Whirlwind Mk I

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Whirlwind Mk I
General characteristics
1 personCrew
5.22 tTake-off weight
5.17 kg/sBurst mass
Flight characteristics
9144 mCeiling
2 х Rolls-Royce Peregrine IEngine
waterCooling system
Speed of destruction
676 km/hStructural
265 km/hGear
Offensive armament
4 x 20 mm Hispano Mk.I cannonWeapon 1
240 roundsAmmunition
600 shots/minFire rate
Suspended armament
2 x 250 LB G.P. Mk.IV bombSetup 1
2 x 500 LB G.P. Mk.IV bombSetup 2
46000 Rp icon.pngResearch
150000 Sl icon.pngPurchase
Sl icon.png5780 / 7253/6220 / 7806/2120 / 2660Repair
43000 Sl icon.pngCrew training
150000 Sl icon.pngExperts
820 Ge icon.pngAces
160 % Rp icon.pngReward for battle
300 % Sl icon.png390 % Sl icon.png110 % Sl icon.png
This page is about the British twin-engine fighter Whirlwind Mk I. For the other version, see Whirlwind P.9.


GarageImage Whirlwind Mk I.jpg

The Whirlwind Mk I is a rank IV British twin-engine fighter with a battle rating of 4.7 (AB), 3.7 (RB), and 4.0 (SB). It was introduced in Update 1.75 "La Résistance".

General info

Flight performance

Characteristics Max Speed
(km/h at 4,877 m)
Max altitude
Turn time
Rate of climb
Take-off run
Stock 559 543 9144 24.2 25.2 12.2 12.2 650
Upgraded 601 580 21.9 23.0 18.2 15.0


Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
676 265 490 490 265 ~11 ~5
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 420 < 420 < 450 > 324

Survivability and armour

  • 60 mm Bulletproof glass in cockpit front.
  • 9 mm Steel plates in the nose.
  • 4 mm Steel plate in pilot's seat.
  • 6 mm Steel plate behind the pilot.


Offensive armament

Main article: Hispano Mk.I (20 mm)

The Whirlwind Mk I is armed with:

  • 4 x 20 mm Hispano Mk.I cannons, nose-mounted (60 rpg = 240 total)

Suspended armament

The Whirlwind Mk I can be outfitted with the following ordnance:

  • Without load
  • 2 x 250 lb G.P. Mk.IV bombs (500 lb total)
  • 2 x 500 lb G.P. Mk.IV bombs (1,000 lb total)

Usage in battles

The Whirlwind Mk I should be used similarly to other heavy fighters. The flight characteristics are very similar to the Whirlwind P.9 with the main difference being significantly less ammo.

The Whirlwind Mk I is very effective in a boom and zoom role due to its good climb rate and powerful armament. However, the relatively low wing break speed in RB does limit you in this role. The Whirlwind Mk I has a good turn rate for a heavy fighter, but will be easily out turned by single-engined fighters. The use of combat flaps will help to balance out this disadvantage. Care must be taken when using the combat flaps, however, as they are prone to snapping off at a relatively low speed.

At this BR you will see many BV 238s and Me 264s. Heading on these bombers will usually guarantee you a kill, but you still need to be careful of the powerful defensive armament of them. The Whirlwind Mk I has relatively little ammunition with only 60 rounds per gun. It is important to be accurate to be successful with this aircraft. To help with accuracy try to get very close to the target before shooting.

Manual Engine Control

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


Tier Flight performance Survivability Weaponry
I Fuselage repair Radiator Offensive 20 mm SBC mk.II
II Compressor Airframe
III Wings repair Engine New 20 mm cannons MBC mk.II
IV Engine injection Cover

Pros and cons


  • Devastating nose-mounted 20mm Hispano armament.
  • Great for head-ons.
  • Good turn rate when upgraded for a twin engined fighter.
  • Able to carry bombs, unlike P.9 Variant


  • Poor climb rate.
  • Under-powered engines.
  • Drum-fed Hispano Mk1s. Only 60 rounds per gun. You must make every round count.
  • Inaccurate Hispano Mk1 cannons. Precise aiming is hard.
  • Poor roll rate
  • Quite slow level flight speed
  • Unfavourable matchmaking puts you up against some very challenging opponents
  • Hispano Mk 1 cannons do not have access to more effective air targets belt


The Westland Whirlwind was designed after a specification was issued by the British Air Ministry. The specification called for a cannon-armed day and night fighter. The Air Ministry wanted a top speed of at least 530 km/h at an altitude of 4,600m. Out of five designs offered by the companies. The Air Ministry decided to go with Westland's design for several important reasons. The cannon was mounted on the nose so that the recoil does not affect the accuracy of the gun. There were also no convergence problem as compared to other single-engine fighters with wing mounted guns. The requirements also led to the world's first bubble canopies on a plane. However the decision to arm the Spitfire with cannon and the development of other twin engine fighters such as the Bristol Beaufighter has led Fighter Command to use the Whirlwind less and less as the war progressed. The first batch of Rolls-Royce Peregrine engines were also delayed. It was also found that the engine was severely under-powered and the drum magazines used to feed the cannons were small in capacity. All of this has resulted in the Whirlwind's cancellation and resulted in the plane only equipping two RAF squadrons.


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;
  • other literature.

Westland Aircraft Limited
Fighters  Whirlwind Mk I · Whirlwind P.9
Turboprop  Wyvern S4
Attack  AH Mk.1**
Utility  Scout AH.Mk.1 · Lynx AH.Mk.1 · G-LYNX · Wasp HAS.Mk.1
  *After World War II, Westland Aircraft focused on building helicopters and changed its name to Westland Helicopters.
  **Licensed AH-64D
See Also  Boeing Aircraft

Britain strike and twin-engine fighters
Single-engined  Hurricane Mk IV · Tempest Mk V (Vickers P) · ▄Hellcat Mk II
Beaufighter  Beaufighter Mk VIc · Beaufighter Mk X · Beaufighter Mk 21
Naval  Firefly F Mk I · Firefly FR Mk V · Firebrand TF Mk IV
Mosquito  Mosquito FB Mk VI · Mosquito FB Mk XVIII
Whirlwind  Whirlwind Mk I · Whirlwind P.9
  Hornet Mk.III