G.91 R/4 (Germany)

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Revision as of 10:08, 28 May 2020 by Aziie (talk | contribs) (Armaments)

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▀G.91 R/4
General characteristics
1 personCrew
5.8 tTake-off weight
3.47 kg/sBurst mass
Flight characteristics
11 000 mCeiling
Bristol Orpheus MK.803Engine
airCooling system
Speed of destruction
1128 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
38 x FFAR Mighty Mouse rocketsSetup 1
2 x AA-20 Nord air-to-air missilesSetup 2
2 x AS-20 Nord ATGMSetup 3
4 x AIM-9B Sidewinder air-to-air missilesSetup 4
2 x 500 lb AN-M64A1 bombSetup 5
8 910 Ge icon.pngPurchase
Sl icon.png2 770/1 940/1 300Repair
10 000 Sl icon.pngCrew training
1 640 000 Sl icon.pngExperts
2 400 Ge icon.pngAces
220 × 2 Talisman.png % Rp icon.pngReward for battle
220 × 2 Talisman.png % Sl icon.png180 × 2 Talisman.png % Sl icon.png100 × 2 Talisman.png % Sl icon.png


GarageImage G.91 R4 (Germany).jpg

The ▀G.91 R/4 is a premium rank V German jet fighter with a battle rating of 9.0 (AB/SB) and 8.7 (RB). It was introduced in Update "Starfighters".

The R/4 is a variant of the G.91 jet fighter that has been modified for ground attack, allowing it access to a competitive selection of air-to-ground ordnance such as bombs, rockets, and high-explosive air-to-ground missiles. The R/4 also has the option to equip two different types of air-to-air missiles; the IR-tracking AIM-9B Sidewinder missile, or the command-guided AA-20 Nord missile.

The G.91 R/4 is a very nimble fighter with relatively average top speed and fairly good acceleration. Best played as a support fighter, the G.91 R/4 can use its incredible roll and turn rates to quickly get guns on target, as well as to dodge the typically less maneuverable fighters that it shares its battle ratings with.

The main difference between the R/3 and the R/4 is the armament choice. While the former has more powerful canons, it lacks the capability to mount air-to-air missiles while the later is the opposite, weaker machine guns but it is able to use air-to-air missiles.

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 3,100 kg (6,800 lbs) and a takeoff weight of 5,500 kg (12,100 lbs) the Gina is in the weight class as the P-51D and MiG-9, yet severely lighter than most other jets and losing about one and a half tonnes compared to the Sabre A.

Although only outputting a meagre 22 kN of thrust, this first look disadvantage is literally outweighed 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 (1,011 km/h, 921 ft/s) and self-destruct in level flight.

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

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

Characteristics Max Speed
(km/h at 0 m - sea level)
Max altitude
Turn time
Rate of climb
Take-off run
Stock 1,066 1,042 11 000 27.4 28.0 30.4 29.5 850
Upgraded 1,097 1,084 24.7 26.0 48.8 39


Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear Drogue chute
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
1128 345 620 620 345 ~10 ~4
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 800 < 650 < 660 N/A
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 800 < 650 < 660 N/A

Engine performance

Engine Aircraft mass
Engine name Number Empty mass Wing loading (full fuel)
Bristol Orpheus MK.803 1 3,477 kg 289 kg/m2
Engine characteristics Mass with fuel (no weapons load) Max Takeoff
Weight (each) Type 9m fuel 20m fuel 30m fuel 32m fuel
380 kg Axial-flow turbojet 3,837 kg 4,269 kg 4,662 kg 4,740 kg 5,800 kg
Maximum engine thrust @ 0 m (RB / SB) Thrust to weight ratio @ 0 m (101%)
Condition 100% 101% 9m fuel 20m fuel 30m fuel 32m fuel MTOW
Stationary 2,212 kgf 2,234 kgf 0.58 0.52 0.48 0.47 0.39
Optimal 2,212 kgf
(0 km/h)
2,234 kgf
(0 km/h)
0.58 0.52 0.48 0.47 0.39

Survivability and armour

  • 40 mm Bulletproof glass in front of the pilot
  • 6.5 mm Steel plate, starts in the pilot's seat, goes below the pilot, ends in front of the pilot
  • 6.5 mm Steel plate below a fuel tank in the centre-front of the fuselage
  • 6.5 mm Steel plate below a fuel tank in the centre-rear of the fuselage

Though the G.91 R/4 does have a decent amount of armour spaced out between the centre and front of the fuselage, the steel plates will only be sufficient to protect the pilot and aircraft from lower calibre fire (7.92 mm to 7.62 mm machine guns will only penetrate at very close ranges). And, thanks to the sacrifices made to lighten the aircraft, the airframe is not particularly reinforced. The wings are very thin, and susceptible to being out-right broken off by most-all primary armaments the G.91 will face at its tier, and the fuselage is full of juicy fuel tanks as well as the single engine of the R/4. Even more so than most planes, the G.91 R/4 is not capable of taking any hits. Even low calibre fire, such as that from .50 calibre machine guns, can cripple an R/4 nigh-immediately, and necessitate an immediate return-to-base.


Offensive armament

Main article: Browning M3 (12.7 mm)

The G.91 R/4 (Germany) is armed with:

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

The M3 Browning is a new weapon in the German 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 damper 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 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.

No matter how you turn it, the armament is only manageable with skill and outright bad for a beginner.

Suspended armament

The G.91 R/4 (Germany) can be outfitted with the following ordnance:

  • Without load
  • 38 x FFAR Mighty Mouse rockets
  • 2 x AA-20 missiles
  • 2 x AS-20 missiles
  • 4 x AIM-9B missiles
  • 2 x 500 lb AN-M64A1 bombs (1,000 lb total)

Featuring a wide range of ordnance the G.91 R/3 can be equipped for any role from ground to air combat, though it prefers air superiority.

For air-to-ground purposes, the G.91 R/4 is similar to the G.91 R/3, both its predecessor, in loadout options sharing the same FFAR Mighty Mouse rocket option as well as the choice of a pair of 500 lb bombs. However, the G.91 R/4 can only carry 2 x AS-20 Nord air-to-ground missile, unlike its predecessor's capability of 4.

Air-to-air ordnance selection is where the G.91 R/4 stands out from its brethren; the G.91 R/4 is one of only two jets in-game (alongside the Super Mystére B.2) to have the option of loading the unique AA-20 Nord air-to-air missiles; keyboard guided missiles with a 15 metre proximity fuse. Unlike infrared-guided missiles in War Thunder, the AA-20 Nords do not warn targets of a missile launch giving R/4 pilots the element of surprise, and the Nord's proximity fuse increases the chance of long-range launches striking a target as well as successful head-ons, though these perks come at the demand of a much higher skill floor for usage.

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).


Tier Flight performance Survivability Weaponry
This is a premium vehicle: all modifications are unlocked on purchase

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".




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: https://wiki.warthunder.com/(Vehicle-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under === In-game description ===, also if applicable).


Excellent additions to the article would be video guides, screenshots from the game, and photos.

See also

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.

External links

Paste links to sources and external resources, such as:

  • topic on the official game forum;
  • encyclopedia page on the aircraft;
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Germany jet aircraft
Ar 234  Ar 234 B-2 · Ar 234 C-3
He 162  He 162 A-1 · He 162 A-2
Ho 229  Ho 229 V3
Me 163  Me 163 B · Me 163 B-0
Me 262  Me 262 A-1a · Me 262 A-1a/U1 · Me 262 A-1/U4 · Me 262 A-2a · Me 262 C-1a · Me 262 C-2b
USA  CL-13A Mk 5 · CL-13B Mk.6 · ▀F-86K · F-104G
USSR  ▀MiG-15bis · ▀MiG-19S · ▀MiG-21MF
Britain  Sea Hawk Mk.100
Italy  ▀G.91 R/3 · ▀G.91 R/4

Germany premium aircraft
Fighters  He 51 B-2/H · He 112 B-1/U2 · He 112 B-2/U2 · Flegel's Bf 109 A · Bf 109 E-7/U2 · Bf 109 G-2 · Fw 190 C · Fw 190 D-13
  ▀Marcolin's C.R.42 CN · ▀Hawk H-75A-2 · ▀Yak-1B · ▀La-5FN · ▀P-47D · ▀Tempest Mk V
Twin-engine fighters  Bf 109 Z · Bf 110 C-6 · Do 335 B-2 · He 219 A-7 · Ju 388 J · Ta 154 A-1
Jet fighters  Sea Hawk Mk.100 · ▀G.91 R/4
Attackers  Hs 129 B-2 (Romania) · ▀IL-2 (1942)
Bombers  ▀Wellington Mk Ic · BV 238 · Fw 189 A-1 · Ju 288 C