- T1E4/M13 MGMC - M3 based Multiple Gun Motor Carriage equipped
with the Maxson M33 mount with 2 M2HB machine guns (5,000 rounds). The
T1E4 prototypes had the hull sides removed for easy of working with the
mount. These were reintroduced on production M13s. This was a
development of previous T1s that had all been based on the M2 Half-track Car.
- M14 MGMC - M13 MGMC variant, based on the M5 chassis. Supplied under lend-lease to Britain (5,000 rounds).
- M16 MGMC - M3 based Multiple Gun Motor Carriage equipped with the Maxson M45 Quadmount (more specifically the M45D) with 4 M2HB machine guns (5,000 rounds).
- M16A1 MGMC - Standard M3 Personnel Carriers converted to Multiple Gun Motor Carriages by removing rear seats and installing a Maxson M45 mount (more specifically the M45F, which featured folding "bat wing" gun shields on both sides of the mount over the machine guns). These vehicles are easily identified by the lack of the folding armored hull panels found on purpose-built M16s.
- M16A2 MGMC - M16 MGMC variant, basically M16s brought up to M16A1 standard and with the addition of a rear door to the hull compartment. For existing M16s, this essentially meant a replacement of the M45D mount for the M45F mount.
- M17 MGMC - M16 MGMC variant, based on the M5 chassis. Sent under lend-lease to USSR (5,000 rounds).
- T58 - Similar to the M16/M17, the T58 featured the Maxon quad-mount fitted to a special electric powered turret. Prototype only.
- T28E1 CGMC - M3 based Combination Gun Motor Carriage equipped with one M1A2 37mm autocannon (240 rounds) flanked by 2 M2WC machine guns (3,400 rounds). The original T28 had been based on the shorter M2 Half-Track Car chassis.
- M15 CGMC - T28E1 variant, equipped with an armored superstructure on the turreted mount to provide crew protection, and switched to M2HB machine guns.
- M15A1 CGMC - Reorganization of the weapons, with the M2HB machine guns being fitted under the M1A2 37 mm autocannon instead of above as on the M15.
- T10E1 - Variant to test the feasibility of mounting US made copies of the Hispano-Suiza HS.404 20 mm cannon on modified Maxson mounts. All were later rebuilt as M16s. The original T10 was based on the shorter M2 Half-Track Car chassis.
- 40 mm Experiments - Various attempts were made to mate the 40 mm Bofors
L/50 gun to the M3 chassis. In all cases the weapon's recoil was too
severe or the mounting too heavy, and the attempts were finally stopped
with the adoption of the M19 MGMC on the M24 light tank chassis.
- T54/E1 - Tested in 1942, the gun mount quickly proved to be unstable when fired, and the improved T54E1, which also added a circular armored shield and rear armor to the vehicle, could not fix the inherent problem. Prototype only.
- T59 - A development of the T54/E1, fitted with outriggers to
help stabilize the vehicle during sustained firing. Still proved to be
too unstable for anti-aircraft use. Prototype only.
- T59E1 - T59 fitted with the T17 fire control system. Prototype only.
- T60/E1 - Similar to the T54 and the T59, but featured two .50 caliber M2 machine guns flanking the 40 mm cannon (the mounting's designation was T65). The T60E1 featured an armor configuration similar to that of the T54E1. Suffered from the same stability issues of previous attempts. Prototype only.
- T68 - Perhaps the most radical of the experiments, the T68 featured two 40 mm cannons, one mounted on top of the other, plus a stabilizer on top of the two guns. The recoil force proved to be too much for the mount, and the idea was abandoned. Prototype only.
- M15 "Special" - Field conversions by US Army depots in Australia of standard M3s, not M15s, fitted with turreted 40 mm Bofors L/50 guns. These were the only successful mating of this weapon to the M3 chassis, and were used more for direct fire support than for anti-aircraft purposes.
From Wikipedia, the free encyclopedia
The model has been detailed for an Ardennen-diorama, what is not ready yet . . .