and photos.-->
+
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
−
 
+
;Images
−
;Videos
+
<gallery mode="packed">
−
{{Youtube-gallery|_-YJo8JRBEM|'''Shooting Range #190''' -  ''Metal Beasts'' section at 1:00 discusses the IS-3.}}
+
File:F_89d_wallpaper001.jpg
−
 
+
File:F_89d_wallpaper002.jpg
−
;Skins
+
File:F_89d_wallpaper003.jpg
−
 
+
File:F_89d_wallpaper004.jpg
−
* [http://live.warthunder.com/feed/camouflages/?q=%23is3 Skins and camouflages for the IS-3 from live.warthunder]
+
File:F_89d_wallpaper005.jpg
−
 
+
</gallery>
−
==References==
 
−
<references />
 
  
 
== See also ==
 
== See also ==
−
''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
+
<!-- ''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
 +
* ''reference to the series of the aircraft;''
 +
* ''links to approximate analogues of other nations and research trees.'' -->
  
−
* ''reference to the series of the vehicles;''
+
* [[F-89B]] - Cannon-armed variant of the jet.
−
* ''links to approximate analogues of other nations and research trees.''
 
  
 
== External links ==
 
== External links ==
−
<!--Paste links to sources and external resources, such as:
+
<!-- ''Paste links to sources and external resources, such as:''
 
* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
−
* ''encyclopedia page on the tank;''
+
* ''encyclopedia page on the aircraft;''
−
* ''other literature.''-->
+
* ''other literature.'' -->
  
−
* [http://forum.warthunder.com/index.php?/topic/227061-vehicle-profile-is-3/#entry4370635 [Vehicle Profile<nowiki>]</nowiki> IS-3]
+
* [[wt:en/news/6371-development-f-89b-and-f-89d-scorpion-jet-bros-en|[Development<nowiki>]</nowiki> F-89B and F-89D Scorpion: Jet Bros]]
  
−
{{USSR heavy tanks}}
+
{{AirManufacturer Northrop}}
 +
{{USA jet aircraft}}
 +
{{USA premium aircraft}}

Revision as of 13:44, 21 April 2020

RANK 6 BRITAIN
Rooikat 105 PACK
F-89D
f-89d.png
F-89D
USA flag.png USA
V Rank
Battle rating:
AB RB SB
6.7 7.0 7.3
Class:
PREMIUM
Purchase:3 770 Specs-Card-Eagle.png
Show in game
This page is about the American jet fighter F-89D. For other version, see F-89B.

Description

GarageImage F-89D.jpg


The F-89D is a premium rank V American jet fighter with a battle rating of 6.7 (AB), 7.0 (RB), and 7.3 (SB). It was introduced in Update 1.91 "Night Vision".

The F-89D Scorpion was designed and built to be an all-weather interceptor intended to neutralize any potential invading Soviet bomber force. The USAAF was intent of replacing the P-61 Black Widow with another night fighter, one specifically which would fly faster (minimum 530 mph/850 kph) almost assuredly requiring the usage of jets, six sixty-calibre machine guns or 20 mm autocannons and armed with internally stored aerial rockets. To round out the aircraft for ground attack if needed, it would also need to accommodate 1,000 lb bombs and eight larger rocket types externally. Initial wind tunnel testing of the fighter determined that the proposed swept-wings were insufficient at slow speeds and were changed out with straight wings. Though causing a loss of high-end performance, increased stability at low speeds was necessary.

Other changes to the horizontal stabilizer also increased the effectiveness of the elevators and rudder. Concerns about the fuel tanks situated right over the engines were nullified when it was determined that efforts made by Northrop to protect them were considered sufficient, anything else would have required a complete redesign of the aircraft.

Other key features of the Scorpion was the usage of decelerons or clamshell-style split ailerons which work as a standard aileron, however, can open up as a dive brake or be utilized as a takeoff/landing flap. Last-minute changes by the Air Force required upgrading the engines and outfitting an afterburner, adding a radar system, fire control system, permanent wingtip fuel tanks, reconfigured nose guns and easy access to lower the entire engine to make for easier maintenance.

Having determined that the six autocannons originally specced with the F-89A and B models would be less effective against bomber formations as it requires relative precision to damage or destroy the enemy bombers. On the other hand, a new requirement for the F-89 to house 104 Folding-Fin Mighty Mouse Aerial Rockets and underwing HVAR rockets would allow the F-89 (now designated as the F-89D) the ability to launch salvos of rockets and quickly targeting another bomber to launch more and allow for the potential of one or more rockets in the salvo to accomplish the required amount of damage necessary to destroy them or cause them to turn around and retreat. Though unguided and not terribly accurate, a salvo of rockets typically allowed for one or two rockets to explode near enough to be a successful hit.

To aid in the aerodynamics of the rocket launchers, they were outfitted around the wing-tip fuel tanks. Engineered so that the launching rockets would not damage the fuel tanks, the underwing still allowed for the mounting of the larger HVAR rockets to be used against bombers, but also along with the FFAR rockets be used against ground targets. The F-89D though best used with higher speeds, can be used as a dive-bomber of sorts, when going against ground targets, the fighter should throttle back, extend dive brakes, line up the shot and fire the rockets. Immediately when finished firing, retract the brakes and full-throttle the engines to gain speed and distance from any enemy fighters which may have targeted you.

General info

Flight performance

The F-89D has probably the best acceleration for its BR, but mediocre turn rate and rolling. It locks up around 900 km/h. The plane can reach rip speeds in level flight and even shallow climbs.

Considering its mediocre turn rate & rolling speed, it's best used as a boom & zoomer.

Characteristics Max Speed
(km/h at 3,200 m) 		Max altitude
(metres) 		Turn time
(seconds) 		Rate of climb
(metres/second) 		Take-off run
(metres)
AB RB AB RB AB RB
Stock 1,009 1,002 14996 33.3 34.8 31.1 26.7 1,036
Upgraded 1,034 1,022 32.7 33.0 47.5 38.9

Details

Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear Drogue chute
✓ ✓ ✓ ✓ X X
Limits
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
920 379 554 448 379 ~7 ~3
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 760 < 800 < 700 N/A

Engine performance

Engine Aircraft mass
Engine name Number Empty mass Wing loading (full fuel)
Allison J35-A-35 2 12,509 kg 318 kg/m2
Engine characteristics Mass with fuel (no weapons load) Max Takeoff
Weight
Weight (each) Type 21m fuel 30m fuel 45m fuel 60m fuel 70m fuel
1,300 kg Afterburning axial-flow turbojet 14,158 kg 14,850 kg 16,002 kg 17,162 kg 17,923 kg 20,301 kg
Maximum engine thrust @ 0 m (RB / SB) Thrust to weight ratio @ 0 m (WEP)
Condition 100% WEP 21m fuel 30m fuel 45m fuel 60m fuel 70m fuel MTOW
Stationary 2,303 kgf 3,051 kgf 0.43 0.41 0.38 0.36 0.34 0.30
Optimal 2,350 kgf
(100 km/h) 		3,237 kgf
(800 km/h) 		0.46 0.44 0.40 0.38 0.36 0.32

Survivability and armour

The F-89Dis quite a sturdy machine and won't crash from regular hits, both the pilots in the cockpit have control over the plane, so if one is knocked out, you can still fly him safe home. Not only are there two pilots in this machine, but also two engines, which if one of them is shot out, the other can still thrust you back to safety for repairs.

Losing a wing tip isn't a problem as you can still fly with it, with minor compensation for aerodynamics. The thing that will mostly bring you down if you get caught in a firefight will be loss of control surfaces. So as long as you still are able to control your plane, you're good to go.

Armaments

Suspended armament

Main articles: FFAR Mighty Mouse, HVAR

The F-89D can be outfitted with the following ordnance:

  • 104 x FFAR Mighty Mouse rockets
  • 16 x HVAR rockets + 104 x FFAR Mighty Mouse rockets
  • 104 x FFAR Mighty Mouse rockets M439

The F-89D is unique in its weapons loadout and stands out in a class of its own with the F-86D Sabre Dog in that the only weapons found on the fighter/interceptor are unguided aerial rockets (both FFAR and HVAR). It is not the intention of this aircraft to dogfight other fighters, instead its purpose is to was to eliminate Soviet bombers. The F-89D when given the clearance, would zoom-climb to bomber altitude with its afterburners engaged and then would utilise its Folding-Fin Aerial Rockets (Mighty Mouse) by shooting salvos (with 104 total rockets on board, a few could be fired off or a large amount) at inbound bomber aircraft. The rockets would spread out similar to how a shotgun works and the result should be enough rockets make contact or explode near the bombers to take them out. While these unguided rockets may not be accurate, with the amount on-board, many can be fired to increase the interceptor's chances of hitting. The HVAR rockets are larger and only a few are mounted under the wings. These rockets should be reserved for the larger and slower bombers, notwithstanding there are less to work with which decreases the chances to hit compared to the FFARs.

While the F-89D was built and configured for aerial interception and destruction of aircraft, the rockets, both FFAR and HVAR can be utilised on ground targets too. The F-89D is outfitted with decelerons which double as speed brakes which open up in a clam-shell style. The Scorpion can dive on ground targets, engage the dive brakes, line up the target and then unleash either the FFAR or HVAR rockets depending on the target types. With the 104 FFAR Mighty Mouse rockets, enemy vehicles which are clustered together are an excellent target to unleash salvos of rockets at. Another opportunity is during domination maps, the rockets come in very handy for taking out aircraft which are attempting to cap the airfield as the rocket spread does not need to be super accurate to still achieve a critical hit or destruction of the aircraft capping the airfield.

Usage in battles

There's two ways to play the F-89D, either as a ground pounder or as fighter with irregular ammunition, being proxy fuse FFAR's

Ground pounder

When taking the F-89D as a ground pounder, the preferable loadout would be taking all the rockets possible, 104 FFAR's + 16 HVAR's. Pay close attention as the HVAR's fire first before making use of the HVAR's. Exploit the fact that the F-89D is among the fastest accelerating for its battle rating and when arriving near targets will be quite relaxing as your enemies will still be on their way towards you.

Be warned considering the fact that the FFAR pods are quite far away from each other and targeting isn't as easy as using the HVAR's, firing in salvo's is advised, and having 104 rockets will be plenty enough before you have to re-arm. Hit as much as you can and run away as soon as enemies are coming for your cannonless machine.

Fighter

The best way to achieve kills in the F-89D is by taking the proximity-fuse FFAR's and playing it by boom and zooming, making great use of the high acceleration and fast climb rate. The rockets are quite inaccurate because of the fact they're spread out so much, so shooting in salvo's is strongly advised. Extremely deadly in a head-on. Rockets work down to RNG, sometimes they can annihilate and other times you can get hit after hit.

Modules

Tier Flight performance Survivability Weaponry
I Fuselage repair
II Compressor Airframe
III Wings repair
IV Engine Cover
  • As a premium aircraft all modifications are unlocked on purchase of the vehicle.

Pros and cons

Pros:

  • Fearsome rocket armament, both Mighty Mouse and HVARs
  • Decent high-speed manoeuvrability
  • Dual-engine, can fly with one (though, head back to base!)
  • Targeting radar equipped
  • Bomber interceptor or ground attacker role capable
  • Armament will be able to easily destroy enemy planes in a head-on
  • Use of decelerons as ailerons, dive brakes (clamshell-type) or flaps

Cons:

  • No autocannon armament
  • Rockets are inaccurate, odds increased when launched in salvos
  • Not very manoeuvrable at low speeds
  • Large target wing-surface
  • Heavy wing-tips, losing one throws the aircraft off balance
  • Not as nimble as single-engine MiGs

History

F-89D at cruising altitude.

Almost immediately after WWII, the Nothrop Corporation began developing an experimental jet fighter-interceptor to meet the new requirements for that class of aircraft. The American interceptor’s primary targets were supposed to be Soviet bombers, so the projected model’s flight characteristics and armament had to meet this objective. At first the two-seater twin-engine jet was developed to have a rather interesting four gun turret. This turret was to be mounted on the aircraft’s nose and could fire on targets either automatically or manually along a vertical plane either forward, up, down or, in some cases, backward. However, when the experimental model of the aircraft was ready, the turret still hadn’t undergone testing yet, so the military decided to install traditional static frontal guns on it, as well as HVARs on the wing pylons. It was with this loadout that the Scorpion F-89A and F-89B went into service. The armament was switched exclusively to rockets somewhat later. To make the change to rockets, the designers implemented an interesting solution: Mighty Mouse unguided rockets were installed on the front of the wing-mounted fuel tanks in such a way that the rocket and fuel sections of this part of the design were separated by a fireproof barrier. This also made it possible to install heavier, more destructive HVARs under the wing. The F-89D or “rocket” version of the Scorpion went on to become the most widespread version of the aircraft in the US air force – 682 of them were manufactured.

- From Devblog

Media

Images
  • F 89d wallpaper001.jpg
  • F 89d wallpaper002.jpg
  • F 89d wallpaper003.jpg
  • F 89d wallpaper004.jpg
  • F 89d wallpaper005.jpg

See also

  • F-89B - Cannon-armed variant of the jet.

External links


Northrop Corporation
Fighters  P-61A-11 · P-61C-1
Jet fighters  F-89B · F-89D
  F-5A · F-5C · F-5E
  F-20A
Export  ␗F-5A · ▄F-5E FCU

USA jet aircraft
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F-5  F-5A · F-5C · F-5E · F-20A
F-8  F8U-2 · F-8E
F-80  F-80A-5 · F-80C-10
F-84  F-84B-26 · F-84F · F-84G-21-RE
F-86  F-86A-5 · F-86F-25 · F-86F-2 · F-86F-35
F-89  F-89B · F-89D
F-100  F-100D
F-104  F-104A · F-104C
F-14  F-14A Early · F-14B
F-15  F-15A
F-16  F-16A · F-16A ADF · F-16C
F9F  F9F-2 · F9F-5 · F9F-8
Other  P-59A · F2H-2 · F3D-1 · F3H-2 · F4D-1 · F11F-1
  Strike Aircraft
FJ-4  FJ-4B · FJ-4B VMF-232
A-4  A-4B · A-4E Early
A-6  A-6E TRAM
A-7  A-7D · A-7E · A-7K
AV-8  AV-8A · AV-8C
A-10  A-10A · A-10A Late
B-57  B-57A · B-57B
F-105  F-105D
F-111  F-111A

USA premium aircraft
Fighters  Thach's F2A-1 · Galer's F3F-2 · F2G-1 · F4U-4B VMF-214 · P-26A-34 · P-40C · P-43A-1
  P-47M-1-RE · ⋠P-47M-1-RE · P-51A · P-51D-10 · P-51D-20-NA · ␠Kingcobra · XP-55
  ▃A6M2 · ▃Ki-43-II · ▃Ki-61-Ib · ▃Bf 109 F-4 · ▃Fw 190 A-8 · ▃Spitfire LF Mk IXc
Twin-engine fighters  XP-38G · Bong's P-38J-15 · P-38K · YP-38 · P-61A-11 · XF5F · XP-50 · F7F-3
Jet fighters  P-59A · F-86F-35 · F-89B · F-89D · F-4S Phantom II · F-5C · F-20A
Strike aircraft  A-1H · A2D-1 · AU-1 · XA-38 · AV-8A · A-6E TRAM · A-10A
Bombers  A-26C-45DT · B-10B · BTD-1 · PBM-3 "Mariner" · PV-2D

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