Land Weapons

General Motors

M36 Jackson

The M36 Jackson was the last and most powerful tank destroyer designed by the US. It was the first major US combat vehicle to be equipped with the 90-mm M3 gun, the only US gun capable of defeating late-war German armor at long range. This was to be fitted on the same hull as the M10, but the extra size and weight of the M3 gun required the turret to be redesigned with a rounder shape while retaining the prominent counterweight at the rear (which could also fit additional ammunition). The M36 was rushed into service in Northwest Europe in the autumn of 1944, where it complemented (but never replaced) existing M10 and M18s, and gave a good showing against the German tanks and assault guns it faced. It was also used extensively during the Korean War by which time the turret had been fitted with an armored roof, something that had been absent on previous US tank destroyer designs. It was also exported to numerous countries including the former Yugoslavia, where it was in action during the civil war by both Croatian and Serbian forces. They were also used by the French in Indochina and by Pakistan in the Indo-Pakistani war of 1965.

The prototype T71 was built in early 1943 by fitting the 90-mm M3 gun on an M10 chassis (itself based on the M4 Sherman). This was then standardized as the 90-mm Gun Motor Carriage M10. The only variants were the M36B1 which had the M3 gun directly installed on a M4A3 hull, while the M36B2 used the hull of the M10A1 and was powered by a GM 6046 diesel. These represented around a quarter of total production.

M36 Jackson (US Army)
M36

Preceded by:

M18 Hellcat (1943)

Succeeded by:

None

Datafile

DesignM36M36B1M36B2
NameJacksonJacksonJackson
TypeTank DestroyerTank DestroyerTank Destroyer
Year194419441945
Crew555
Dimensions
Length (w/Gun)5.98 m (7.46 m)6.27 m5.98 m (7.46 m)
Width3.05 m2.55 m3.05 m
Height3.19 m2.66 m3.19 m
Weight
Loaded27,670 kg30,840 kg29,940 kg
Ground Pressure0.95 kg/cm²0.96 kg/cm²0.86 kg/cm²
SuspensionVertical voluteVertical voluteVertical volute
Performance
Speed (Off-Road)42 km/h42 km/h40 km/h
Range (Off-Road)180 km160 km180 km
AmphibiousNoNoNo
Fording0.91 m0.91 m1.07 m
Vertical Obstacle0.46 m0.61 m0.48 m
Trench2.29 m2.29 m2.29 m
Gradient60%60%60%
Powerplant
Engine1 x 450-hp
Ford
GAA
1 x 450-hp
Ford
GAA
1 x 375-hp
General Motors
6046
FuelGasolineGasolineDiesel
Power/Weight16.26 hp/t14.59 hp/t12.53 hp/t
Armament
Main1 x 90-mm L/52
90-mm M3
Rifled Gun (47)
↑ 20° / ↓ -10° / ↔ 360°

1 x 90-mm L/52
90-mm M3
Rifled Gun (47)
↑ 20° / ↓ -10° / ↔ 360°

1 x 90-mm L/52
90-mm M3
Rifled Gun (47)
↑ 20° / ↓ -10° / ↔ 360°

Secondary1 x 12.7-mm
1 x 7.62-mm (b)
1 x 12.7-mm
1 x 12.7-mm
Armor
TypeSteelSteelSteel
Thickness10 - 76 mm10 - 76 mm10 - 76 mm
Max Effective91 - 108 mm RHAe91 - 108 mm RHAe91 - 108 mm RHAe
Hull Upper Front38.1 mm / 55°38.1 mm / 55°38.1 mm / 55°
Hull Lower Front50.8 mm / 56°50.8 mm / 56°50.8 mm / 56°
Hull Upper Sides19.1 mm / 38°19.1 mm / 38°19.1 mm / 38°
Hull Lower Sides25.4 mm25.4 mm25.4 mm
Hull Lower Rear19.1 mm19.1 mm19.1 mm
Hull Top19.1 mm19.1 mm19.1 mm
Hull Bottom12.7 mm12.7 mm12.7 mm
Turret Mantlet76.2 mm / 45°76.2 mm / 45°76.2 mm / 45°
Turret Sides31.75 mm / 5°31.75 mm / 5°31.75 mm / 5°
Turret Rear44.45 mm44.45 mm44.45 mm
Turret Top9.52 mm9.52 mm9.52 mm
Production
Built1,413187724
Total1,772

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