Difference between revisions of "D.521 (Great Britain)"

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(Added basic information and tables.)
(Restored page from version archived 10-12-18. Again history section was non-existent so i borrowed the historical description from the game client.)
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{{break}}
 
{{break}}
 
The '''{{Specs|name}}''' is a Rank {{Specs|rank}} gift British fighter {{Battle-rating|5}}. This aircraft was introduced in the game during the Open Beta session during the 13 June 2013 event "[http://warthunder.com/en/news/172/current/ Vive la Liberté!]" and remains as an event vehicle today. 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 '''{{Specs|name}}''' is a Rank {{Specs|rank}} gift British fighter {{Battle-rating|5}}. This aircraft was introduced in the game during the Open Beta session during the 13 June 2013 event "[http://warthunder.com/en/news/172/current/ Vive la Liberté!]" and remains as an event vehicle today. 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. This is also reflected in it's battle rating in Arcade which stands at 3.7 rather than the 3.3 on the D.520, however in Realistic and Simulator Battles, it is in fact at 2.7 whilst the D.520 is at 3.0 respectively. 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 ==
 
== General info ==
 
=== Flight Performance ===
 
=== Flight Performance ===
Line 16: Line 18:
 
! colspan="8" | ''Stock''
 
! colspan="8" | ''Stock''
 
|-
 
|-
−
! colspan="2" | Max Speed<br>(km/h at ?,000 m)
+
! colspan="2" | Max Speed<br>(km/h at 6,500 m)
 
! rowspan="2" | Max altitude<br>(meters)
 
! rowspan="2" | Max altitude<br>(meters)
 
! colspan="2" | Turn time<br>(seconds)
 
! colspan="2" | Turn time<br>(seconds)
Line 22: Line 24:
 
! rowspan="2" |Take-off run<br>(meters)
 
! rowspan="2" |Take-off run<br>(meters)
 
|-
 
|-
−
! ABN1K2-J
+
! AB
 
! RB
 
! RB
 
! AB
 
! AB
Line 29: Line 31:
 
! RB
 
! RB
 
|-
 
|-
−
| ? || ? || {{Specs|ceiling}} || ??.? || ??.? || ??.? || ??.? || ???
+
|548
 +
|536|| {{Specs|ceiling}} ||22.4||22.9||5.8||7.3||310
 
|-
 
|-
 
! colspan="8" | ''Upgraded''
 
! colspan="8" | ''Upgraded''
 
|-
 
|-
−
! colspan="2" | Max Speed<br>(km/h at ?,000 m)
+
! colspan="2" | Max Speed<br>(km/h at 6,500 m)
 
! rowspan="2" |Max altitude (meters)
 
! rowspan="2" |Max altitude (meters)
 
! colspan="2" | Turn time (seconds)
 
! colspan="2" | Turn time (seconds)
Line 46: Line 49:
 
! RB
 
! RB
 
|-
 
|-
−
| ? || ? || {{Specs|ceiling}} || ??.? || ??.? || ??.? || ??.? || ???
+
|594||570|| {{Specs|ceiling}} ||19.6||21.0||16.0||10.0||310
 
|-
 
|-
 
|}
 
|}
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! Arrestor gear
 
! Arrestor gear
 
|-
 
|-
−
| X || X || X || X || X    <!-- ✓ -->
+
| ✓ || ✓ || ✓ || X || X    <!-- ✓ -->
 
|-
 
|-
 
|}
 
|}
Line 77: Line 80:
 
! -
 
! -
 
|-
 
|-
−
| {{Specs|разрушение|конструкции}} || {{Specs|разрушение|шасси}} || ??? || ~?? || ~?
+
| {{Specs|разрушение|конструкции}} || {{Specs|разрушение|шасси}} ||400|| ~18 || ~15
 
|-
 
|-
 
|}
 
|}
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! Radiator<br>(km/h)
 
! Radiator<br>(km/h)
 
|-
 
|-
−
| < ??? || < ??? || < ??? || > ???
+
| < 400 || < 430 || < 460 || > 250
 
|-
 
|-
 
|}
 
|}
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! WEP Engine power
 
! WEP Engine power
 
|-
 
|-
−
| ?,??? m || ??? hp || ?,??? hp  
+
| 4,953 m || 924 hp || 1,024 hp  
 
|-
 
|-
 
<!--! colspan="3" | Setting 2
 
<!--! colspan="3" | Setting 2
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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. Describe the armour, if there is any, 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. Describe the armour, if there is any, also mention the vulnerability of other critical aircraft systems.''-->
 +
 
* No armour plating
 
* No armour plating
 
* No armour glazing
 
* No armour glazing
Line 133: Line 137:
 
== Armaments ==
 
== Armaments ==
 
=== 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.''-->
−
{{main|MAC 1934 (7.5 mm)}}
+
 
 +
{{main|Hispano 404 (20 mm)|MAC 1934 (7.5 mm)}}
  
 
The '''''{{PAGENAME}}''''' is armed with:
 
The '''''{{PAGENAME}}''''' is armed with:
 +
* 1 x 20 mm Hispano 404 cannon, nose-mounted (60 rpg)
 +
* 4 x 7.5 mm MAC 1934 machine gun, wing-mounted (675 rpg = 2,700 total)
  
−
* 4 x 7.5 mm [[MAC 1934 (7.5 mm)|MAC 1934]] machine guns (300 rpg = 1,200 total)
 
−
-->
 
 
<!--=== 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.''-->
−
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;''Main article:&nbsp;'''[[:Category:Suspended armaments|Bombs]]'''''-->
 
 
<!--
 
<!--
 
=== Defensive armament ===
 
=== Defensive armament ===
Line 165: Line 169:
 
! Type  
 
! Type  
 
|-
 
|-
−
| Controllable || rowspan="2" | Not controllable || rowspan="2" | Not controllable || rowspan="2" | Not controllable || rowspan="2" | Separate || rowspan="2" | Not ontrollable || rowspan="2" | Not controllable
+
| Controllable || rowspan="2" | Controllable || rowspan="2" | Not controllable || rowspan="2" | Controllable || rowspan="2" | Combined || rowspan="2" | Not controllable || rowspan="2" | Controllable
 
|-
 
|-
 
|}
 
|}
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===Modules===
 
===Modules===
 
{| class="wikitable"
 
{| class="wikitable"
−
!colspan = "1"| Tier
+
! colspan="1" | Tier
−
!colspan = "2"| Flight performance
+
! colspan="2" | Flight performance
−
!colspan = "1"| Survivability
+
! colspan="1" | Survivability
−
!colspan = "2"| Weaponry
+
! colspan="2" | Weaponry
 
|-
 
|-
 
| I
 
| I
Line 206: Line 210:
  
 
'''Pros:'''
 
'''Pros:'''
−
*
+
 
 +
* 5 Guns. One 20mm 404 Hispano Cannon near the nose of the aircraft and 4 7.5mm MAC 1934 machine guns in the wings
 +
* Plenty of ammo for the machine-guns
 +
* Powerful nose mounted 20mm cannon
 +
* Good all round low tier fighter aircraft
  
 
'''Cons:'''
 
'''Cons:'''
−
*
+
 
 +
* Neither very manoeuvrable or very fast
 +
* Very little ammo for the 20mm cannon. Limited to 60 shells
 +
* Relatively poor rate of climb
  
 
== 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 big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/ historical reference" (example: https://wiki.warthunder.com/Name-vehicles/historical reference) and add a link to it here using the <code>main</code> template. Be sure to include links to sources at the end of the article.''
+
<!-- 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 big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/ historical reference" (example: https://wiki.warthunder.com/Name-vehicles/historical reference) and add a link to it here using the main template. Be sure to include links to sources at the end of the article. -->
 +
A single-seat monoplane fighter with an all-metal construction, closed cockpit and retractable landing gear with a tail wheel. Designed by the SNCAM (Societe Nationale des constructions aeronautiques 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 ==
 
== Media ==
Line 219: Line 239:
 
== Read also ==
 
== Read 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;''
 
* ''reference to the series of the aircraft;''
 
* ''links to approximate analogues of other nations and research trees.''
 
* ''links to approximate analogues of other nations and research trees.''
Line 225: Line 246:
 
== Sources ==
 
== Sources ==
 
''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;''
 
* ''page on aircraft encyclopedia;''
 
* ''page on aircraft encyclopedia;''

Revision as of 20:33, 16 February 2019

Rank 7 USA
F-5C Pack
▄D.521
d_521.png
▄D.521
Britain flag.png Britain
II Rank
Battle rating:
AB RB SB
3.3 3.0 2.7
Class:
Purchase:Bundle or Gift
Show in game

Description

The D.521 (Great Britain) in the garage


The ▄D.521 is a Rank II gift British fighter with a battle rating of 3.3 (AB), 3.0 (RB), and 2.7 (SB). This aircraft was introduced in the game during the Open Beta session during the 13 June 2013 event "Vive la Liberté!" and remains as an event vehicle today. 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. This is also reflected in it's battle rating in Arcade which stands at 3.7 rather than the 3.3 on the D.520, however in Realistic and Simulator Battles, it is in fact at 2.7 whilst the D.520 is at 3.0 respectively. 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

Characteristics
Stock
Max Speed
(km/h at 6,500 m) 		Max altitude
(meters) 		Turn time
(seconds) 		Rate of climb
(meters/second) 		Take-off run
(meters)
AB RB AB RB AB RB
548 536 12000 22.4 22.9 5.8 7.3 310
Upgraded
Max Speed
(km/h at 6,500 m) 		Max altitude (meters) Turn time (seconds) Rate of climb
(meters/second) 		Take-off run (meters)
AB RB AB RB AB RB
594 570 12000 19.6 21.0 16.0 10.0 310

Details

Features
Combat flap Take-off flap Landing flap Air brakes Arrestor gear
✓ ✓ ✓ X X
Limits
Wing-break speed
(km/h) 		Gear limit
(km/h) 		Combat flap
(km/h) 		Max Static G
+ -
0 340 400 ~18 ~15
Optimal velocities
Ailerons
(km/h) 		Rudder
(km/h) 		Elevators
(km/h) 		Radiator
(km/h)
< 400 < 430 < 460 > 250
Compressor (RB/SB)
Setting 1
Optimal altitude 100% Engine power WEP Engine power
4,953 m 924 hp 1,024 hp

Survivability and armour

  • 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

Armaments

Offensive armament

Main articles: Hispano 404 (20 mm), MAC 1934 (7.5 mm)

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 gun, wing-mounted (675 rpg = 2,700 total)

Usage in the battles

Manual Engine Control

MEC elements
Mixer Pitch Radiator Supercharger Turbocharger
Oil Water Type
Controllable Controllable Not controllable Controllable Combined Not controllable Controllable

Modules

Tier Flight performance Survivability Weaponry
I Fuselage Repair Radiator
II Compressor Airframe
III Wings Repair Engine
IV Engine Injection Cover

Pros and cons

Pros:

  • 5 Guns. One 20mm 404 Hispano Cannon near the nose of the aircraft and 4 7.5mm MAC 1934 machine guns in the wings
  • Plenty of ammo for the machine-guns
  • Powerful nose mounted 20mm cannon
  • Good all round low tier fighter aircraft

Cons:

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

History

A single-seat monoplane fighter with an all-metal construction, closed cockpit and retractable landing gear with a tail wheel. Designed by the SNCAM (Societe Nationale des constructions aeronautiques 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

An excellent addition to the article will be video guides, as well as screenshots from the game and photos.

Read 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.

Sources

Paste links to sources and external resources, such as:

  • topic on the official game forum;
  • page on aircraft encyclopedia;
  • other literature.


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

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