Image: M9A1 Half-Track (US Army Photo)
YearMarch 1943
Vehicle Type[@type]
Origin & Designer[@designer]
Numbers Produced3.433
Crew3 (Commander, Driver & Assistant Driver + 7 Troops)
Main Armament1 x .50 cal M2HB Heavy Machine Gun
Main Armament[@sponson_traverse]
Turret Traverse[@turret_traverse]
Gun Traverse[@gun_traverse]
Gun Mount[@gun_mounts]
Maximum Range[@maximum_range]
Armour Penetration[@armour_penetration]
Gun Sight6.15m
Secondary Armament3 x .30 cal M1919A4 Machine Guns
Smoke Discharger[@smoke_discharger]
Ammunition Carried700 x .50 cal & 7.750 x .30 cal
Combat Weight9.620 kg
Ground Clearance0.28m
Fording Depth0.81m
Trench Crossing0.76m
Obstacle Clearance0.30m
Climbing Ability31°
ArmourHull Gun Mantlet: 15.9mm.
Upper Hull Front: 7.9mm.
Lower Hull Front: 7.9mm.
Upper Hull Sides: 7.9mm.
Lower Hull Sides: 7.9mm.
Hull Rear: 7.9mm.
Hull Top: Open.
Hull Bottom: 7.9mm.
Hood: 7.9mm.
EngineInternational Harvester RED-450-B (Petrol)
Transmission4 Forward & 1 Reverse
Maximum Road Range198 miles (320 km)
Maximum Cross Country Range175 miles (282 km)
Maximum Water Range[@maximum_water_range]
Maximum Road Speed42 mph (68 kph)
Maximum Cross Country Speed7 mph (12 kph)
Maximum Water Speed[@maximum_water_speed]
VariantsM9A1: Ring mounted .50 cal.
NotesThe M9 was similar to the M5 and also produced by International Harvester, but with storage systems in line with the M2. It had a pedestal mounted heavy machine gun which was altered on later variants to a ring mount plus Pintle three mounts for .30 cal machine guns. As with the M5 the M9 was allocated to lend lease and saw service with British and Soviet forces in World War Two.