D.521 (Great Britain)

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Rank VI USSR | Premium | Golden Eagles
Su-25K Pack
This page is about the gift British fighter D.521 (Great Britain). For other versions, see D.520 (Family).
▄D.521
d_521.png
GarageImage D.521 (Great Britain).jpg
▄D.521
AB RB SB
3.3 3.0 2.7
Class:
Show in game

Description

The ▄D.521 is a gift rank II British fighter with a battle rating of 3.3 (AB), 3.0 (RB), and 2.7 (SB). It was introduced in the game during the Open Beta session as a reward vehicle for the June 2013 "Vive la Liberté!" video contest and again for the 2014 "First Flight of Dewoitine D.520" event. The D.521 was a modified variant of the French Dewoitine D.520 which featured a Rolls Royce Merlin III engine and slight armament changes. Only one model was ever produced.

The D.521 is essentially a slightly improved version of the D.520. It has a somewhat improved engine (Rolls-Royce Merlin III) which constitutes the one major change. It does however have a slightly worse turn and climb rate which may be due to the added weight of said engine. At either rate, tactically, it is advised that you have good knowledge of the various aircraft's you will face as it does not excel at any one thing. By applying situational awareness and a degree of caution to your approach, you may find yourself to be quite successful with this machine, but regardless of if you approach this in Arcade or Realistic battles, you need to have a good idea about the aircraft you are likely to face in the battle rating of this aircraft.

General info

Flight performance

Max speed
at 6 500 m570 km/h
Turn time21 s
Max altitude12 000 m
EngineRolls-Royce Merlin-III
TypeInline
Cooling systemWater
Take-off weight3 t
Characteristics Max Speed
(km/h at 6,500 m)
Max altitude
(metres)
Turn time
(seconds)
Rate of climb
(metres/second)
Take-off run
(metres)
AB RB AB RB AB RB
Stock 548 536 12000 22.4 22.9 5.8 7.3 310
Upgraded 594 570 19.6 21.0 16.0 10.0

Details

Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear
X X
Limits
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
800 340 385 365 280 ~10 ~9
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 400 < 430 < 460 > 330

Survivability and armour

Crew1 person
Speed of destruction
Structural0 km/h
Gear340 km/h
  • No armour plating
  • No armour glazing
  • Critical components located at the front of aircraft (fuel, pilot, engine, controls)
  • More fuel tanks located in wings near the fuselage

Modifications and economy

Repair costBasic → Reference
AB590 → 802 Sl icon.png
RB1 232 → 1 675 Sl icon.png
SB1 665 → 2 264 Sl icon.png
Total cost of modifications10 380 Rp icon.png
13 730 Sl icon.png
Talisman cost750 Ge icon.png
Crew training6 300 Sl icon.png
Experts22 000 Sl icon.png
Aces250 Ge icon.png
Research Aces220 000 Rp icon.png
Reward for battleAB / RB / SB
40 / 100 / 200 % Sl icon.png
124 / 124 / 124 % Rp icon.png
Modifications
Flight performance Survivability Weaponry
Mods aerodinamic fuse.png
Fuselage repair
Research:
690 Rp icon.png
Cost:
910 Sl icon.png
105 Ge icon.png
Mods radiator.png
Radiator
Research:
690 Rp icon.png
Cost:
910 Sl icon.png
105 Ge icon.png
Mods armor frame.png
Airframe
Research:
780 Rp icon.png
Cost:
1 000 Sl icon.png
115 Ge icon.png
Mods compressor.png
Compressor
Research:
780 Rp icon.png
Cost:
1 000 Sl icon.png
115 Ge icon.png
Mods aerodinamic wing.png
Wings repair
Research:
870 Rp icon.png
Cost:
1 200 Sl icon.png
130 Ge icon.png
Mods new engine.png
Engine
Research:
870 Rp icon.png
Cost:
1 200 Sl icon.png
130 Ge icon.png
Mods armor cover.png
Cover
Research:
840 Rp icon.png
Cost:
1 100 Sl icon.png
125 Ge icon.png
Mods metanol.png
Engine injection
Research:
840 Rp icon.png
Cost:
1 100 Sl icon.png
125 Ge icon.png
Mods engine extinguisher.png
EFS
Research:
840 Rp icon.png
Cost:
1 100 Sl icon.png
125 Ge icon.png
Mods ammo.png
7_5mm_belt_pack
Research:
690 Rp icon.png
Cost:
910 Sl icon.png
105 Ge icon.png
Mod arrow 0.png
Mods weapon.png
mac39_new_gun
Research:
780 Rp icon.png
Cost:
1 000 Sl icon.png
115 Ge icon.png
Mods ammo.png
hispano_belt_pack
Research:
870 Rp icon.png
Cost:
1 200 Sl icon.png
130 Ge icon.png
Mod arrow 0.png
Mods weapon.png
hispano_404_new_gun
Research:
840 Rp icon.png
Cost:
1 100 Sl icon.png
125 Ge icon.png

Armaments

Offensive armament

Ammunition60 rounds
Fire rate700 shots/min
Ammunition2 700 rounds
Fire rate1 350 shots/min

The D.521 (Great Britain) is armed with:

  • 1 x 20 mm Hispano 404 cannon, nose-mounted (60 rpg)
  • 4 x 7.5 mm MAC 1934 machine guns, wing-mounted (675 rpg = 2,700 total)

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).

Manual Engine Control

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

Pros and cons

Pros:

  • 5 guns: one 20 mm 404 Hispano cannon near the nose of the aircraft and four 7.5 mm MAC 1934 machine guns in the wings
  • Plenty of ammo for the machine guns
  • Powerful nose-mounted 20 mm cannon
  • Good all round low tier fighter aircraft

Cons:

  • Neither very manoeuvrable or very fast
  • Very little ammo for the 20 mm cannon, limited to 60 shells
  • Relatively poor rate of climb

History


Archive of the in-game description

A single-seat monoplane fighter with an all-metal construction, closed cockpit and retractable landing gear with a tail wheel. Designed by the SNCAM (Société Nationale des constructions aéronautiques du Midi) company. The developmental prototype of the Dewoitine D.520-01 fighter took its maiden flight on 2 October 1938. Series production began at the SNCAM (later SNCASE) plant in Toulouse.

While perfecting the series-produced Dewoitine D.520 fighters, designers also worked to create new models of the same plane. In November 1939, work began on creating the Dewoitine D.521 model, equipped with the British liquid-cooled V12 Rolls-Royce Merlin Mk.III engine with a rated output of 1,030 hp. It was suggested that a fighter fitted with this engine could reach a maximum horizontal speed of 570 km/h.

Since an engine-mounted cannon could not be installed on the Rolls-Royce Merlin engine, two Hispano-Suiza H.S.404 cannons were mounted on the wings instead. This meant that all the Dewoitine D.521's weaponry was mounted on the wings, and consisted of two 20 mm Hispano-Suiza HS.404 drum magazine cannons with 60 shells each and four 7.5 mm Chatellerault MAC 1934 machine guns with 675 rounds each.

Note that precise information (primarily photographs) on the practical configuration of the Dewoitine D.521's Hispano-Suiza wing-mounted cannons is not available. For this reason, we can only make educated guesses about the fighter's armament structure.

One of the early series-produced Dewoitine D.520 fighters was selected to be adapted as the Dewoitine D.521-01 prototype. Its maiden flight took place on 9 February 1940. It had an improved climbing rate, but the Rolls-Royce Merlin engine was significantly heavier than the Hispano-Suiza 12Y installed on the series-produced planes, and this caused problems with the plane's center of gravity. Testing continued until March 1940. On the whole, the new plane failed to exceed the performance of the series-produced Dewoitine D.520s, and the Dewoitine D.521 project was closed.


Media

Skins

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;
  • other literature.


Dewoitine (SNCAM/SNCASE)
Fighters 
D.37  D.371 · D.371 H.S.9 · D.373
D.500  D.500 · D.501 · Pallier's D.510
D.520  D.520 · ▄D.520 · ▄D.521
Export  ␗D.510C

Britain fighters
Fury  Fury Mk I · Fury Mk II
Nimrod  Nimrod Mk I · Nimrod Mk II
Gladiator  Gladiator Mk II · Tuck's Gladiator Mk II · Gladiator Mk IIF · Gladiator Mk IIS
Sea Gladiator  Sea Gladiator Mk I
Hurricane  Hurricane Mk I/L · Hurricane Mk.I/L FAA M · Hurricane Mk IIB/Trop
Sea Hurricane  Sea Hurricane Mk IB · Sea Hurricane Mk IC
Martin-Baker  MB.5
Spitfire (early-Merlin)  Spitfire Mk Ia · Spitfire Mk IIa · Spitfire Mk.IIa Venture I · Spitfire Mk IIb · Spitfire Mk Vb/trop · Spitfire Mk Vb · Spitfire Mk Vc/trop · Spitfire Mk Vc
Spitfire (late-Merlin)  Spitfire F Mk IX · Spitfire LF Mk IX · Spitfire F Mk IXc · Plagis' Spitfire LF Mk IXc · Spitfire F Mk XVI
Spitfire (Griffon)  Spitfire F Mk XIVc · Spitfire F Mk XIVe · Prendergast's Spitfire FR Mk XIVe · Spitfire F Mk XVIIIe · Spitfire F Mk 22 · Spitfire F Mk 24
Seafire  Seafire LF Mk.III · Seafire F Mk XVII · Seafire FR 47
Typhoon  Typhoon Mk Ia · Typhoon Mk Ib · Typhoon Mk Ib/L
Tempest  Tempest Mk II · Tempest Mk V
Sea Fury  Sea Fury FB 11
Twin-engine fighters  Hornet Mk.I · Hornet Mk.III · Whirlwind Mk I · Whirlwind P.9
  Foreign:
Australia  ▄Boomerang Mk I · ▄Boomerang Mk II
France  ▄D.520 · ▄D.521
USA  ▄Martlet Mk IV · ▄Corsair F Mk II · ▄Hellcat Mk II · ▄Thunderbolt Mk.1 · ▄Mustang Mk IA