Difference between pages "Me 262 A-1/U4" and "M247"

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m (→‎Details: Updated template to preferred type)
 
(→‎Radars: I have added radars since it lacks information about it, with some pros and cons about it too.)
 
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{{Specs-Card|code=me-262a-1a_u4}}
+
{{Specs-Card|code=us_m247}}
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{{About
 
−
|about=50mm-armed '''{{PAGENAME}}'''
 
−
|usage=planes of similar make
 
−
|link=Me 262 (Family)
 
−
}}
 
  
 
== Description ==
 
== Description ==
−
<!--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.-->
+
<!--''In the description, the first part needs to 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 the screenshot of the vehicle. If the novice player does not remember the vehicle by name, they will immediately understand what kind of vehicle it is talking about.''-->
 +
The '''{{Specs|name}}''' is a Rank {{Specs|rank}} American self-propelled anti-aircraft gun {{Battle-rating|1}}. It was introduced in [[Update 1.81 "The Valkyries"]].
  
−
[[File:GarageImage Me262A1U4.jpg|420px|thumb|left]]
+
== General info ==
−
{{break}}
+
=== Survivability and armour ===
−
The '''{{Specs|name}}''' is a rank {{Specs|rank}} German jet fighter {{Battle-rating}}. It was introduced in [[Update 1.41]].
+
<!--''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?''
  
−
The Me262 A-1/U4 Pulkzerstorer "Narwhal" is the standard Me 262 A-1 armed with a single 50 mm [[MK 214A (50 mm)|MK 214A]] cannon in the nose instead of four 30 mm MK 108.
+
''If necessary use a visual template to indicate the most secure and weak zones of the armour.''-->
 +
'''Armour type:'''
  
−
== General info ==
+
*Cast homogeneous armour (Hull)
−
=== Flight Performance ===
+
*Rolled homogeneous armour (Rear (low), Roof, Turret)
−
''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.''
 
  
−
{| class="wikitable" style="text-align:center"
+
{| class="wikitable"
−
! rowspan="2" | Characteristics
 
−
! colspan="2" | Max Speed<br>(km/h at 6,000 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)
 
 
|-
 
|-
−
! AB !! RB !! AB !! RB !! AB !! RB
+
! Armour !! Front (Slope angle) !! Sides !! Rear !! Roof
 
|-
 
|-
−
! Stock
+
| Hull || 85-200 mm (59-74°) ''Front glacis'' <br> 63-200 mm (13-60°) ''Lower glacis'' || 76 mm (8-43°) ''Front'' <br> 51 mm (0-43°) ''Rear'' || 35 mm (26-32°) ''Top'' <br> 25 mm (61-62°) ''Bottom'' || 57 mm
−
| 824 || 798 || rowspan="2" | {{Specs|ceiling}} || 29.0 || 30.0 || 16.0 || 15.0 || rowspan="2" | 750
 
 
|-
 
|-
−
! Upgraded
+
| Turret || 25.4 mm (15-76°) ''Turret front (Upper)'' <br> 12.7 mm (40-69°) ''Turret front (Lower)'' <br> 25.4 mm (0-87°) ''Gun mantlet'' || 12.7-25.4 mm (0-19°) ''Upper'' <br> 12.7 mm (40-69°) ''Lower'' || 12.7 mm (18°) || 12.7 mm
−
| 909 || 865 || 27.7 || 28.0 || 24.5 || 20.0
 
 
|-
 
|-
 
|}
 
|}
 +
'''Notes:'''
 +
 +
* Suspension wheels and tracks are 20 mm thick.
 +
* Belly armour is 38 mm in the front and 25 mm in the rear.
 +
 +
=== 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= 1065|rbMinHp= 663|<!--AoAweight=(optional) -->}}
 +
 +
The {{PAGENAME}}'s turret is installed on the hull of an [[M48A1|M48 medium tank]], because of this they have roughly similar mobility. The {{PAGENAME}} is about 3 tons heavier than the M48A1 (49.3 tons vs. 46.4 tons), and has a slightly weaker engine, which translates into a slightly more sluggish machine compared to the M48A1. The M48A1 has a max engine power of 810 hp, while the {{PAGENAME}}'s engine power is 750 hp. For a vehicle this heavy, it has fairly good mobility. When spaded, it can comfortably hit a top speed of 45 km/h on flat terrain, while in cross-country you will have a top speed of around 25 km/h. While going backwards, the top speed is somewhat less impressive: about -9 km/h.
 +
 +
== Armaments ==
 +
<!--''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|Bofors L/70 (40 mm)}}
  
−
====Details====
 
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
−
! colspan="6" | Features
+
! colspan="6" | [[Bofors L/70 (40 mm)|40 mm M266 Automatic Cannon]] (x2)
 +
|-
 +
! colspan="3" rowspan="1" style="width:5em" |Capacity (Belt capacity each)
 +
! rowspan="1" | Fire rate <br> (shots/minute)
 +
! rowspan="1" | Vertical <br> guidance
 +
! rowspan="1" | Horizontal <br> guidance
 +
|-
 +
| colspan="3" | 560 (280) || 300 || -5°/+85° || ±180°
 
|-
 
|-
−
! Combat flaps !! Take-off flaps !! Landing flaps !! Air brakes !! Arrestor gear !! Drogue chute
+
! colspan="6" | Turret rotation speed (°/s)
 
|-
 
|-
−
| ✓ || ✓ || ✓ || X || X || X    <!-- ✓ -->
+
! 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'' || 52.8 || ? || ? || ? || ?
−
 
 
−
{| class="wikitable" style="text-align:center"
 
 
|-
 
|-
−
! colspan="7" | Limits
+
| ''Realistic'' || 35.7 || ? || ? || ? || ?
 
|-
 
|-
−
! rowspan="2" | Wings (km/h)
+
! colspan="4" | Reloading rate (seconds)
−
! rowspan="2" | Gear (km/h)
 
−
! colspan="3" | Flaps (km/h)
 
−
! colspan="2" | Max Static G
 
 
|-
 
|-
−
! Combat !! Take-off !! Landing !! + !! -
+
! colspan="1" style="width:4em" |Stock
 +
! colspan="1" style="width:4em" |Prior + Full crew
 +
! colspan="1" style="width:4em" |Prior + Expert qualif.
 +
! colspan="1" style="width:4em" |Prior + Ace qualif.
 
|-
 
|-
−
| {{Specs|destruction|body}} || {{Specs|destruction|gear}} || 580 || 580 || 380 || ~11 || ~5
+
| 6.5 || ? || ? || ?
 
|-
 
|-
 
|}
 
|}
  
−
{| class="wikitable" style="text-align:center"
+
=== Ammunition ===
 +
{| class="wikitable sortable" style="text-align:center" width="100%"
 +
! colspan="8" | Penetration statistics
 +
|-
 +
! rowspan="2" data-sort-type="text" | Ammunition
 +
! rowspan="2" class="unsortable" | Type of <br /> warhead
 +
! colspan="6" | '''Penetration''' '''''in mm''''' '''@ 90°'''
 
|-
 
|-
−
! colspan="4" | Optimal velocities (km/h)
+
! 10m
 +
! 100m
 +
! 500m
 +
! 1000m
 +
! 1500m
 +
! 2000m
 
|-
 
|-
−
! Ailerons !! Rudder !! Elevators !! Radiator
+
| M811 || HEFI-T* || 5 || 5 || 5 || 5 || 5 || 5
 
|-
 
|-
−
| < 500 || < 600 || < 680 || N/A
+
| M822 || HEFI-T* || 5 || 5 || 5 || 5 || 5 || 5
 
|-
 
|-
 +
| 40 mm AP-T || AP-T || 93 || 90 || 77 || 62 || 51 || 41
 +
|-
 
|}
 
|}
−
 
+
{| class="wikitable sortable" style="text-align:center" width="100%"
−
==== Engine performance ====
+
! colspan="11" | Shell details
−
{| class="wikitable" style="text-align:center"
 
 
|-
 
|-
−
! colspan="3" | Engine
+
! rowspan="2" data-sort-type="text" | Ammunition
−
! colspan="6" | Aircraft mass
+
! 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:''
 
|-
 
|-
−
! colspan="2" | Engine name || Number
+
! 0%
−
! colspan="3" | Empty mass || colspan="3" | Wing loading (full fuel)
+
! 50%
 +
! 100%
 
|-
 
|-
−
| colspan="2" | Junkers Jumo 004B-1 || 2
+
| M811 || HEFI-T* || 1100 || 0.87 || 0.2 || 0.1 || 255 || +0° || 79° || 80° || 81°
−
| colspan="3" | 4,280 kg || colspan="3" | 287 kg/m<sup>2</sup>
 
 
|-
 
|-
−
! colspan="3" | Engine characteristics
+
| M822 || HEFI-T* || 1100 || 0.87 || 0.2 || 0.1 || 185 || +0° || 79° || 80° || 81°
−
! colspan="5" | Mass with fuel (no weapons load) || rowspan="2" | Max Takeoff<br/>Weight
 
 
|-
 
|-
−
! Weight (each) || colspan="2" | Type
+
| 40 mm AP-T || AP-T || 1030 || 0.88 || N/A || N/A || N/A || -1° || 48° || 69° || 79°
−
! 16m fuel || 20m fuel || 30m fuel || 45m fuel || 53m fuel
 
 
|-
 
|-
−
| 720 kg || colspan="2" | Axial-flow turbojet
+
|}
−
| 4,894 kg || 5,041 kg || 5,409 kg || 5,961 kg || 6,255 kg || 6,520 kg
+
 
−
|-
+
===Belt types===
−
! 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.}}
+
{| class="wikitable" style="text-align:center" width="100%"
−
! colspan="6" | Thrust to weight ratio @ 0 m (100%)
+
| style="width: 8%" | '''Belts'''
 +
| style="width: 20%" | '''Shell composition'''
 +
| '''Combat usage'''
 
|-
 
|-
−
! Condition || 100% || WEP
+
| ''Default'' || HEFI-T* / AP-T || align="left" | Good general ammunition, a hit on an aircraft typically means its destruction while still enough to do damage to armoured ground vehicles, especially if it shoots into the side of an enemy tank (weaker armour). Good to start with until comfortable with other types of ammunition.
−
! 16m fuel || 20m fuel || 30m fuel || 45m fuel || 53m fuel || MTOW
 
 
|-
 
|-
−
| ''Stationary'' || 910 kgf || N/A
+
|''40 mm AP-T'' || AP-T / AP-T / AP-T / HEFI-T* || align="left" | Very powerful ammunition which can be used against ground targets with significantly more penetration than other 35-40 mm AP-T projectiles. Will easily destroy any target with side shots even outside the point-blank range and can destroy lighter targets and weak spots from the front even against main battle tanks.
−
| 0.37 || 0.36 || 0.34 || 0.30 || 0.29 || 0.28
 
 
|-
 
|-
−
| ''Optimal'' || 910 kgf<br/>(0 km/h) || N/A
+
|''M811'' || HEFI-T* / HEFI-T* / HEFI-T* / AP-T || align="left" | "Poor man's anti-air ammunition." Unlike the M822 shells these require direct hits to do significant damage, but if problems are experienced with M822 detonating too early this belt may be your best choice.
−
| 0.37 || 0.36 || 0.34 || 0.30 || 0.29 || 0.28
 
 
|-
 
|-
 +
|''M822'' || HEFI-T* / HEFI-T* / AP-T || align="left" | Proximity-fused shells that absolutely obliterate aircraft when they make contact, though if they detonate too early, they will do little to no damage. Somewhat unreliable in if they detonate within range of the target, but when they do the target will quickly take considerable damage if not destroyed. The only ammunition for self-propelled anti-aircraft guns that which can cause enough shrapnel damage to bring down planes and helicopters even with near misses. This round should be the go-to anti-air ammunition, although the M811 is a good backup if the M822 is problematic for the gunner.
 
|}
 
|}
−
 
−
=== Survivability and armour ===
 
−
<!--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.-->
 
−
* 15 mm Steel - Behind the pilot
 
−
* 15 mm Steel - Pilot's headrest
 
−
* 15 mm Steel - Between cockpit and fore fuel tank
 
−
* 15 mm Steel - Instrument panel plate
 
−
* 90 mm Bulletproof glass
 
−
 
−
== Armaments ==
 
−
=== Offensive armament ===
 
−
<!--Describe the offensive armament of the aircraft, if any. Describe how effective the cannons and machine guns are in a battle, and also what belts or drums are better to use. If there is no offensive weaponry, delete this subsection.-->
 
−
{{main|MK 214A (50 mm)}}
 
−
 
−
The Me 262 A-1/U4 is armed with:
 
−
 
−
* 1 x 50 mm MK 214A cannon (32 rpg = 32 total)
 
−
 
−
The single 50 mm cannon barrel extends out the nose of the aircraft.
 
  
 
== Usage in battles ==
 
== Usage in battles ==
−
<!--Describe the tactics of playing in an aircraft, the features of using vehicles 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).-->
+
''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 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).''
−
The main tactic to use against bombers is a head-on attack or a long-range shot. Aim for the large fuselage, as the 50 mm HEI-T shell will ''obliterate'' any plane it hits in one or two shots or will knock out the pilot. In a deflection shot from above, a 50 mm HEI-T to the wing almost always shreds the entire wing of the enemy or severely damages the wing to the extent a bomber will be unable to fly. A high dive from behind the bomber will offer the biggest and easiest target, but this should be avoided against the [[B-29A-BN|B-29]].
 
  
−
A common set-up for an advantageous position in the battle is for the Me 262 to speed up to approximately 450 km/h, then immediately climb to the side by utilizing the jet's effective climb rate and energy retention. Continue to climb until you reach around 5000 m then build up speed to hunt down enemy planes, fighters and bombers alike.
+
=== Modules ===
 +
{| class="wikitable"
 +
!Tier
 +
! colspan="2" |Mobility
 +
!Protection
 +
! colspan="3" |Firepower
 +
|-
 +
|I
 +
|Tracks||
 +
|Parts
 +
|Horizontal Drive||M811||
 +
|-
 +
|II
 +
|Suspension||Brake System
 +
|FPE
 +
|Adjustment of Fire||40 mm AP-T||
 +
|-
 +
|III
 +
|Filters||
 +
|Crew Replenishment
 +
|Elevation Mechanism||Smoke grenade||NVD
 +
|-
 +
|IV
 +
|Transmission||Engine
 +
|
 +
|Laser rangefinder||Artillery support||M822
 +
|}
  
−
Compared to other fighter-jets, the "Pulkzerstörer" has an extraordinary long range hitting power. A long-range shot can be attempted! Do not be afraid to shoot from up to 1.2 km away, as the 50 mm is very accurate especially when the upgrade is unlocked. Furthermore, AI gunners will not engage you if you are attacking from farther than 660 m.
+
=== '''Radar'''s ===
  
−
Unlike the other [[Me 262 A-1a|Me 262s]] the MK 214A has a great bullet trajectory making shots above 500 m (1,600 ft) very easy. Even shots up to 1,500 m (1 mile) are a common feat and unlike the American [[Browning M3 (12.7 mm)|.50 cal M3 Browning]] the hitting power does not decline over distance.
+
=== [[Albis]] ===
 +
The M247 uses the [[Albis]] tracking radar. The ''tracking radar director'' is the circular looking cone located above the leftmost forward of the turret and has a fixed horizontal position and only follows vertical targeting together with the armament. It may look like almost the same ''tracking radar director'' as the M163's but it's different.
  
−
The Mk 214A 50 mm cannon has extremely low accuracy in stock configuration. Unlocking the upgraded cannon is a must.
+
{| class="wikitable"
 +
! colspan="5" |[[wikipedia:AN/APG-66|AN/APG-66]] - Target Tracking Radar
 +
|-
 +
!Maximum
 +
Detection
  
−
When used against ground targets, use the HVAP shells. They can destroy Heavy Tanks if shot in the sides, rear, or roof. Pillboxes can be destroyed using a high-angle dive (shooting through the roof), just make sure you pull out in time. in Ground Forces, use the same tactics. A skilled pilot will use the standard AP-T rounds and aim more carefully against the weak points of a tank; the AP-T contains an explosive filler which is more likely to detonate ammo or ignite fires.
+
Range
 +
!Minimum
 +
Detection
  
−
=====Ammunition usage=====
+
Range
−
''Armored Targets Belt A''<br>
+
!Max Azimuth
−
The AP-T belt is a good omni-purpose round, though expect some shots to pass right through aircraft structures and do no damage. The AP-T contains an explosive filler which can detonate inside the fuselage of a plane or inside of a tank. In most scenarios, the first hit will damage the aircraft (or in rare cases set it on fire), and the second will be the final blow. In Ground Forces, aim for the roofs of tanks or the rear of tanks within 500 meters to be effective. ''A well-placed shot to the ammunition of any tank will detonate the ammunition in most cases''
+
Tracking Angle
 +
!Elevation Tracking
 +
Angle
 +
!Minimum Relative
 +
Speed
 +
|-
 +
|15,000 m
 +
|100 m
 +
|±10 degrees
 +
| -5°/+85°
 +
|15m/s (54km/h)
 +
|}
  
−
''Armored Targets Belt B''<br>
+
==== [[wikipedia:AN/MPQ-49_Forward_Area_Alerting_Radar|AN/MPQ-49]] ====
−
HVAP is extremely effective against ground targets and can penetrate up to 108 mm within 500 meters. However, it lacks any explosive filler. Shots to planes will almost always result in the shell going straight through the plane with little or no damage. That being said; shots to critical components on planes such as wing spars or the fuselage may result in that component being blown off entirely.
+
The M247's uses a modified [[wikipedia:AN/MPQ-49_Forward_Area_Alerting_Radar|AN/MPQ-49]] search radar. It has the longest search range even when compared to 10.0 SPAAGs, yet it is still questionable if that long search range will be used often or frequently as most ''ground realistic battles''<nowiki/>' jets and helicopters spawn already within 10km into the battlefield, this is why most commanders of the M247 have their ranges set to only 10km most of the time, not unless maps like ''Port Novorossiysk'' that have airfields that are more than 30kms away. Some helicopters do spawn on the farthest helipad where it is near the airfield, this is one of the reasons commanders of the M247 can set their ranges to 20km which is way above their target locking range and especially engagement range.
  
−
''Air Targets''<br>
+
{| class="wikitable"
−
The HEI-T (Minengeschoß) will obliterate any plane on the first or second hit. If even one shell lands on an enemy, the enemy plane is at least critically damaged and will likely crash over time. Only in rare cases will this shell fail to destroy an enemy on the second shot (such as shooting the very end of a wing or elevator, or a heavily armoured fuselage). The B-29 is the only tough nut to crack with this ammunition due to its sheer size; aim for the wings or engines.
+
! colspan="5" |[[wikipedia:AN/MPQ-49_Forward_Area_Alerting_Radar|AN/MPQ-49]]
−
 
+
|-
−
'''Aim well, and you will be rewarded.'''<br>
+
!Maximum
−
Do not overcompensate for the lead when aiming for planes- the 50 mm travels very quickly and in most cases (under 600 meters) only a little lead is necessary.
+
Detection
−
 
 
−
====Specific enemies worth noting====
 
−
Against piston-fighters, energy advantage is a must- as with the standard Me262A-1. '''Do not dogfight with piston aircraft'''. Use energy tactics- always boom and zoom. Against fighters it is important to monitor ammunition as the Mk.214a only has 32 shots before a reload is needed. Most passes will only allow you to take 2 or 3 shots before you must reset the position and try again. Head-ons are a viable tactic (some enemies will fear facing a 50 mm and will actively try to avoid doing so), but engage from a long distance- even if you survive the pass, the Narwhal has very fragile engines.
 
  
−
Jet fighters are the biggest threat to the Narwhal. All jet-fighters will out-climb and out-accelerate you, and your gun has a very slow rate of fire. Thus, the Narwhal is often seen as an easy target. However, the Me 262 family is known for being manoeuvrable at low-speeds when compared to other Jets at its rank. Use your superior low-speed agility to avoid as many passes as you can, then punish a greedy enemy with a well-aimed 50 mm shell.
+
Range
 +
!Minimum
 +
Detection
  
−
===Manual Engine Control===
+
Range
−
{| class="wikitable" style="text-align:center"
+
!Max Azimuth
−
|-
+
Scan Angle
−
! colspan="7" | MEC elements
+
!Max Elevation
−
|-
+
Scan Angle
−
! rowspan="2" |Mixer
+
!Minimum
−
! rowspan="2" |Pitch
+
Relative
−
! colspan="3" |Radiator
 
−
! rowspan="2" |Supercharger
 
−
! rowspan="2" |Turbocharger
 
−
|-
 
−
! Oil
 
−
! Water
 
−
! Type
 
−
|-
 
−
| Controllable || rowspan="2" | Not controllable || rowspan="2" | Not controllable || rowspan="2" | Not controllable || rowspan="2" | Separate || rowspan="2" | Not controllable || rowspan="2" | Not controllable
 
−
|-
 
−
|}
 
  
−
===Modules===
+
Speed
−
{| class="wikitable"
 
−
! Tier
 
−
! Flight performance
 
−
! Survivability
 
−
! Weaponry
 
−
|-
 
−
| I
 
−
| Fuselage Repair
 
−
|
 
−
| Offensive 50 mm
 
−
|-
 
−
| II
 
−
| Compressor
 
−
| Airframe
 
−
|
 
−
|-
 
−
| III
 
−
| Wing Repair
 
−
|
 
−
| New 50 mm Cannons
 
−
|-
 
−
| IV
 
−
| Engine
 
−
| Cover
 
−
|
 
 
|-
 
|-
 +
|40,000 m
 +
|100 m
 +
|360°
 +
|17°
 +
|10m/s (34km/h)
 
|}
 
|}
 +
{{Notice|Locking a target through sniper mode is not needed anymore as long as the target to be destroyed is detected and selected from the search radar while turret is pointed within 200 degrees to the target.}}
  
−
Research the ammo belts ASAP! The mixed ammo belt is a nightmare. The stock ammo line up (HE(M)-T + HE-T + APHE) has only one effective anti-air round, the other two lack the one-shot ability for such a precise weapon. Unlocking the belts and the 'New 50 mm Cannon' should be your highest priority, as the stock cannon has a large dispersion radius which nearly requires the pilot to shoot within 500m for an accurate hit. After this compressor and engine should be the next target as each one improves the acceleration of the "Pulkzerstörer" which is due to the design of all ''Schwalbe'' jets just short of awful. The remaining upgrades can be chosen at leisure. The cannon is not prone to overheat and top speed is not something to worry about as the 262 can only reach it with a dive anyway.
+
== Pros and cons ==
 +
<!--''Summarize 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 - they have a substitution in the form of softer "inadequate", "effective".''-->
  
−
=== Pros and cons ===
+
'''Pros:'''
−
<!--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:'''
+
* Twin stabilized 40 mm M266 cannon (L/70 40 mm Bofors) have a much higher rate of fire compared to the M42 Duster: Deadlier and more accurate
−
* 50 mm Minengeschoß will obliterate any enemy in one or two shots, every time
+
* Large ammunition count ensures that you will have plenty to fire throughout a match without fear of running out of ammo mid-game
−
* Faster than its propeller mounting opposition
+
* Has access to 12 x 66 mm smoke grenades, perfect for exiting a dangerous situation
−
* Gun is '''extremely''' effective against Bombers
+
* The M822 ammunition is proximity fused and will detonate if the projectile passes close enough to the target
−
* Capable of long-range attacks
+
* The 40 mm's pose a serious threat to lightly-armoured vehicles
−
* Me-262 family are manoeuvrable ''against jets at lower speeds''
+
* Uses the M48 Patton's hull (armour included) = one of the best-protected SPAA in the game
−
* Excellent ground-attacker with HVAP-T shells
+
* Benefits in realistic battles from aim-assistance thanks to the radar
−
* Extremely fun and satisfying to see an enemy blow up into a thousand pieces from a well-aimed shot
+
* Has access to night-vision devices for use in night battles
−
* Often seen as an easy target which will result in pilots making mistakes you can punish them for
+
* Large radar sweep range to easily spot targets, as well as a large radar lock-on marker in its scope
−
* Engine pods can be used as high-friction landing gear to make high speed (approx 400 km/h) emergency landings for rearming and repair, avoiding any serious damage to the structural integrity of the aircraft
+
* Has the furthest search radar range even when compared to 10.0 SPAAGs
  
 
'''Cons:'''
 
'''Cons:'''
−
* Low energy will result in the Me 262's failing against a capable opponent
+
 
−
* Low rate of fire, especially considering that it will be facing a lot of fast-moving jets and nimble prop aircraft which is not the primary target for the 50 mm gun
+
* As with all high-rank SPAA, the M247 has very thin turret armour; a shell strike could instantly end the vehicle
−
* Horrendous stock accuracy
+
** Turret is also vulnerable to strafing aircraft + rockets
−
* Bad stock ammunition
+
*Armour advantages are nullified due to the inclusion of the Hull Break mechanic
−
* Low Ammo Capacity of 32 rounds of ammo
+
*No thermal sights
−
* Historically weak Jumo 004 engines have average acceleration
+
*Search radar cannot be folded
−
* Some unlucky shots will pass right through your enemy, inflicting no damage (especially the case of HVAP rounds)
 
−
* Performance drop at higher altitudes
 
−
* Exposed engines that are very prone to damage, and will quickly deteriorate if damaged
 
  
 
== History ==
 
== History ==
−
''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></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>=== In-game description ===</nowiki></code>, also if applicable).''
+
<!--''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 big, take it to a separate article, taking a link to an 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.''-->
 +
 
 +
The M247 "Sergeant York" was designed in the late 1970's as a purpose-built SPAAG. It was designed to fight alongside the [[M1 Abrams]] and [[M3 Bradley|M2/M3 Bradley]], in order to provide cover against aircraft. There were other SPAA vehicles in service at the time; these were the [[M163|M163 Vulcan]] and the MIM-72/M48 Chaparral. The former being a 20 mm rotary cannon mounted on an armored personnel carrier, and the latter being a heavily modified armored personnel carrier chassis with a surface-to-air missile launcher. Neither of those two vehicles were designed as SPAA's, and so, did not have the necessary performance to be adequate at their job. The M247 was designed as a replacement for both of the previous vehicles.
 +
 
 +
Designs from a multitude of companies were entered into the competition. Only two were selected for testing: the Ford XM-247 with twin Bofors 40mm cannons and the General Dynamics XM-246 with twin Oerlikon 35mm cannons. The two prototypes were tested, and the XM-247 was selected as the winner, although the XM-246 had outscored it in all the shooting tests. The M247, as it was soon designated, ran into many problems. The radar was extremely deficient; it had a hard time distinguishing trees from planes, and if the guns were pointed too high, they would get in the radar's way and confuse it even more. In addition, it took too long for the radar to pick up a target and for the guns to actually take aim. In addition, the turret traverse speed was much too slow, the vehicle it's self was too sluggish to keep up the M1's and M2's, and it was unreliable in cold weather. Eventually, the program was cancelled after more testing, where it was proven the system could not even shoot down stationary drones. There was still a need for an anti-aircraft vehicle that could keep up with modern vehicles, so Oerlikon Canada created the [[ADATS]] anti-aircraft missile system. This was not as successful as hoped, and was only accepted into Canadian service. The void was eventually filled by the M6 Linebacker, an M2 Bradley with Stinger missiles instead of TOW missiles. The Linebacker was capable of keeping up with modern armored forces, which was the reason for its acceptance, even though the Stingers were not as effective as the ADATS missiles<ref>https://en.wikipedia.org/wiki/M247_Sergeant_York</ref>.
  
 
== Media ==
 
== Media ==
−
''Excellent additions to the article would be video guides, screenshots from the game, and photos.''
+
<!--''An excellent addition to the article will be video guides, as well as screenshots from the game and photos.''-->
 +
[https://live.warthunder.com/feed/camouflages/?q=#m247 '''Skins''' and '''camouflages''' for the M247 Sergeant York from live.warthunder.com.]
  
 
== 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;''
 +
* ''links to approximate analogues of other nations and research trees.''-->
 +
 
 +
* [[M48A1|M48A1 Patton]]
 +
* [[M42|M42 Duster]]
 +
* [[M163|M163 Vulcan]]
 +
* [[ADATS]]
  
 
== 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 aircraft;''
+
* ''encyclopedia page on tank;''
−
* ''other literature.''
+
* ''other literature.''-->
 +
 
 +
* [[wt:en/news/5714-development-tam-and-m247-sergeant-york-en|[Devblog<nowiki>]</nowiki> TAM and M247 Sergeant York]]
 +
* "[https://en.wikipedia.org/wiki/M247_Sergeant_York|M247 Sergeant York]", ''Wikipedia.org'', Accessed on 24 March 2020.
  
−
{{AirManufacturer BFW}}
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{{USA anti-aircraft vehicles}}
−
{{Germany jet aircraft}}
+
<references />

Revision as of 17:09, 30 April 2020

Rank IV USSR | Premium | Golden Eagles
Tu-1 Pack
M247
us_m247.png
M247
USA flag.png USA
VI Rank
Battle rating:
AB RB SB
9.0 9.0 9.0
Class:
Research:190 000 Specs-Card-Exp.png
Purchase:520 000 Specs-Card-Lion.png
Show in game

Description

The Gun, Air Defence Artillery, Self-Propelled, 40-mm, M247 is a Rank VI American self-propelled anti-aircraft gun with a battle rating of 9.0 (AB/RB/SB). It was introduced in Update 1.81 "The Valkyries".

General info

Survivability and armour

Armour type:

  • Cast homogeneous armour (Hull)
  • Rolled homogeneous armour (Rear (low), Roof, Turret)
Armour Front (Slope angle) Sides Rear Roof
Hull 85-200 mm (59-74°) Front glacis
63-200 mm (13-60°) Lower glacis 		76 mm (8-43°) Front
51 mm (0-43°) Rear 		35 mm (26-32°) Top
25 mm (61-62°) Bottom 		57 mm
Turret 25.4 mm (15-76°) Turret front (Upper)
12.7 mm (40-69°) Turret front (Lower)
25.4 mm (0-87°) Gun mantlet 		12.7-25.4 mm (0-19°) Upper
12.7 mm (40-69°) Lower 		12.7 mm (18°) 12.7 mm

Notes:

  • Suspension wheels and tracks are 20 mm thick.
  • Belly armour is 38 mm in the front and 25 mm in the rear.

Mobility

Game Mode Max Speed (km/h) Weight (tons) Engine power (horsepower) Power-to-weight ratio (hp/ton)
Forward Reverse Stock Upgraded Stock Upgraded
Arcade 53 9 49.4 1065 1,431 21.56 28.97
Realistic 49 8 663 750 13.42 15.18

The M247's turret is installed on the hull of an M48 medium tank, because of this they have roughly similar mobility. The M247 is about 3 tons heavier than the M48A1 (49.3 tons vs. 46.4 tons), and has a slightly weaker engine, which translates into a slightly more sluggish machine compared to the M48A1. The M48A1 has a max engine power of 810 hp, while the M247's engine power is 750 hp. For a vehicle this heavy, it has fairly good mobility. When spaded, it can comfortably hit a top speed of 45 km/h on flat terrain, while in cross-country you will have a top speed of around 25 km/h. While going backwards, the top speed is somewhat less impressive: about -9 km/h.

Armaments

Main article: Bofors L/70 (40 mm)
40 mm M266 Automatic Cannon (x2)
Capacity (Belt capacity each) Fire rate
(shots/minute) 		Vertical
guidance 		Horizontal
guidance
560 (280) 300 -5°/+85° ±180°
Turret rotation speed (°/s)
Mode Stock Upgraded Prior + Full crew Prior + Expert qualif. Prior + Ace qualif.
Arcade 52.8  ?  ?  ?  ?
Realistic 35.7  ?  ?  ?  ?
Reloading rate (seconds)
Stock Prior + Full crew Prior + Expert qualif. Prior + Ace qualif.
6.5  ?  ?  ?

Ammunition

Penetration statistics
Ammunition Type of
warhead 		Penetration in mm @ 90°
10m 100m 500m 1000m 1500m 2000m
M811 HEFI-T* 5 5 5 5 5 5
M822 HEFI-T* 5 5 5 5 5 5
40 mm AP-T AP-T 93 90 77 62 51 41
Shell details
Ammunition Type of
warhead 		Velocity
in m/s 		Projectile
Mass in kg 		Fuse delay

in m:

Fuse sensitivity

in mm:

Explosive Mass in g
(TNT equivalent): 		Normalization At 30°
from horizontal: 		Ricochet:
0% 50% 100%
M811 HEFI-T* 1100 0.87 0.2 0.1 255 +0° 79° 80° 81°
M822 HEFI-T* 1100 0.87 0.2 0.1 185 +0° 79° 80° 81°
40 mm AP-T AP-T 1030 0.88 N/A N/A N/A -1° 48° 69° 79°

Belt types

Belts Shell composition Combat usage
Default HEFI-T* / AP-T Good general ammunition, a hit on an aircraft typically means its destruction while still enough to do damage to armoured ground vehicles, especially if it shoots into the side of an enemy tank (weaker armour). Good to start with until comfortable with other types of ammunition.
40 mm AP-T AP-T / AP-T / AP-T / HEFI-T* Very powerful ammunition which can be used against ground targets with significantly more penetration than other 35-40 mm AP-T projectiles. Will easily destroy any target with side shots even outside the point-blank range and can destroy lighter targets and weak spots from the front even against main battle tanks.
M811 HEFI-T* / HEFI-T* / HEFI-T* / AP-T "Poor man's anti-air ammunition." Unlike the M822 shells these require direct hits to do significant damage, but if problems are experienced with M822 detonating too early this belt may be your best choice.
M822 HEFI-T* / HEFI-T* / AP-T Proximity-fused shells that absolutely obliterate aircraft when they make contact, though if they detonate too early, they will do little to no damage. Somewhat unreliable in if they detonate within range of the target, but when they do the target will quickly take considerable damage if not destroyed. The only ammunition for self-propelled anti-aircraft guns that which can cause enough shrapnel damage to bring down planes and helicopters even with near misses. This round should be the go-to anti-air ammunition, although the M811 is a good backup if the M822 is problematic for the gunner.

Usage in battles

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 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).

Modules

Tier Mobility Protection Firepower
I Tracks Parts Horizontal Drive M811
II Suspension Brake System FPE Adjustment of Fire 40 mm AP-T
III Filters Crew Replenishment Elevation Mechanism Smoke grenade NVD
IV Transmission Engine Laser rangefinder Artillery support M822

Radars

Albis

The M247 uses the Albis tracking radar. The tracking radar director is the circular looking cone located above the leftmost forward of the turret and has a fixed horizontal position and only follows vertical targeting together with the armament. It may look like almost the same tracking radar director as the M163's but it's different.

AN/APG-66 - Target Tracking Radar
Maximum

Detection

Range

Minimum

Detection

Range

Max Azimuth

Tracking Angle

Elevation Tracking

Angle

Minimum Relative

Speed

15,000 m 100 m ±10 degrees -5°/+85° 15m/s (54km/h)

AN/MPQ-49

The M247's uses a modified AN/MPQ-49 search radar. It has the longest search range even when compared to 10.0 SPAAGs, yet it is still questionable if that long search range will be used often or frequently as most ground realistic battles' jets and helicopters spawn already within 10km into the battlefield, this is why most commanders of the M247 have their ranges set to only 10km most of the time, not unless maps like Port Novorossiysk that have airfields that are more than 30kms away. Some helicopters do spawn on the farthest helipad where it is near the airfield, this is one of the reasons commanders of the M247 can set their ranges to 20km which is way above their target locking range and especially engagement range.

AN/MPQ-49
Maximum

Detection

Range

Minimum

Detection

Range

Max Azimuth

Scan Angle

Max Elevation

Scan Angle

Minimum

Relative

Speed

40,000 m 100 m 360° 17° 10m/s (34km/h)
Msg-info.png Locking a target through sniper mode is not needed anymore as long as the target to be destroyed is detected and selected from the search radar while turret is pointed within 200 degrees to the target.

Pros and cons

Pros:

  • Twin stabilized 40 mm M266 cannon (L/70 40 mm Bofors) have a much higher rate of fire compared to the M42 Duster: Deadlier and more accurate
  • Large ammunition count ensures that you will have plenty to fire throughout a match without fear of running out of ammo mid-game
  • Has access to 12 x 66 mm smoke grenades, perfect for exiting a dangerous situation
  • The M822 ammunition is proximity fused and will detonate if the projectile passes close enough to the target
  • The 40 mm's pose a serious threat to lightly-armoured vehicles
  • Uses the M48 Patton's hull (armour included) = one of the best-protected SPAA in the game
  • Benefits in realistic battles from aim-assistance thanks to the radar
  • Has access to night-vision devices for use in night battles
  • Large radar sweep range to easily spot targets, as well as a large radar lock-on marker in its scope
  • Has the furthest search radar range even when compared to 10.0 SPAAGs

Cons:

  • As with all high-rank SPAA, the M247 has very thin turret armour; a shell strike could instantly end the vehicle
    • Turret is also vulnerable to strafing aircraft + rockets
  • Armour advantages are nullified due to the inclusion of the Hull Break mechanic
  • No thermal sights
  • Search radar cannot be folded

History

The M247 "Sergeant York" was designed in the late 1970's as a purpose-built SPAAG. It was designed to fight alongside the M1 Abrams and M2/M3 Bradley, in order to provide cover against aircraft. There were other SPAA vehicles in service at the time; these were the M163 Vulcan and the MIM-72/M48 Chaparral. The former being a 20 mm rotary cannon mounted on an armored personnel carrier, and the latter being a heavily modified armored personnel carrier chassis with a surface-to-air missile launcher. Neither of those two vehicles were designed as SPAA's, and so, did not have the necessary performance to be adequate at their job. The M247 was designed as a replacement for both of the previous vehicles.

Designs from a multitude of companies were entered into the competition. Only two were selected for testing: the Ford XM-247 with twin Bofors 40mm cannons and the General Dynamics XM-246 with twin Oerlikon 35mm cannons. The two prototypes were tested, and the XM-247 was selected as the winner, although the XM-246 had outscored it in all the shooting tests. The M247, as it was soon designated, ran into many problems. The radar was extremely deficient; it had a hard time distinguishing trees from planes, and if the guns were pointed too high, they would get in the radar's way and confuse it even more. In addition, it took too long for the radar to pick up a target and for the guns to actually take aim. In addition, the turret traverse speed was much too slow, the vehicle it's self was too sluggish to keep up the M1's and M2's, and it was unreliable in cold weather. Eventually, the program was cancelled after more testing, where it was proven the system could not even shoot down stationary drones. There was still a need for an anti-aircraft vehicle that could keep up with modern vehicles, so Oerlikon Canada created the ADATS anti-aircraft missile system. This was not as successful as hoped, and was only accepted into Canadian service. The void was eventually filled by the M6 Linebacker, an M2 Bradley with Stinger missiles instead of TOW missiles. The Linebacker was capable of keeping up with modern armored forces, which was the reason for its acceptance, even though the Stingers were not as effective as the ADATS missiles[1].

Media

Skins and camouflages for the M247 Sergeant York from live.warthunder.com.

See also

External links


USA anti-aircraft vehicles
M3 Half-track derivatives  M13 MGMC · M15 CGMC · M16 MGMC
M24 derivative  M19A1
M41 derivative  M42
Radar SPAAG  M163 · M247
Missile SPAA  Imp.Chaparral · LAV-AD · XM975

  1. ↑ https://en.wikipedia.org/wiki/M247_Sergeant_York
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