| Morane-Saulnier D-3801 (GC LaFayette) | |
| Role | Fighter |
|---|---|
| Manufacturer | Morane-Saulnier |
| First flight | 8 August 1935 (M.S.405) |
| Introduction | 1938 |
| Status | Retired |
| Primary users | French Air Force Finnish Air Force Swiss Air Force Turkish Air Force |
| Number built | 1,176 |

During May 1938, the 2nd Escadrille of the 7th Groupe de Chasse at Reims conducted operational testing of the type using a handful of pre-production M.S.406 aircraft. In spite of some accidents experienced, pilots were commonly pleased with the type's performance; in response to the accidents, improvements such as the strengthening of the undercarriage and the cabin hood were implemented during mid-1939. In spite of complaints regarding the forward fuselage exterior covering and motor attachments, no corrective actions were implemented to address these concerns..
Morane-Saulnier MS.406 N° 847, white 05 of Groupe de Chasse I/6, May 1940.
Ceiling
Range
Aircraft Speed
Max Crew
The Morane MS406 comes from the C1 program of July 1934 to replace the Dewoitine D500 and Loire 46. One of the main demands is a maximum speed of 400 km / h. This program offered two categories: light fighter and average fighter with a maximum weight of 2.5 tons. The C1 program underwent two evolutions, one of which carried the maximum speed requested at 450 km / h. Among the candidates, only two were selected: the Bloch MB152 and the Morane MS405. The prototype of this last took off for its first flight on August 8, 1935 with Michel Detroyat at the controls. The aircraft underwent tests for about a year and proved to be healthy at 491 km / h.
At the beginning of 1940, facing the supremacy of the Messerschmitt BF109E, an improved version of the Morane MS406 was born: the MS410.
On May 10, 1940, the Morane MS406 equips 10 of the 22 groups of fighters. Losses in units equipped with MS406 are significant, and some missions entrusted to them without great results, such as ground strafing, are particularly deadly.