1. The Morane-Saulnier MS-406
This aircraft is very maneuverable, and fairly well armed with its 20 mm HS-9 cannon (although slower than the HS-404) and two machine guns. the HS-404) and two machine guns, but its speed, acceleration and ceiling are too ceiling are too mediocre to take on the most modern fighters. This type can be considered virtually obsolete in the face of German fighters. In fact, during the during the French Campaign, units equipped with MS-406s bore the heaviest loss/victory ratio. loss/victory ratio. Nevertheless, these aircraft proved to be effective against Italian against Italian aircraft, and can still be used in Africa or in secondary theaters of operation. of operations.
By June 5, 203 MS-406s were already in North Africa and, as mentioned in the first part of this report of this report, 34 were able to be evacuated from mainland France.
Of these 237 aircraft, 44 have been lost to various causes since the start of operations against Italian forces in North Africa. Of the 193 MS-406s currently available in this theater, 31 are so worn out that they must be withdrawn from active service and will shortly be scrapped. By August 10, we need to send 24 MS-406s to the Middle East to reinforce the Allied fighters there, as the RAF seems to be very short of modern fighters in this region. These 24 aircraft will be transported by the aircraft carrier HMS Eagle, which is currently in the port of Algiers. Incidentally, 26 MS-406s were already deployed in Syria, and 6 of them have been sent to Egypt.
Once operations against Italian forces in North Africa had been successfully completed, the MS-406s would be withdrawn from the front lines, with the exception of those that could be deployed against Italian forces in East Africa, or to reinforce air defense in Indochina, where there were already 20 aircraft of this type (8 sent in August 1939 following a decision taken in February, and 12 sent at the end of 1939... by mistake!)
Depending on the number of surviving aircraft, we plan to modernize 30 to 40 of them into MS-410s (notably by fitting them with 12Y-45 engines built by Saurer) to build up a strategic reserve. We also plan to use a number of MS-406s for the fighter schools and CICs (Centres d'Instruction à la Chasse) being reconstituted in Morocco.
2. The Dewoitine D-520
This was undoubtedly the fighter with which we achieved our best results during the French Campaign. Experienced pilots claim that it can turn tighter and dive faster than the latest type of Messerschmitt Bf-109; in his combat report, the officer commanding GC I/3 states that "a 109 that tries to escape by diving is a dead 109." Nevertheless, the aircraft is slower in horizontal flight than the Bf109, and climbs more slowly. Its handling can also pose a few problems for novice pilots.
Counting the last aircraft recently evacuated by GC III/6 and II/7, we now have 377 D-520s at our disposal. Of the 284 Air Force aircraft, 12 are unserviceable due to manufacturing defects, and 71 need repairs or modifications to be fully war-grade. Of the 39 Aeronavale D-520s, 8 need repair and 5 modification. The last 54 aircraft have not yet been accepted by CRAS, even though they have often been evacuated by military personnel.
Ensuring that all D-520s are operational is a top priority for the Chasse.
These aircraft have been spared combat with Italian forces in North Africa, apart from the Aéronavale aircraft operating from Malta and Tunis. To date, only one Air Force unit equipped with this type of aircraft is likely to be engaged in combat in North Africa. N e are currently carrying out, and will continue to do so over the coming weeks, careful maintenance and overhaul operations, so as to have at least 270 aircraft operational by September 15. If we allow for the usual 120% of aircraft in depot reserve, we will then be able to line up 122 D-520s on the front line, i.e. five or six Groups, depending on the size of the Fighter Groups chosen.
We also hope to recover at least 20 operational D-520s from the Aéronavale by the end of the year. Between September and December, the French Navy is due to take delivery of the 81 Grumman G-36As it purchased at the end of 1939. The first of these flew from the Grumman-Bethpage factory at the end of May, and was officially handed over to the French authorities in early July. The Navy acquired a further 100 aircraft of a slightly different type, known as G-36Cs (these aircraft have folding wings like the G-36Bs purchased by the British, but use the same Cyclone G-205 engine as the G-36As).
Returning to the D-520, we can only regret that the loss of the SNCAM factory interrupted the modification program for this aircraft that the Chasse had planned in June. Nevertheless, SNCAM engineers are working at the Algiers AIA on a reduced aerodynamic improvement program based on work carried out from April to June in the Banlève wind tunnel. This limited modification (known as Level 1) should be applied to all wartime D-520s by December.
If the 12Y-51 engines built by Saurer are indeed available, a so-called Level 2 modification program will be launched to convert as many of our D-520s as possible into D-523s. The D-520 no. 45, used by SNCAM as a prototype for the D-523, reached a speed of 570 km/h at recovery altitude, with its full military load.
To improve the D-520's high-altitude performance, SNCAM engineers plan to combine a thorough drag-reduction program with the installation of a 12Y-49 engine. This so-called Level 3 modification could give us an aircraft capable of operating at more than 11,000 meters.
Unfortunately, none of these modification programs will enable the D-520/523 to achieve the performance demanded by the A39 program (640 km/h at recovery altitude). If German industry continues to introduce new fighter types at the current rate, we expect the D-520 to be as outclassed in a year's time as the MS-406 is now. It's impossible to overstate the priority of the Level 2 modification program. However, this program is closely dependent on the availability of Saurer-built 12Y-51 engines.
3. The Curtiss H-75
Until now, the Curtiss H-75 and its derivative H-751 have been the backbone of the Fighter Division's operational units.
The Pratt & Whitney-powered H-75 (A2 and A3 in the manufacturer's nomenclature) is a highly maneuverable aircraft, as agile as the MS-406 and notably more maneuverable than the D520 or Hawker Hurricane. Compared to the MS-406, the Curtiss benefits from better acceleration and an air-cooled engine. The current Bf-109, however, seriously outclassed the aircraft; only magnificent teamwork and esprit de corps beyond all praise prevented H-75-equipped units from suffering far worse losses than they did. Against Italian aircraft, on the other hand, the H-75 has a clear margin of superiority. Whatever the opponent, the weaponry is too weak (6 or even only 4 7.5 mm machine guns), and many H-75 pilots were killed or wounded by German machine-gun fire because they had to get close to their target to be effective.
The Wright Cyclone-powered H-751 (A4 for the manufacturer) is faster and climbs faster.
However, its armament is not superior.
Between June 18 and July 15, 161 Curtiss H-75/751s were evacuated from mainland France, and a further 10 were evacuated in the final days of combat. Meanwhile, between June 20 and August 2, 90 aircraft were delivered to Casablanca, and to date 60 have been assembled by engineers and technicians evacuated from Bourges and Toulouse. Since the beginning of the fighting against Italian forces in North Africa, 25 H-75s have been destroyed in combat or for other reasons.
To date, we have 206 Curtiss fighters in North Africa, 46 of which are of the H-751 subtype. A further 30 aircraft (H-75 and H751) are still in crates or being assembled. With the Curtiss-Buffalo plant having produced 284 H-751s, 90 of which have already arrived in France or North Africa, we are still awaiting delivery to Casablanca of 190 aircraft at a rate of around 60 a month from August to October. In all, 426 Curtiss H-75s will be available by the end of November, excluding losses due to combat or normal wear and tear.
We expect at least 360 aircraft to be operational by this date, enabling us to line up 163 aircraft in front-line units, or 6 to 8 GCs depending on the number of aircraft per Group (20 or 26). The government is about to sign a new order for another 160 H-751s, in addition to those already ordered and the Allison-powered H-81s. These aircraft will be delivered in early 1941.
There's no doubt about it: for months to come, the H-75/751 will remain an essential mount for the efficiency of the Chasse. Nevertheless, the value of the older sub-types is steadily declining. With the entry into service of the Allison-powered H-81s (230 aircraft are due to be delivered to Morocco by November), the Chasse plans to withdraw all surviving H-75s (A2s and A3s) from the front lines. These aircraft could be assigned to training units and certain allied air forces.
As we have explained, the Belgian government is eager to reconstitute fighter units. It might be possible to compensate for the Naval Aviation's use of the B-339s handed over by Belgium by assigning 20 to 30 Curtiss H-75s (A2/3s) to the Aéronautique Militaire.
The government of the Union of South Africa is also keen to increase the size of its fighter forces, especially as SAAF units are currently using completely outdated aircraft. As our government considers South Africa to be an important supplier of various goods of strategic interest, the Chasse would not object to the transfer to the SAAF of 40 to 50 H-75 (A2/3) aircraft by next autumn.
4. The Bloch MB-152/155
Very few MB-152/155s made it to North Africa or Corsica. EMGAA has not yet the exact count, but the total is unlikely to exceed 15 aircraft. They will be assigned to training units. The MB-157 prototype has been evacuated to Casablanca, but while it looks promising on paper, it has not yet made its maiden flight, and we don't know whether it can be produced locally.
5. The Potez 631
By June 25, there were 40 Potez 630s and 631s in North Africa (including aircraft belonging to the Aéronavale and equipping the AC2 squadron, deployed in Malta), and only 18 more were able to leave mainland France in the final weeks of combat. At the same time, 10 aircraft were lost for various reasons in support of operations against Italian forces in North Africa.
The Potez 631 is currently the only long-range fighter available to the French Air Force. However, it is too slow to be an effective interceptor, and not maneuverable enough to engage enemy single-engine fighters on an equal footing. As a result, these twin-engine fighters were mainly used as ground attack aircraft. It was only against the Italian air force that they were successfully used as fighters.
To date, 48 Potez 631s are in service in North Africa, Corsica and Malta, of which 37 belong to the Armée de l'Air (25 operational) and 11 to the Aéronavale (9 operational).
Armée de l'Air aircraft are deployed as part of a night fighter squadron protecting Algiers and Tunis, and as part of a Groupe de Marche sent to reinforce RAF units in the Middle East. To these must be added the 6 aircraft in Djibouti (3 stationed there before June and 3 sent as reinforcements).
Replacing this type of aircraft is a top priority.
6. Other
- D-510 : 33
The Armée de l'Air has agreed to sell 20 of these aircraft to the Belgian Aéronautique Militaire.
- D-501 : 13
8 in AFN, 5 in Côte Française des Somalis (from ES n° 6 to Dakar-Thiés).
- Spad 510: 10
The French Air Force has agreed to transfer these 10 aircraft to the Belgian Military Aviation.
- Koolhoven FK-58: 8
The Armée de l'Air has agreed to sell these 8 aircraft to the Belgian Aéronautique Militaire.
7. Total
The total number of fighter aircraft in service with the French Air Force (not including models or types existing only in very limited numbers) is 711 aircraft (193 MS-406, 272 D-520, 206 H-75/751 and 43 Potez), of which 594 are operational (162 MS-406, 201 D-520, 206 H-75/751 and 29 Potez).
This aircraft is very maneuverable, and fairly well armed with its 20 mm HS-9 cannon (although slower than the HS-404) and two machine guns. the HS-404) and two machine guns, but its speed, acceleration and ceiling are too ceiling are too mediocre to take on the most modern fighters. This type can be considered virtually obsolete in the face of German fighters. In fact, during the during the French Campaign, units equipped with MS-406s bore the heaviest loss/victory ratio. loss/victory ratio. Nevertheless, these aircraft proved to be effective against Italian against Italian aircraft, and can still be used in Africa or in secondary theaters of operation. of operations.
By June 5, 203 MS-406s were already in North Africa and, as mentioned in the first part of this report of this report, 34 were able to be evacuated from mainland France.
Of these 237 aircraft, 44 have been lost to various causes since the start of operations against Italian forces in North Africa. Of the 193 MS-406s currently available in this theater, 31 are so worn out that they must be withdrawn from active service and will shortly be scrapped. By August 10, we need to send 24 MS-406s to the Middle East to reinforce the Allied fighters there, as the RAF seems to be very short of modern fighters in this region. These 24 aircraft will be transported by the aircraft carrier HMS Eagle, which is currently in the port of Algiers. Incidentally, 26 MS-406s were already deployed in Syria, and 6 of them have been sent to Egypt.
Once operations against Italian forces in North Africa had been successfully completed, the MS-406s would be withdrawn from the front lines, with the exception of those that could be deployed against Italian forces in East Africa, or to reinforce air defense in Indochina, where there were already 20 aircraft of this type (8 sent in August 1939 following a decision taken in February, and 12 sent at the end of 1939... by mistake!)
Depending on the number of surviving aircraft, we plan to modernize 30 to 40 of them into MS-410s (notably by fitting them with 12Y-45 engines built by Saurer) to build up a strategic reserve. We also plan to use a number of MS-406s for the fighter schools and CICs (Centres d'Instruction à la Chasse) being reconstituted in Morocco.
2. The Dewoitine D-520
This was undoubtedly the fighter with which we achieved our best results during the French Campaign. Experienced pilots claim that it can turn tighter and dive faster than the latest type of Messerschmitt Bf-109; in his combat report, the officer commanding GC I/3 states that "a 109 that tries to escape by diving is a dead 109." Nevertheless, the aircraft is slower in horizontal flight than the Bf109, and climbs more slowly. Its handling can also pose a few problems for novice pilots.
Counting the last aircraft recently evacuated by GC III/6 and II/7, we now have 377 D-520s at our disposal. Of the 284 Air Force aircraft, 12 are unserviceable due to manufacturing defects, and 71 need repairs or modifications to be fully war-grade. Of the 39 Aeronavale D-520s, 8 need repair and 5 modification. The last 54 aircraft have not yet been accepted by CRAS, even though they have often been evacuated by military personnel.
Ensuring that all D-520s are operational is a top priority for the Chasse.
These aircraft have been spared combat with Italian forces in North Africa, apart from the Aéronavale aircraft operating from Malta and Tunis. To date, only one Air Force unit equipped with this type of aircraft is likely to be engaged in combat in North Africa. N e are currently carrying out, and will continue to do so over the coming weeks, careful maintenance and overhaul operations, so as to have at least 270 aircraft operational by September 15. If we allow for the usual 120% of aircraft in depot reserve, we will then be able to line up 122 D-520s on the front line, i.e. five or six Groups, depending on the size of the Fighter Groups chosen.
We also hope to recover at least 20 operational D-520s from the Aéronavale by the end of the year. Between September and December, the French Navy is due to take delivery of the 81 Grumman G-36As it purchased at the end of 1939. The first of these flew from the Grumman-Bethpage factory at the end of May, and was officially handed over to the French authorities in early July. The Navy acquired a further 100 aircraft of a slightly different type, known as G-36Cs (these aircraft have folding wings like the G-36Bs purchased by the British, but use the same Cyclone G-205 engine as the G-36As).
Returning to the D-520, we can only regret that the loss of the SNCAM factory interrupted the modification program for this aircraft that the Chasse had planned in June. Nevertheless, SNCAM engineers are working at the Algiers AIA on a reduced aerodynamic improvement program based on work carried out from April to June in the Banlève wind tunnel. This limited modification (known as Level 1) should be applied to all wartime D-520s by December.
If the 12Y-51 engines built by Saurer are indeed available, a so-called Level 2 modification program will be launched to convert as many of our D-520s as possible into D-523s. The D-520 no. 45, used by SNCAM as a prototype for the D-523, reached a speed of 570 km/h at recovery altitude, with its full military load.
To improve the D-520's high-altitude performance, SNCAM engineers plan to combine a thorough drag-reduction program with the installation of a 12Y-49 engine. This so-called Level 3 modification could give us an aircraft capable of operating at more than 11,000 meters.
Unfortunately, none of these modification programs will enable the D-520/523 to achieve the performance demanded by the A39 program (640 km/h at recovery altitude). If German industry continues to introduce new fighter types at the current rate, we expect the D-520 to be as outclassed in a year's time as the MS-406 is now. It's impossible to overstate the priority of the Level 2 modification program. However, this program is closely dependent on the availability of Saurer-built 12Y-51 engines.
3. The Curtiss H-75
Until now, the Curtiss H-75 and its derivative H-751 have been the backbone of the Fighter Division's operational units.
The Pratt & Whitney-powered H-75 (A2 and A3 in the manufacturer's nomenclature) is a highly maneuverable aircraft, as agile as the MS-406 and notably more maneuverable than the D520 or Hawker Hurricane. Compared to the MS-406, the Curtiss benefits from better acceleration and an air-cooled engine. The current Bf-109, however, seriously outclassed the aircraft; only magnificent teamwork and esprit de corps beyond all praise prevented H-75-equipped units from suffering far worse losses than they did. Against Italian aircraft, on the other hand, the H-75 has a clear margin of superiority. Whatever the opponent, the weaponry is too weak (6 or even only 4 7.5 mm machine guns), and many H-75 pilots were killed or wounded by German machine-gun fire because they had to get close to their target to be effective.
The Wright Cyclone-powered H-751 (A4 for the manufacturer) is faster and climbs faster.
However, its armament is not superior.
Between June 18 and July 15, 161 Curtiss H-75/751s were evacuated from mainland France, and a further 10 were evacuated in the final days of combat. Meanwhile, between June 20 and August 2, 90 aircraft were delivered to Casablanca, and to date 60 have been assembled by engineers and technicians evacuated from Bourges and Toulouse. Since the beginning of the fighting against Italian forces in North Africa, 25 H-75s have been destroyed in combat or for other reasons.
To date, we have 206 Curtiss fighters in North Africa, 46 of which are of the H-751 subtype. A further 30 aircraft (H-75 and H751) are still in crates or being assembled. With the Curtiss-Buffalo plant having produced 284 H-751s, 90 of which have already arrived in France or North Africa, we are still awaiting delivery to Casablanca of 190 aircraft at a rate of around 60 a month from August to October. In all, 426 Curtiss H-75s will be available by the end of November, excluding losses due to combat or normal wear and tear.
We expect at least 360 aircraft to be operational by this date, enabling us to line up 163 aircraft in front-line units, or 6 to 8 GCs depending on the number of aircraft per Group (20 or 26). The government is about to sign a new order for another 160 H-751s, in addition to those already ordered and the Allison-powered H-81s. These aircraft will be delivered in early 1941.
There's no doubt about it: for months to come, the H-75/751 will remain an essential mount for the efficiency of the Chasse. Nevertheless, the value of the older sub-types is steadily declining. With the entry into service of the Allison-powered H-81s (230 aircraft are due to be delivered to Morocco by November), the Chasse plans to withdraw all surviving H-75s (A2s and A3s) from the front lines. These aircraft could be assigned to training units and certain allied air forces.
As we have explained, the Belgian government is eager to reconstitute fighter units. It might be possible to compensate for the Naval Aviation's use of the B-339s handed over by Belgium by assigning 20 to 30 Curtiss H-75s (A2/3s) to the Aéronautique Militaire.
The government of the Union of South Africa is also keen to increase the size of its fighter forces, especially as SAAF units are currently using completely outdated aircraft. As our government considers South Africa to be an important supplier of various goods of strategic interest, the Chasse would not object to the transfer to the SAAF of 40 to 50 H-75 (A2/3) aircraft by next autumn.
4. The Bloch MB-152/155
Very few MB-152/155s made it to North Africa or Corsica. EMGAA has not yet the exact count, but the total is unlikely to exceed 15 aircraft. They will be assigned to training units. The MB-157 prototype has been evacuated to Casablanca, but while it looks promising on paper, it has not yet made its maiden flight, and we don't know whether it can be produced locally.
5. The Potez 631
By June 25, there were 40 Potez 630s and 631s in North Africa (including aircraft belonging to the Aéronavale and equipping the AC2 squadron, deployed in Malta), and only 18 more were able to leave mainland France in the final weeks of combat. At the same time, 10 aircraft were lost for various reasons in support of operations against Italian forces in North Africa.
The Potez 631 is currently the only long-range fighter available to the French Air Force. However, it is too slow to be an effective interceptor, and not maneuverable enough to engage enemy single-engine fighters on an equal footing. As a result, these twin-engine fighters were mainly used as ground attack aircraft. It was only against the Italian air force that they were successfully used as fighters.
To date, 48 Potez 631s are in service in North Africa, Corsica and Malta, of which 37 belong to the Armée de l'Air (25 operational) and 11 to the Aéronavale (9 operational).
Armée de l'Air aircraft are deployed as part of a night fighter squadron protecting Algiers and Tunis, and as part of a Groupe de Marche sent to reinforce RAF units in the Middle East. To these must be added the 6 aircraft in Djibouti (3 stationed there before June and 3 sent as reinforcements).
Replacing this type of aircraft is a top priority.
6. Other
- D-510 : 33
The Armée de l'Air has agreed to sell 20 of these aircraft to the Belgian Aéronautique Militaire.
- D-501 : 13
8 in AFN, 5 in Côte Française des Somalis (from ES n° 6 to Dakar-Thiés).
- Spad 510: 10
The French Air Force has agreed to transfer these 10 aircraft to the Belgian Military Aviation.
- Koolhoven FK-58: 8
The Armée de l'Air has agreed to sell these 8 aircraft to the Belgian Aéronautique Militaire.
7. Total
The total number of fighter aircraft in service with the French Air Force (not including models or types existing only in very limited numbers) is 711 aircraft (193 MS-406, 272 D-520, 206 H-75/751 and 43 Potez), of which 594 are operational (162 MS-406, 201 D-520, 206 H-75/751 and 29 Potez).