Difference between revisions of "Potez 631"

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{{Specs-Card|code=potez_631}}
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{{About
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| about = French bomber '''{{PAGENAME}}'''
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| and
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| usage = other versions
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| link-1 = Potez 630
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| link-2 = Potez 633
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}}
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{{Specs-Card
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|code=potez_631
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|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg|ArtImage_{{PAGENAME}}.png}}
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}}
  
 
== Description ==
 
== Description ==
The SNCAN '''Potez 631''' was the second production variant of the Potez 63 project, which was a project intended to provide France with modern heavy fighter capabilities and which eventually led to one of the most prolific and versatile series of combat aircraft to be built by the French aeronautical industry at the beginning of World War II. The 63 series, originally conceived in 1934, yielded not only strategic fighters, but also light bombers as well as attack and reconnaissance planes, resulting in the production of more than 1,100 aircraft of different variants in the series by June 1940. This elegant aircraft remained in active service during German occupation, and approximately 250 additional planes built in that period were used by the Luftwaffe as transport and liaison aircraft of the Vichy Air Force, the Italian ''Regia Aeronautica'', and of the Rumanian Air Force.
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<!-- ''In the description, the first part should be about the history of and the creation and combat usage of the aircraft, as well as its key features. In the second part, tell the reader about the aircraft in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
 +
The '''SNCAN Potez 631''' was the second production variant of the Potez 63 project, which was a project intended to provide France with modern heavy fighter capabilities and which eventually led to one of the most prolific and versatile series of combat aircraft to be built by the French aeronautical industry at the beginning of World War II. The 63 series, originally conceived in 1934, yielded not only strategic fighters but also light bombers as well as attack and reconnaissance planes, resulting in the production of more than 1,100 aircraft of different variants in the series by June 1940. This elegant aircraft remained in active service during the German occupation, and approximately 250 additional planes built in that period were used by the Luftwaffe as transport and liaison aircraft of the Vichy Air Force, the Italian Regia Aeronautica, and of the Romanian Air Force.
  
In War Thunder, the '''Potez 631''' is a Rank I French twin-engine fighter with a Battle Rating of 2.0 (AB/SB) and 2.3 (RB). It appeared following the introduction of the Potez 630 in [[Update 1.73 "Vive la France"]]. Its armament features the last-ditch French effort to upgrade the aircraft before the outbreak of hostilities, equipped with 2 x 20mm underbelly cannon and 6 wing-mounted 7.5mm machine guns, along with a single 7.5mm rear-facing defensive turret.  
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It was introduced in [[Update 1.73 "Vive la France"]] along with the initial French aviation tree. The {{Specs|name}} is the second variant of the Potez found in the French Tech Tree dedicated for air-to-air combat. Compared to the previous [[Potez 630]], the 631 features six wing-mounted 7.5 mm machine guns, which alongside the two 20 mm cannons mounted in the nose, give the Potez a powerful armament for its rank. However, this armament comes at the cost of speed, the added weight and already mediocre airframe coupled with less powerful engines than the previous variation makes this aircraft ineffective in duelling. Thus, it should be played in a more passive role, with boom and zoom tactics instead of rushing the center of the map.
  
[[File:Garage Image - Potez 631.jpg|left|thumb|500x500px|War Thunder Potez 631]]
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== General info ==
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=== Flight performance ===
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{{Specs-Avia-Flight}}
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<!-- ''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.'' -->
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The {{PAGENAME}} is a slow climber and heavy lander, with a stall speed of 138 km/h (SB, 45 min fuel, full ammunition, no bombs), but is very stable in high-speed dives and turns and can be lethal when used properly as an energy fighter. Its maximum speed is modest at 332 km/h at 4,000 m (SB, 45 min fuel, full ammunition, no bombs) but manoeuvres surprisingly well at medium and high speeds and the canopy provides excellent 360-degree visibility.
 +
 
 +
{| class="wikitable" style="text-align:center" width="70%"
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! rowspan="2" | Characteristics
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! colspan="2" | Max Speed<br>(km/h at 4,000 m)
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! rowspan="2" | Max altitude<br>(metres)
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! colspan="2" | Turn time<br>(seconds)
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! colspan="2" | Rate of climb<br>(metres/second)
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! rowspan="2" | Take-off run<br>(metres)
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|-
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! AB !! RB !! AB !! RB !! AB !! RB
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|-
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! Stock
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| 408 || 391 || rowspan="2" | {{Specs|ceiling}} || 22.4 || 23.6 || 4.1 || 4.1 || rowspan="2" | 350
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|-
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! Upgraded
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| 453 || 430 || 19.8 || 21.0 || 12.1 || 7.4
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|-
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|}
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==== Details ====
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{| class="wikitable" style="text-align:center" width="50%"
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|-
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! colspan="5" | Features
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|-
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! Combat flaps !! Take-off flaps !! Landing flaps !! Air brakes !! Arrestor gear
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|-
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| ✓ || ✓ || ✓ || X || X    <!-- ✓ -->
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|-
 +
|}
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 +
{| class="wikitable" style="text-align:center" width="50%"
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|-
 +
! colspan="7" | Limits
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|-
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! rowspan="2" | Wings (km/h)
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! rowspan="2" | Gear (km/h)
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! colspan="3" | Flaps (km/h)
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! colspan="2" | Max Static G
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|-
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! Combat !! Take-off !! Landing !! + !! -
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|-
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| 710 <!-- {{Specs|destruction|body}} --> || {{Specs|destruction|gear}} || 346 || 329 || 240 || ~10 || ~7
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|-
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|}
  
== General info ==
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{| class="wikitable" style="text-align:center"
=== Flight Performance ===
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|-
The '''Potez 631''' is a slow climber and heavy lander, with a stall speed of 138 km/h (SB, 45 min fuel, full ammunition, no bombs), but is very stable in high-speed dives and turns and can be lethal when used properly as an energy fighter. Its maximum speed is modest at 332 km/h @ 4,000m (SB, 45 min fuel, full ammunition, no bombs) but maneuvers surprisingly well at medium and high speeds, and the canopy provides excellent 360-degree visibility.
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! colspan="4" | Optimal velocities (km/h)
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|-
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! Ailerons !! Rudder !! Elevators !! Radiator
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|-
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| < 360 || < 360 || < 330 || > 320
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|-
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|}
  
 
=== Survivability and armour ===
 
=== Survivability and armour ===
The '''Potez 631''' has minimal armor and is relatively fragile, and highly vulnerable to damage from the front which makes it less-than-ideal as a high-level interceptor.
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{{Specs-Avia-Armour}}
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<!-- ''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.'' -->
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The '''Potez 631''' has no armour and is relatively fragile, and highly vulnerable to damage from the front which makes it less-than-ideal as a high-level interceptor. There are 2 self-sealing fuel tanks; one close to each wingroot.
  
* '''No armor plating'''
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=== Modifications and economy ===
* '''No armor glazing'''
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{{Specs-Economy}}
* '''Critical components located in front of aircraft (fuel, pilot, engine, controls)'''
 
  
 
== Armaments ==
 
== Armaments ==
=== Offensive armament: ===
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{{Specs-Avia-Armaments}}
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=== Offensive armament ===
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{{Specs-Avia-Offensive}}
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<!-- ''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.'' -->
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{{main|Hispano 404 (20 mm)|MAC 1934 (7.5 mm)}}
  
:
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The '''''{{PAGENAME}}''''' is armed with:
: ''Main article'': '''''[[MAC 1934 (7.5 mm)]]'''''
 
: ''Main article'': '''''[[Hispano 404 (20 mm)]]'''''
 
  
The '''Potez 631''' is armed with:
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* 2 x 20 mm Hispano 404 cannons, chin-mounted (90 rpg = 180 total)
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* 6 x 7.5 mm MAC 1934 machine guns, wing-mounted (300 rpg = 1,800 total)
  
* 6 х 7.5 mm MAC 1934 machine gun (300 rpg = 1800 total rounds)
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The cannons are arranged in the belly of the fuselage right under the pilot's seat. The machine guns are wing-mounted, three guns in each wing.
  
The machine guns are wing-mounted, three guns in each wing.
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Universal ammunition belts are the preferred loadout for both weapons in most cases, although the extra armour-piercing capabilities of the ground target belt for the cannon will work effectively against both armoured ground targets and aircraft for penetrating engine blocks. A short-burst of both cannon and MG fire at convergence range will mortally wound or destroy any opponent of equivalent rank. Recommended convergence settings: 300 m for high-energy fighter engagements, 400 m for boom-and-zoom bounce tactics against fighters/bombers/attackers, 500 m for ground attack. An alternative setup would be tracers on the machine guns, as this makes leading easier and also is very potent for setting planes on fire, as every bullet is an API-T.
  
* 2 x 20 mm Hispano 404 cannon (90 rpg = 180 total rounds)
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=== Suspended armament ===
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{{Specs-Avia-Suspended}}
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<!-- ''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.'' -->
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{{main|№.1 (100 kg)}}
  
The cannons are arranged in the belly of the fuselage right under the pilot's seat.
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The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
  
Universal ammunition belts will be the preferred loadout for both weapons in most cases, although the extra armor-piercing capabilities of the ground target belt for the cannon will work effectively against both armored ground targets and aircraft for penetrating engine blocks. A short-burst of both cannon and MG fire at convergence range will mortally wound or kill any opponent of equivalent rank. Recommended convergence settings: 300m for high-energy fighter engagements, 400m for boom-and-zoom bounce tactics against fighters/bombers/attackers, 500m for ground attack.  
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* Without load
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* 2 x 100 kg №.1 bombs (200 kg total)
  
=== Suspended armament ===
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The '''Potez 631''' can be armed with 2 x 100 No.1 bombs (118 kg each, with an explosive mass of 50 kg allowing for an armoured target destruction radius of 4 m) mounted under wing between the fuselage and each engine.
The '''Potez 631''' can be armed with 2 x 100 No.1 bombs (118 kg each, explosive mass of 50kg with an armored target destruction radius of 4m) mounted under wing between the fuselage and each engine.
 
  
 
=== Defensive armament ===
 
=== Defensive armament ===
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{{Specs-Avia-Defensive}}
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<!-- ''Defensive armament with turret machine guns or cannons, crewed by gunners. Examine the number of gunners and what belts or drums are better to use. If defensive weaponry is not available, remove this subsection.'' -->
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{{main|MAC 1934 (7.5 mm)}}
  
:  
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The '''''{{PAGENAME}}''''' is defended by:
  
The '''Potez 631''' is defended by:
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* 1 x 7.5 mm MAC 1934 machine gun, dorsal turret (1,000 rpg)
  
* 1 x 7.5 mm MAC 1934 machine gun, dorsal turret (1,000 rpg)
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== Usage in battles ==
 +
<!-- ''Describe the tactics of playing in an 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).'' -->
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The '''Potez 631''' is best used as a mid- to low-altitude energy fighter. The sluggish climb, poor performance above 16,000 feet and vulnerability to frontal damage limit its effectiveness as a higher-altitude interceptor, while the stability and surprising manoeuvrability at high speeds make it ideal for diving on vulnerable targets at low altitudes and then extending away to begin the slow climb to set up for another pass. If you attract the attention of an enemy fighter, do not attempt to climb away or to execute any advanced manoeuvres such as loops or chandelles, as the Potez 631 bleeds energy at an exceptional rate in any kind of a climb. Just stay level with the throttle wide open and let the dorsal gunner ward off trailing attackers until you can safely begin a shallow climb to set up for re-engagement. Pilots with solid gunnery skills who can accurately gauge convergence distance can excel in this aircraft with six converged guns and two centreline cannons delivering a high volume of lethal ordnance to a small targeted area.
  
== Usage in the battles ==
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=== Manual Engine Control ===
The '''Potez 631''' is best used as a mid- to low-altitude energy fighter. The sluggish climb, poor performance above 16,000 feet and vulnerability to frontal damage limit its effectiveness as a higher-altitude interceptor, while the stability and surprising maneuverability at high speeds make it ideal for diving on vulnerable targets at low altitudes and then extending away to begin the slow climb to set up for another pass. If you attract the attention of an enemy fighter, do not attempt to climb away or to execute any advanced maneuvers such as loops or chandelles, as the '''Potez 631''' bleeds energy at an exceptional rate in any kind of a climb. Just stay level with the throttle wide open and let the dorsal gunner warn off trailing attackers until you can safely begin a shallow climb to set up for re-engagement. Pilots with solid gunnery skills who can accurately gauge convergence distance can excel in this aircraft with six converged guns and two centerline cannons delivering a high volume of lethal ordnance to a small targeted area. 
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{| class="wikitable" style="text-align:center"
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|-
 +
! colspan="7" | MEC elements
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|-
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! rowspan="2" | Mixer
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! rowspan="2" | Pitch
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! colspan="3" | Radiator
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! rowspan="2" | Supercharger
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! rowspan="2" | Turbocharger
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|-
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! Oil
 +
! Water
 +
! Type
 +
|-
 +
| Controllable || rowspan="2" | Not controllable<br>Not auto controlled || rowspan="2" | Controllable<br>Not auto controlled || rowspan="2" | Controllable<br>Not auto controlled || rowspan="2" | Separate || rowspan="2" | Not controllable<br>1 gear || rowspan="2" | Not controllable
 +
|-
 +
|}
  
 
=== Pros and cons ===
 
=== Pros and cons ===
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<!-- ''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".'' -->
 +
 
'''Pros:'''
 
'''Pros:'''
  
* Surprisingly maneuverable for a heavy fighter
+
* Excellent manoeuvrability, even when compared to single-engined fighters
* Potent offensive armament
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* Impressive offensive armament, delivering substantial firepower
 
* Stable at high speeds, effective dive characteristics
 
* Stable at high speeds, effective dive characteristics
* Excellent 360-degree visibility
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* Offers excellent 360-degree visibility for enhanced situational awareness
 
+
* Enhanced armament and manoeuvrability than [[Potez 630|its predecessor]]
*
 
  
 
'''Cons:'''
 
'''Cons:'''
  
* Nose and wings create a large profile and lack of armor make the aircraft highly vulnerable to battle damage
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* The aircraft's large profile, along with the lack of armour, makes it highly vulnerable to battle damage
 
* Very sluggish climb rate, unimpressive max speed in level flight
 
* Very sluggish climb rate, unimpressive max speed in level flight
 
* Poor energy retention in turns and especially in vertical loops
 
* Poor energy retention in turns and especially in vertical loops
* Dorsal gun serves more of a warning role than as an effective defensive armament
+
* Ineffective defensive armament for protecting against incoming attacks.
* Overheat tendency in climbs
+
* Engine overheats when not utilising MEC
* Poor performance above 16,000 feet
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* Poor performance above 4,800 m (16,000 ft.), WEP provides no performance boost above 2,000 m
 
 
*
 
  
 
== History ==
 
== History ==
The Potez 63 project was initiated in October 1934 with the issuance of official specifications for construction of an aircraft fulfilling three primary roles: a two-seat interceptor and escort fighter; a two-seat night fighter; and a three-seat command-and-control aircraft to radio direct operations of single-seat fighters. The first prototype flew in April 1936 powered by a pair of 580 HP Hispano-Suiza radial engines, which, after redesign and minor modifications, would become the 630 production variant, while a second prototype fitted with Gnome-Rhone 14 Mars engines flew in March 1937 and would become the '''631''' production variant. Following successful official trials, an initial order for 80 Potez 630s and 90 '''Potez 631s''' was placed, with delivery to combat units beginning at the end of 1938 and eventual production of a total of 207 '''Potez 631s''' completed. The '''631''' was intended to be the main production variant of the project, but the limited availability of the Gnome-Rhone engines required greater reliance on the 630 model and development of other variants. The performance in official trials resulted in the expansion of the project, with development of the day bomber Potez 633, the three-seat reconnaissance Potez 637, and experimental aircraft that were later abandoned including the 635 night bomber, the 639 ground attack plane, and 63.12 dive bomber.
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<!-- ''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: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' -->
  
The '''Potez 631''' entered service with the fighter director flights that were attached to each single-engine fighter wing (''Escadre de Chasse''), and with the night fighter groups (G.C.N. or ''Groupes de  Chasse de Nuit''). At the start of the Second World War a total of 206 aircraft had been accepted and 117 had reached front line units. G.C.N. I/13 and G.C.N. II/13 possessed 39 aircraft, four were in Djibouti, four were at Ajaccio and 70 were with the ''Escadre de Chasse'' (alongside a number of Potez 630s). A small number were also assigned to GC II/8 where they replaced the Morane-Saulnier MS 225 and Dewoitine D.510 single-seat fighters. In the spring of 1940, a belated attempt was made to improve the armament of the '''Potez 631'''. Although the type was meant to have two forward-firing 20mm cannon, these had been in short supply, and a number were built with one cannon and one machine gun. It was now decided to fit every aircraft with two 20mm cannon and to add four machine guns under the wings. Although this decision was made on 8 February, by 10 May only two improved aircraft had reached the front lines.
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In 1934, the French Air Ministry issued a requirement for a new twin-engine heavy fighter, capable of both day-fighter and night-fighter roles. The original Potez 630 prototype was designed to fulfil this role, while the Potez 631 was a re-engined variant of the 630 prototype. In July 1937, an initial order for 40 Potez 631 day-fighters was placed by the Air Ministry, and on August 2nd 1938, the first Potez 631 was accepted by the French Air Service. The aircraft was immediately used to re-equip units using the obsolete Les Mureaux 113 fighters then being used as night figher aircraft.
  
On 10 May 1940 the Armée de l'Air had 75 '''Potez 631s''' in front line units, with 53 of them serviceable. Four night fighter units were allocated to the defense of Paris and the fifth to the defense of Lyons, Etienne and the Le Creusot area. The day-fighter unit E.C.M. I/16 was at Wez-Thuisy. Finally the Navy's Flotille F1C was deployed at Calais. This naval unit was the most successful '''Potez 631''' unit of the Battle of France. Between 10-21 May, this squadron shot down 12 German aircraft over the North Sea at the loss of eight '''Potez 631s'''. The five night fighter units were not successful. Night operations commenced on 11 May, but there were no successful interceptions. A week later, the French High Command decided to use the aircraft in the increasingly desperate day battles. On 17 May twenty-four '''Potez 631s''' from the units based around Paris attempted to attack German columns  around Formies. Eighteen aircraft reached the target area and six were lost, probably all to German anti-aircraft batteries. The night fighter units achieved their first success on 18 May, when an aircraft from E.C.N. 1/13 shot down a Heinkel He 111. Sadly, this same day saw a '''Potez 631''' lost to friendly fire by an M.S. 406 pilot who had mistaken the aircraft for a German Bf-110. Another Potez was shot down by three Bloch 152s on 23 May, and on the following day the ''Armée de l'Air'' ordered recognition stripes to be painted on each aircraft (5m long white stripes on the fuselage). From 20 June the night fighter units were forced to retreat south to escape the advancing Germans. By the end of the Battle of France, the five night fighter units claimed four confirmed victories and eight probable victories, but at the cost of ten fighters lost to enemy action and three to friendly fire.
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By the outbreak of the Second World War, the Air Service had 88 Potez 631 aircraft available, as well as many aircraft of other variants. The aircraft was brought into service in large numbers to replace the large numbers of [[D.500]] and M.S.225 aircraft being retired from active duty. However, as soon as the aircraft was pressed into service against the Germans, it was highly evident that the aircraft was ineffective in its role. It could barely keep up with German bombers such as the Ju 88, let alone the Bf 109 and Bf 110 fighters the aircraft was commonly fighting over the skies of France. As a result, the aircraft suffered heavy losses; the most successful squadron, F1C of the Aéronavale, managed 12 kills for 8 losses before being withdrawn from combat.
  
After the fall of France, The '''Potez 631''' remained in use in small numbers with the Vichy Air Force. Two night fighter units, E.C.N 1/13 and E.C.N. 3/13 kept the aircraft. Eighty two aircraft were on strength on 1 November 1941, and 64 one year later. In the aftermath of the Allied invasion of North Africa and the German occupation of Vichy France, the French units in North Africa changed sides to support the Allies. The '''Potez 631s''' of E.C.N. 3/13 were used to  defend the Gabès area against German attack, but were replaced with more modern aircraft later in November 1942. Three '''Potez 631s''' were used by the French Forces of the Interior after the Allied invasion of the south of France, allocated to ''Groupe de Reconnaissance'' II/33  'Périgord' at Cognac, and were used to fly reconnaissance missions over the remaining German pockets of resistance on the Atlantic coast. After the war these aircraft were used as trainers.
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Following the French Armistice of 1940, the air force of Vichy France inherited 82 Potez 631 aircraft that had been left intact. These aircraft were mostly based in North Africa; however, many were destroyed during Operation Torch. On November 27th 1942, German forces occupied the Vichy air force bases and seized their aircraft. Around 130 Potez 630-type aircraft were taken, and many were sent to Romania for use as target tugs and trainer aircraft. The German forces also resumed production of the type, and built numerous more Potez 630 aircraft for use in transport, liaison and training roles. After the end of WWII, several Potez 631 aircraft were retained for training roles. Of these, three were recaptured examples, and served as trainers with the re-established French Air Force.
  
''Sources:''
+
== Media ==
 
+
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
''"The Complete book of World War II Combat Aircraft", by Enzo Angelucci, Paolo Matricardi and Pierluigi Pinto, 2001, Barnes & Noble Books.''
 
 
 
''Rickard, J (20 May 2011), Potez 631, <nowiki>http://www.historyofwar.org/articles/weapons_potez_631.html</nowiki>''
 
  
== Media ==
+
;Skins
  
[https://www.youtube.com/watch?v=FSy6IFHZv1E Arcade Battle Video Review]
+
* [https://live.warthunder.com/feed/camouflages/?vehicle=potez_631 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
  
[https://www.youtube.com/watch?v=kWHz9HkF6Lc Realistic Battle Video Review]
+
;Videos
 +
{{Youtube-gallery|ux0UOLTLKuM|'''Potez 631 in a short flight - Simulator battl''' - ''ScAreCrOw Gaming''|FSy6IFHZv1E|'''(Arcade): Potez 631 - Full Potential''' - ''TX141''|kWHz9HkF6Lc|'''Realistic: Potez 631 [Nimble Beast]''' - ''Jengar''}}
  
[https://www.youtube.com/watch?v=ux0UOLTLKuM Simulator Battle Demonstration (no commentary)]
+
== 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.'' -->
  
== Read also ==
+
;Related development
 +
* [[Potez 630 (Family)]]
  
https://en.wikipedia.org/wiki/Potez_630
+
;Aircraft of comparable role, configuration and era
 +
* [[File:Germany flag.png|30px|link=]] [[Bf 110 (Family)]]
 +
* [[File:IJA flag.png|30px|link=]] [[Ki-45 (Family)]]
 +
* [[File:France flag.png|30px|link=]] [[Br.693AB2|Bréguet 693 AB.2]]
 +
* [[File:Britain flag.png|30px|link=]] [[Beaufighter (Family)]]
 +
* [[File:Britain flag.png|30px|link=]] [[Blenheim Mk IV]]
 +
* [[File:Netherlands flag.png|30px|link=]] [[Fokker G.IA (France)|Fokker G.IA]]
 +
* [[File:USSR flag.png|30px|link=]] [[Yak-2 KABB]]
  
http://all-aero.com/index.php/54-planes-p-q-e-r-s/8072-potez-63--630--631--637
+
== External links ==
== Sources ==
+
<!-- ''Paste links to sources and external resources, such as:''
[[Potez 630]]
+
* ''topic on the official game forum;''
 +
* ''other literature.'' -->
  
http://all-aero.com/index.php/54-planes-p-q-e-r-s/8072-potez-63--630--631--637
+
* [[wt:en/news/5022-development-potez-p-631-attacker-s-apprentice-en|[Devblog] Potez P.631: Attacker's Apprentice]]
 +
* [https://forum.warthunder.com/index.php?/topic/385890-potez-631/ Official data sheet - more details about the performance]
 +
* [[Wikipedia:Potez_630|[Wikipedia] Potez 630]]
 +
* [http://all-aero.com/index.php/54-planes-p-q-e-r-s/8072-potez-63--630--631--637 <nowiki>[All-Aero]</nowiki> Potez 63 / 630 / 631 / 637]
  
https://www.passionair1940.fr/Armee%20de%20l%27Air/Appareils/Chasse/Potez-630-631/EN-Potez-631.htm
+
{{AirManufacturer Potez}}
 +
{{France twin-engine fighters and attackers}}

Latest revision as of 22:05, 25 June 2024

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This page is about the French bomber Potez 631. For other versions, see Potez 630 and Potez 633.
Potez 631
potez_631.png
GarageImage Potez 631.jpg
ArtImage Potez 631.png
Potez 631
Research:4 600 Specs-Card-Exp.png
Purchase:16 000 Specs-Card-Lion.png
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Description

The SNCAN Potez 631 was the second production variant of the Potez 63 project, which was a project intended to provide France with modern heavy fighter capabilities and which eventually led to one of the most prolific and versatile series of combat aircraft to be built by the French aeronautical industry at the beginning of World War II. The 63 series, originally conceived in 1934, yielded not only strategic fighters but also light bombers as well as attack and reconnaissance planes, resulting in the production of more than 1,100 aircraft of different variants in the series by June 1940. This elegant aircraft remained in active service during the German occupation, and approximately 250 additional planes built in that period were used by the Luftwaffe as transport and liaison aircraft of the Vichy Air Force, the Italian Regia Aeronautica, and of the Romanian Air Force.

It was introduced in Update 1.73 "Vive la France" along with the initial French aviation tree. The Potez 631 is the second variant of the Potez found in the French Tech Tree dedicated for air-to-air combat. Compared to the previous Potez 630, the 631 features six wing-mounted 7.5 mm machine guns, which alongside the two 20 mm cannons mounted in the nose, give the Potez a powerful armament for its rank. However, this armament comes at the cost of speed, the added weight and already mediocre airframe coupled with less powerful engines than the previous variation makes this aircraft ineffective in duelling. Thus, it should be played in a more passive role, with boom and zoom tactics instead of rushing the center of the map.

General info

Flight performance

Max speed
at 4 000 m430 km/h
Turn time21 s
Max altitude9 500 m
Engine2 х Gnome Rhone 14Mars
TypeRadial
Cooling systemAir
Take-off weight4 t

The Potez 631 is a slow climber and heavy lander, with a stall speed of 138 km/h (SB, 45 min fuel, full ammunition, no bombs), but is very stable in high-speed dives and turns and can be lethal when used properly as an energy fighter. Its maximum speed is modest at 332 km/h at 4,000 m (SB, 45 min fuel, full ammunition, no bombs) but manoeuvres surprisingly well at medium and high speeds and the canopy provides excellent 360-degree visibility.

Characteristics Max Speed
(km/h at 4,000 m)
Max altitude
(metres)
Turn time
(seconds)
Rate of climb
(metres/second)
Take-off run
(metres)
AB RB AB RB AB RB
Stock 408 391 9500 22.4 23.6 4.1 4.1 350
Upgraded 453 430 19.8 21.0 12.1 7.4

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 + -
710 295 346 329 240 ~10 ~7
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 360 < 360 < 330 > 320

Survivability and armour

Crew2 people
Speed of destruction
Structural0 km/h
Gear295 km/h

The Potez 631 has no armour and is relatively fragile, and highly vulnerable to damage from the front which makes it less-than-ideal as a high-level interceptor. There are 2 self-sealing fuel tanks; one close to each wingroot.

Modifications and economy

Repair costBasic → Reference
AB458 → 628 Sl icon.png
RB916 → 1 256 Sl icon.png
SB1 106 → 1 517 Sl icon.png
Total cost of modifications8 400 Rp icon.png
9 480 Sl icon.png
Talisman cost640 Ge icon.png
Crew training4 500 Sl icon.png
Experts16 000 Sl icon.png
Aces180 Ge icon.png
Research Aces190 000 Rp icon.png
Reward for battleAB / RB / SB
30 / 80 / 160 % Sl icon.png
118 / 118 / 118 % Rp icon.png
Modifications
Flight performance Survivability Weaponry
Mods aerodinamic fuse.png
Fuselage repair
Research:
420 Rp icon.png
Cost:
470 Sl icon.png
85 Ge icon.png
Mods radiator.png
Radiator
Research:
420 Rp icon.png
Cost:
470 Sl icon.png
85 Ge icon.png
Mods armor frame.png
Airframe
Research:
470 Rp icon.png
Cost:
530 Sl icon.png
95 Ge icon.png
Mods compressor.png
Compressor
Research:
470 Rp icon.png
Cost:
530 Sl icon.png
95 Ge icon.png
Mods aerodinamic wing.png
Wings repair
Research:
530 Rp icon.png
Cost:
600 Sl icon.png
105 Ge icon.png
Mods new engine.png
Engine
Research:
530 Rp icon.png
Cost:
600 Sl icon.png
105 Ge icon.png
Mods armor cover.png
Cover
Research:
680 Rp icon.png
Cost:
770 Sl icon.png
135 Ge icon.png
Mods metanol.png
Engine injection
Research:
680 Rp icon.png
Cost:
770 Sl icon.png
135 Ge icon.png
Mods engine extinguisher.png
EFS(a)
Research:
680 Rp icon.png
Cost:
770 Sl icon.png
135 Ge icon.png
Mods ammo.png
7_5mm_belt_pack
Research:
420 Rp icon.png
Cost:
470 Sl icon.png
85 Ge icon.png
Mod arrow 0.png
Mods ammo.png
7_5mm_turret_belt_pack
Research:
420 Rp icon.png
Cost:
470 Sl icon.png
85 Ge icon.png
Mod arrow 0.png
Mods weapon.png
mac39_new_gun
Research:
470 Rp icon.png
Cost:
530 Sl icon.png
95 Ge icon.png
Mods turret gun.png
mac39_turret_new_gun
Research:
470 Rp icon.png
Cost:
530 Sl icon.png
95 Ge icon.png
Mods ammo.png
hispano_belt_pack
Research:
530 Rp icon.png
Cost:
600 Sl icon.png
105 Ge icon.png
Mod arrow 0.png
Mods pilon bomb.png
100 GPs
Research:
530 Rp icon.png
Cost:
600 Sl icon.png
105 Ge icon.png
Mods weapon.png
hispano_404_new_gun
Research:
680 Rp icon.png
Cost:
770 Sl icon.png
135 Ge icon.png

Armaments

Offensive armament

Ammunition180 rounds
Fire rate700 shots/min
Ammunition1 800 rounds
Fire rate1 350 shots/min

The Potez 631 is armed with:

  • 2 x 20 mm Hispano 404 cannons, chin-mounted (90 rpg = 180 total)
  • 6 x 7.5 mm MAC 1934 machine guns, wing-mounted (300 rpg = 1,800 total)

The cannons are arranged in the belly of the fuselage right under the pilot's seat. The machine guns are wing-mounted, three guns in each wing.

Universal ammunition belts are the preferred loadout for both weapons in most cases, although the extra armour-piercing capabilities of the ground target belt for the cannon will work effectively against both armoured ground targets and aircraft for penetrating engine blocks. A short-burst of both cannon and MG fire at convergence range will mortally wound or destroy any opponent of equivalent rank. Recommended convergence settings: 300 m for high-energy fighter engagements, 400 m for boom-and-zoom bounce tactics against fighters/bombers/attackers, 500 m for ground attack. An alternative setup would be tracers on the machine guns, as this makes leading easier and also is very potent for setting planes on fire, as every bullet is an API-T.

Suspended armament

List of setups (1)
Setup 12 x 100 kg No.1
Main article: №.1 (100 kg)

The Potez 631 can be outfitted with the following ordnance:

  • Without load
  • 2 x 100 kg №.1 bombs (200 kg total)

The Potez 631 can be armed with 2 x 100 No.1 bombs (118 kg each, with an explosive mass of 50 kg allowing for an armoured target destruction radius of 4 m) mounted under wing between the fuselage and each engine.

Defensive armament

Turret7.5 mm MAC 1934 machine gun
Ammunition1000 rounds
Fire rate1350 shots/min
Main article: MAC 1934 (7.5 mm)

The Potez 631 is defended by:

  • 1 x 7.5 mm MAC 1934 machine gun, dorsal turret (1,000 rpg)

Usage in battles

The Potez 631 is best used as a mid- to low-altitude energy fighter. The sluggish climb, poor performance above 16,000 feet and vulnerability to frontal damage limit its effectiveness as a higher-altitude interceptor, while the stability and surprising manoeuvrability at high speeds make it ideal for diving on vulnerable targets at low altitudes and then extending away to begin the slow climb to set up for another pass. If you attract the attention of an enemy fighter, do not attempt to climb away or to execute any advanced manoeuvres such as loops or chandelles, as the Potez 631 bleeds energy at an exceptional rate in any kind of a climb. Just stay level with the throttle wide open and let the dorsal gunner ward off trailing attackers until you can safely begin a shallow climb to set up for re-engagement. Pilots with solid gunnery skills who can accurately gauge convergence distance can excel in this aircraft with six converged guns and two centreline cannons delivering a high volume of lethal ordnance to a small targeted area.

Manual Engine Control

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

Pros and cons

Pros:

  • Excellent manoeuvrability, even when compared to single-engined fighters
  • Impressive offensive armament, delivering substantial firepower
  • Stable at high speeds, effective dive characteristics
  • Offers excellent 360-degree visibility for enhanced situational awareness
  • Enhanced armament and manoeuvrability than its predecessor

Cons:

  • The aircraft's large profile, along with the lack of armour, makes it highly vulnerable to battle damage
  • Very sluggish climb rate, unimpressive max speed in level flight
  • Poor energy retention in turns and especially in vertical loops
  • Ineffective defensive armament for protecting against incoming attacks.
  • Engine overheats when not utilising MEC
  • Poor performance above 4,800 m (16,000 ft.), WEP provides no performance boost above 2,000 m

History

In 1934, the French Air Ministry issued a requirement for a new twin-engine heavy fighter, capable of both day-fighter and night-fighter roles. The original Potez 630 prototype was designed to fulfil this role, while the Potez 631 was a re-engined variant of the 630 prototype. In July 1937, an initial order for 40 Potez 631 day-fighters was placed by the Air Ministry, and on August 2nd 1938, the first Potez 631 was accepted by the French Air Service. The aircraft was immediately used to re-equip units using the obsolete Les Mureaux 113 fighters then being used as night figher aircraft.

By the outbreak of the Second World War, the Air Service had 88 Potez 631 aircraft available, as well as many aircraft of other variants. The aircraft was brought into service in large numbers to replace the large numbers of D.500 and M.S.225 aircraft being retired from active duty. However, as soon as the aircraft was pressed into service against the Germans, it was highly evident that the aircraft was ineffective in its role. It could barely keep up with German bombers such as the Ju 88, let alone the Bf 109 and Bf 110 fighters the aircraft was commonly fighting over the skies of France. As a result, the aircraft suffered heavy losses; the most successful squadron, F1C of the Aéronavale, managed 12 kills for 8 losses before being withdrawn from combat.

Following the French Armistice of 1940, the air force of Vichy France inherited 82 Potez 631 aircraft that had been left intact. These aircraft were mostly based in North Africa; however, many were destroyed during Operation Torch. On November 27th 1942, German forces occupied the Vichy air force bases and seized their aircraft. Around 130 Potez 630-type aircraft were taken, and many were sent to Romania for use as target tugs and trainer aircraft. The German forces also resumed production of the type, and built numerous more Potez 630 aircraft for use in transport, liaison and training roles. After the end of WWII, several Potez 631 aircraft were retained for training roles. Of these, three were recaptured examples, and served as trainers with the re-established French Air Force.

Media

Skins
Videos

See also

Related development
Aircraft of comparable role, configuration and era

External links


Potez (SNCAN)
Fighters  Potez 630 · Potez 631
Bombers  Potez 633

France twin-engine fighters and strike aircraft
Twin-engine fighters  Potez 630 · Potez 631 · VB.10C-1 · VB.10-02
Strike aircraft  Br.693AB2 · ▄AD-4 · ▄AD-4NA
Netherlands 
Twin-engine fighters  ◗Fokker G.IA
Strike aircraft  ◘Firefly F.Mk.IV