MAC 34T Aviation: Interwar French Turret-Mount Aircraft Gun

During World War One France used the Lewis gun as a flexible aircraft armament, and it was replaced by the Darne in 1922. This was an adoption of convenience, and by 1926 the Chatellerault Arsenal was working on adapting the new Mel 1924 light machine gun for aircraft use. Initial efforts were directed at a wing-mounted model with a high rate of fire and a large (300 rounds) drum magazine. This led in turn to a “turret” model for use in manned flexible mounts.

This gun was designated the Mle 1934 T, and used in several different mounts. Today we are looking at one in the Type 29 mount. It is a sheet metal carriage to enclose the gun, providing a spring counterbalance system for easy maneuvering of the gun and a mount for an early collimator sight.

Video on how collimating sight work:

Video on the Chatellerault Mle 24/29:

Darne Model 1926 aircraft MG:

Many thanks to the French National Forensic Police Department for allowing me access to film this very cool rig for you!