The Maginot Line - A misunderstood history

Turret AM and 50mm mortar

Canon AC Mle 1934 25mm combined with two MAC Mle 1931 machine guns and one model 1935 mortar

This single-piece cast turret was the last turret model designed and was produced in very small numbers (7). It combined the best of several features of a number of cupola’s. Six of these can be found on CORF casemates and small ouvrages in the North, and one on combat block nine of ouvrage Anzeling (SF de Boulay).

It was designed as a retractable alternative for an AM cupola, the machine gun turret and a cupola LG. It housed one AM weapon and a 50mm grenade launcher. A periscope type L 4 (magnification 1.25x) was available, so that even when the turret was retracted, observation was possible.

Height Outer ø
Armour Weight
Basic model 1.13 m 2.55 m 30cm (sides)
35cm (top)

It was capable of direct and indirect fire, observation and could be hidden from enemy guns. It’s small size and tough casting made it hard to take out.

Another advantage was that the mechanism to lower and raise the turret, needed less space/volume below ground. Instead of a pivot and a counterweight (the usual mechanism for retractable turrets) it had three vertical counterweights attached to chains, set 120 degrees apart, thus arranged in a triangle.

Unfortunately, because there is just one turret left (and this one is in retracted position) there is very limited photographic material available to get a good vieuw of the layout of the embrasures.