Difference between revisions of "G.91 pre-serie"

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{{About
 
{{About
 
| about = Italian jet fighter '''{{PAGENAME}}'''
 
| about = Italian jet fighter '''{{PAGENAME}}'''
| usage = other uses
+
| usage = similar playstyle
| link = G.91 (Family)
+
| link-1 = G.91 R/1
 +
| and
 +
| link-2 = G.91 (Family)
 
}}
 
}}
  
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[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]]
 
[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]]
 
{{break}}
 
{{break}}
The '''{{Specs|name}}''' is a rank {{Specs|rank}} Italian jet fighter {{Battle-rating}}. It was introduced in [[Update 1.69 "Regia Aeronautica"]] along with the initial Italian aviation tree.
+
The '''{{Specs|name}}''' (nicknamed ''"Gina"'') is a rank {{Specs|rank}} Italian jet fighter {{Battle-rating}}. It was introduced in [[Update 1.69 "Regia Aeronautica"]] along with the initial Italian aviation tree.<br>
 +
 
 +
A mid 50's Trans-sonic fighter ( < Mach 0.98) with ground attack abilities. Very maneuverable, but with a light offensive armament makes the G.91 with its young age a difficult starter aircraft into the jet era. Especially as it will fly in fierce competition in the sky, facing every sub- and trans-sonic aircraft and being smack in the middle performance wise.<br>
 +
 
 +
There are little changes between the Pre-serie, [[G.91 R/1|R/1]], [[G.91 R/3|R/3]] and the [[G.91 R/4|R/4]], and this guide can be considered universal for all listed aircraft.
  
 
== General info ==
 
== General info ==
 
=== Flight Performance ===
 
=== Flight Performance ===
''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.''
+
<!-- ''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.'' -->
 +
The G.91 was intended to replace the [[F-86A-5|F-86A Sabre]] in German, Portuguese and Italian service and it shows.With an empty weight of only 3100 kg (6800 lbs) and a takeoff weight of 5500 kg (12100 lbs) the Gina is in the weight class as the [[P-51D-5|P-51D]] and [[MiG-9]], yet severly lighter than most other jets and losing about one and a half tonnes compared to the Sabre A.
 +
Although only outputting a meager 22 kN of thrust this first look dosadvantage is literally outweighted by the high thrust to weight ratio of 0.73 empty (0.41 full). This makes the Gina an excellent dogfighter as jet fighters maintain both their top speed, climb and sustained turn-rate by their engine power rather than other flight characteristics. It can easily reach its own terminal speed (1011 km/h, 921 f/s) and self-destruct in level flight.<br>
 +
 
 +
Lacking in straight wings and leading wing slats the stall speed for the G.91 is quite higher than the low weight lets one assume. One should hence be wary of many older jet types with said features, as after bleeding too much speed they can easily out maneuver the Gina.
 +
 
 +
Starting with 20 min of fuel, gaining the climb speed of 800 km/h IAS (sustainable @ 7-8°; 730 f/s) takes a mere ~80 seconds with 20 predicated for taking off at 230 km/h or 210 f/s IAS. An Immelmann at 800 km/h will gain 1000 m and loose 300 km/h. A hard 180° turn at the same speed takes >100 km/h and may lose up to 60 m.
  
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
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=== Survivability and armour ===
 
=== 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.'' -->
 
<!-- ''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.'' -->
 +
At its tier there is little which cannot hurt the G.91. This is mostly due to the large calibres and fast firing weapons found in the jet age, although the Gina does not help this issue. The armour is enough to withstand the occasional tank LMG fire, but otherwise will only protect the pilot from shrapnel damage. Even though the centerline arrangement of all components proves to be quite survivable in combat, it does NOT lend itself for head-ons or prolongued chases. The former only leads to functional aircraft with a dead pilot and the latter to the reverse, which was in all likelihood the intended design in real life.
  
 
* 6.5 mm Steel - Behind, below and in front of the pilot
 
* 6.5 mm Steel - Behind, below and in front of the pilot
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=== Offensive armament ===
 
=== 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.'' -->
 
<!-- ''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.'' -->
 +
The M3 Browning is a new weapon in the Italian arsenal at this 5th tier and compared to the previous experiences a let down. The rate of fire is phenomenal, but the small calibre and ammo size put a serious demper to the mood, that is in comparison of course. In practise and with good aim, it can easily shred four fighters. The high bullet velocity and fire rate is quite the advantage in the fast pace world of jet combat, ensuring hits in deflection shots were the lower rate of fire found in the [[Category:Fifth_rank_aircraft|Soviet jet fighters]] might have failed the pilot.
 +
Yet one will always look onto greener pastures, especially as the Gina only has four guns unlike all other Browning armed jets.<br>
 +
No matter how you turn it, the armament is only managable with skill and for a beginner outright bad.
 +
 
{{main|Browning M3 (12.7 mm)}}
 
{{main|Browning M3 (12.7 mm)}}
  
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=== Suspended armament ===
 
=== 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.'' -->
 
<!-- ''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.'' -->
 +
Mediocre. The G.91 is a fighter and it shows in the additional payloads. They should only be considered for a quick drop on the way to the combat zone, losing height/speed advantage in doing so, or once aerial dominance has already accomplished. Even then many other jets are way better suited for ground attacks.<br>
 +
The bombs are standard fare and often not worse the hassle with their low total yield. The FFAR rockets are a far better option allowing to tackle more than one target, even though they only work well against soft target and upto medium tanks.
 +
 
{{main|AN-M64A1 (500 lb)|FFAR Mighty Mouse}}
 
{{main|AN-M64A1 (500 lb)|FFAR Mighty Mouse}}
  
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== 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 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).''-->
 +
Air superiority is the combat objective for the G.91 ''Gina'', anything else is secondary. In team games lure enemy fighters into extensive and excessive dogfights to allow your heavier and less nimble allies to [[Boom and Zoom Jets|Boom and Zoom]] or [[Boom and Run Jets|Boom and Run]] them. With their great thrust to weight ratio the G.91 can maintain their energy superiority and in emergencies (such as non-existant teamplay) to disengage. Alternatively standard BnZ is considerable choice. Again the great acceleration allows for more energy expensive maneuvers and still disengage without much worry from the target. Such follies would be deadly in many other fighters, but the Gina is hence quite forgiving. In fact too forgiving, new pilots to the jet age need to lose old habits and the G.91 does not force one's hand.<br>
 +
 
 +
Against bombers and ground attack craft the G.91 lacks fire power and it will take considerable ammo use to compensate for this. The measly protection against defensive fire makes this a dangerous task anyway and should thusly be left for better equipped allies.<br>
 +
 
 +
The very same can be said for ground attacks. While being able to mount air-to-ground ordnance, the payload yield is miniscule. The FFAR pods are the only worthwhile consideration, but run against the G.91's intended role of Air Superiority Fighter.
 +
 
  
 
=== Manual Engine Control ===
 
=== Manual Engine Control ===
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|-
 
|-
 
|}
 
|}
 
+
A focus should be done on the engine modules, as the G.91 lives by its T/W ratio. New boosters is a double edged sword, as without the G-Suit one is just black out earlier. This oddly makes the Bomb unlock a tantalizing choice, especially in already won matches for farming on ground units before the game ends. Airframe and cover do little, the weight savings are very minor and without them the G.91 can still easily reach top speeds and rip off its wings...
 
=== 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 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".'' -->
 
<!-- ''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".'' -->
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'''Pros:'''
 
'''Pros:'''
  
* Great turn time for a jet; can give the MiG-15 a run for its money
+
* Low weight, High thrust to weight ratio
 +
** Great turn time for a jet; can give the MiG-15 a run for its money
 +
** Great acceleration and climb rate
 
* 4 x M3 machine guns can be deadly if aimed correctly and used in close range
 
* 4 x M3 machine guns can be deadly if aimed correctly and used in close range
* Shares some payload options with the F-86 Sabre
 
  
 
'''Cons:'''
 
'''Cons:'''
  
* High rate of fire means you have to be conservative with your ammo
+
* Short burst time due to low ammo count
* Bleeds a lot of speed in a full elevator turn
+
* Limited ground attack abilities
* Can rip its wings off if you pull full elevator past 800 kph
+
* Bleeds off a lot of speed in a full elevator turn
 +
* Can rip its wings off if you pull full elevator past 800 km/h
  
 
== History ==
 
== History ==
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== 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.''-->
 +
{{Youtube-gallery|xnSwBP_D3aw|'''"How to fly the Fiat G.91R/1"''' by ''McChickenBites''|tCiqB569rTg|'''"The G.91 Is The Most Braindead Jet To Fly... But It's Still Fun"''' by ''SPITflyer''}}
 +
* [https://live.warthunder.com/post/624545/en/ Skin of the Week: June Week 3-4 2017! Fiat G.91 PAN M.M. 6244, 313° Gruppo Addestramento Acrobatico, Pattuglia Acrobatica Nazionale Frecce Tricolori, 1964 – 1981. - by ''Sonoda_Kotori'']
 +
* [https://live.warthunder.com/post/689435/en/ Skin: G.91 Vento Tricolore by ''Zaryulenko'']
  
 
== 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;''
+
* [[F-86A-5|F-86A-5 Sabre]] - combat role predecessor
* ''links to approximate analogues of other nations and research trees.''
+
* [[La-15]] and [[Yak-30]] - similar flight style
 +
* [[G.91 (Family)]]
  
 
== 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;''
+
* [https://forum.warthunder.com/index.php?/topic/363988-fiat-g91-discussion-thread/ WT Forum: Fiat G.91 discussion thread]
* ''encyclopedia page on the aircraft;''
+
* [https://forum.warthunder.com/index.php?/topic/364977-fiat-g91-preserie/ WT Forum: Flight Model Data Sheet]
* ''other literature.''
+
* [https://en.wikipedia.org/wiki/Fiat_G.91 en.wikipedia entry]
 +
<!--* ''other literature.''-->
  
 
{{Italy jet aircraft}}
 
{{Italy jet aircraft}}

Revision as of 17:15, 31 October 2019

G.91 pre-serie
fiat_g91_ps.png
AB
RB
SB
General characteristics
Brief
Detailed
8.3/8.7/8.3BR
1 personCrew
5.8 tTake-off weight
Flight characteristics
Bristol Orpheus MK.801Engine
JetType
airCooling system
Speed of destruction
1011 km/hStructural
345 km/hGear
Offensive armament
4 x 12.7 mm M3 Browning machine gunWeapon 1
1 200 roundsAmmunition
1 200 shots/minFire rate
Suspended armament
2 x 500 lb AN-M64A1 bombSetup 1
38 x FFAR Mighty Mouse rocketsSetup 2
Economy
99 000 Rp icon.pngResearch
390 000 Sl icon.pngPurchase
Sl icon.png8 390 / 11 318/8 800 / 11 871/2 700 / 3 642Repair
110 000 Sl icon.pngCrew training
390 000 Sl icon.pngExperts
1 800 Ge icon.pngAces
× (202) % Rp icon.pngReward for battle
× 3.2 Sl icon.png× 2.5 Sl icon.png× 1.4 Sl icon.png
This page is about the Italian jet fighter G.91 pre-serie. For similar playstyle, see G.91 R/1 and G.91 (Family).

Description

GarageImage G.91 pre-serie.jpg


The G.91 pre-serie (nicknamed "Gina") is a rank V Italian jet fighter with a battle rating of 8.3 (AB/SB) and 8.7 (RB). It was introduced in Update 1.69 "Regia Aeronautica" along with the initial Italian aviation tree.

A mid 50's Trans-sonic fighter ( < Mach 0.98) with ground attack abilities. Very maneuverable, but with a light offensive armament makes the G.91 with its young age a difficult starter aircraft into the jet era. Especially as it will fly in fierce competition in the sky, facing every sub- and trans-sonic aircraft and being smack in the middle performance wise.

There are little changes between the Pre-serie, R/1, R/3 and the R/4, and this guide can be considered universal for all listed aircraft.

General info

Flight Performance

The G.91 was intended to replace the F-86A Sabre in German, Portuguese and Italian service and it shows.With an empty weight of only 3100 kg (6800 lbs) and a takeoff weight of 5500 kg (12100 lbs) the Gina is in the weight class as the P-51D and MiG-9, yet severly lighter than most other jets and losing about one and a half tonnes compared to the Sabre A. Although only outputting a meager 22 kN of thrust this first look dosadvantage is literally outweighted by the high thrust to weight ratio of 0.73 empty (0.41 full). This makes the Gina an excellent dogfighter as jet fighters maintain both their top speed, climb and sustained turn-rate by their engine power rather than other flight characteristics. It can easily reach its own terminal speed (1011 km/h, 921 f/s) and self-destruct in level flight.

Lacking in straight wings and leading wing slats the stall speed for the G.91 is quite higher than the low weight lets one assume. One should hence be wary of many older jet types with said features, as after bleeding too much speed they can easily out maneuver the Gina.

Starting with 20 min of fuel, gaining the climb speed of 800 km/h IAS (sustainable @ 7-8°; 730 f/s) takes a mere ~80 seconds with 20 predicated for taking off at 230 km/h or 210 f/s IAS. An Immelmann at 800 km/h will gain 1000 m and loose 300 km/h. A hard 180° turn at the same speed takes >100 km/h and may lose up to 60 m.

Characteristics
Stock
Max Speed
(km/h at 1,200 m)
Max altitude
(meters)
Turn time
(seconds)
Rate of climb
(meters/second)
Take-off run
(meters)
AB RB AB RB AB RB
1,043 1,014 27.4 28.0 31 29.9 850
Upgraded
Max Speed
(km/h at 1,200 m)
Max altitude
(meters)
Turn time
(seconds)
Rate of climb
(meters/second)
Take-off run
(meters)
AB RB AB RB AB RB
 ???  ???  ??.?  ??.?  ??.?  ??.? 850

Details

Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear
X
Limits
Wing-break speed
(km/h)
Gear limit
(km/h)
Combat flaps
(km/h)
Max Static G
+ -
620 ~10 ~5
Optimal velocities
Ailerons
(km/h)
Rudder
(km/h)
Elevators
(km/h)
Radiator
(km/h)
< 800 < 650 < 660 N/A
Compressor (RB/SB)
Setting 1
Optimal altitude 100% Engine power WEP Engine power
0 m 2,140 kgf N/A

Survivability and armour

At its tier there is little which cannot hurt the G.91. This is mostly due to the large calibres and fast firing weapons found in the jet age, although the Gina does not help this issue. The armour is enough to withstand the occasional tank LMG fire, but otherwise will only protect the pilot from shrapnel damage. Even though the centerline arrangement of all components proves to be quite survivable in combat, it does NOT lend itself for head-ons or prolongued chases. The former only leads to functional aircraft with a dead pilot and the latter to the reverse, which was in all likelihood the intended design in real life.

  • 6.5 mm Steel - Behind, below and in front of the pilot
  • 6.5 mm Steel - under central fuel tanks.
  • 40 mm bulletproof glass - Armored windshield
  • Critical components located down the midline of aircraft (fuel, pilot, engine, controls)
  • Fuel tanks located in the central fuselage.

Armaments

Offensive armament

The M3 Browning is a new weapon in the Italian arsenal at this 5th tier and compared to the previous experiences a let down. The rate of fire is phenomenal, but the small calibre and ammo size put a serious demper to the mood, that is in comparison of course. In practise and with good aim, it can easily shred four fighters. The high bullet velocity and fire rate is quite the advantage in the fast pace world of jet combat, ensuring hits in deflection shots were the lower rate of fire found in the might have failed the pilot. Yet one will always look onto greener pastures, especially as the Gina only has four guns unlike all other Browning armed jets.
No matter how you turn it, the armament is only managable with skill and for a beginner outright bad.

Main article: Browning M3 (12.7 mm)

The G.91 pre-serie is armed with:

  • 4 x 12.7 mm Browning M3 machine guns, nose-mounted (300 rpg = 1,200 total)

Suspended armament

Mediocre. The G.91 is a fighter and it shows in the additional payloads. They should only be considered for a quick drop on the way to the combat zone, losing height/speed advantage in doing so, or once aerial dominance has already accomplished. Even then many other jets are way better suited for ground attacks.
The bombs are standard fare and often not worse the hassle with their low total yield. The FFAR rockets are a far better option allowing to tackle more than one target, even though they only work well against soft target and upto medium tanks.

The G.91 pre-serie can be outfitted with the following ordnance:

  • Without load
  • 2 x 500 lb AN-M64A1 bombs (1,000 lb total)
  • 38 x FFAR Mighty Mouse rockets

Usage in battles

Air superiority is the combat objective for the G.91 Gina, anything else is secondary. In team games lure enemy fighters into extensive and excessive dogfights to allow your heavier and less nimble allies to Boom and Zoom or Boom and Run them. With their great thrust to weight ratio the G.91 can maintain their energy superiority and in emergencies (such as non-existant teamplay) to disengage. Alternatively standard BnZ is considerable choice. Again the great acceleration allows for more energy expensive maneuvers and still disengage without much worry from the target. Such follies would be deadly in many other fighters, but the Gina is hence quite forgiving. In fact too forgiving, new pilots to the jet age need to lose old habits and the G.91 does not force one's hand.

Against bombers and ground attack craft the G.91 lacks fire power and it will take considerable ammo use to compensate for this. The measly protection against defensive fire makes this a dangerous task anyway and should thusly be left for better equipped allies.

The very same can be said for ground attacks. While being able to mount air-to-ground ordnance, the payload yield is miniscule. The FFAR pods are the only worthwhile consideration, but run against the G.91's intended role of Air Superiority Fighter.


Manual Engine Control

MEC elements
Mixer Pitch Radiator Supercharger Turbocharger
Oil Water Type
Not controllable Not controllable
Not auto controlled
Not controllable
Auto control available
Not controllable
Auto control available
Separate Not controllable
1 gear
Not controllable

Modules

Tier Flight performance Survivability Weaponry
I Fuselage repair Compressor Offensive 12 mm
II New boosters Airframe SBC-17
III Wings repair Engine New 12 mm MGs
IV G-suit Cover FFAR Mighty Mouse

A focus should be done on the engine modules, as the G.91 lives by its T/W ratio. New boosters is a double edged sword, as without the G-Suit one is just black out earlier. This oddly makes the Bomb unlock a tantalizing choice, especially in already won matches for farming on ground units before the game ends. Airframe and cover do little, the weight savings are very minor and without them the G.91 can still easily reach top speeds and rip off its wings...

Pros and cons

Pros:

  • Low weight, High thrust to weight ratio
    • Great turn time for a jet; can give the MiG-15 a run for its money
    • Great acceleration and climb rate
  • 4 x M3 machine guns can be deadly if aimed correctly and used in close range

Cons:

  • Short burst time due to low ammo count
  • Limited ground attack abilities
  • Bleeds off a lot of speed in a full elevator turn
  • Can rip its wings off if you pull full elevator past 800 km/h

History

Winner of the 1953 NATO light tactical support aircraft competition, the Fiat "Small Sabre" would be in production for 19 years, with 756 aircraft completed, with the last aircraft produced in 1977. It served in the Italian and West German air forces starting in 1961 and 1962 respectively.

The original competition specifications called for a jet able to carry 450 kg of ordnance with an operational radius of 180 km, assuming 10 minutes over the target, with a maximum speed of at least Mach 0.95 and a takeoff distance of no more than 1100m, on unprepared or grass runways. Eight aircraft competed in the first round, including the French Dassault Etendard (then called the Mystere XXVI) and the British Folland Gnat. The Etendard, the G.91 and a Breguet design were selected for the second round beginning in late 1957. Fiat went ahead with pre-production ("pre-serie" in Italian) aircraft, with first flight in August, 1956, seven months ahead of its competitors. The crash of the first prototype due to aeroclastic vibrations in February, 1957, proved a setback, but the G.91 entered the second round as scheduled and was announced as the winner in January, 1958.

Critics said Fiat had just copied the F-86 Sabre, which it was manufacturing under license, but these claims seem unwarranted. Operational service evaluations with the Italian air force's 103 Squadron ran from February to July, 1959, leading to a West German decision to manufacture the aircraft under license.

Media

"How to fly the Fiat G.91R/1" by McChickenBites
"The G.91 Is The Most Braindead Jet To Fly... But It's Still Fun" by SPITflyer

See also

External links


Italy jet aircraft
Fiat  G.91 pre-serie · G.91 R/1 · G.91 R/4 · G.91 YS
Other countries  ▄F-84G-21-RE · Vampire FB 52A · CL-13 Mk.4 · ▄F-86K