90mm Gun Motor Carriage M361-6
M36: General
Date of first acceptance April 1944 Total acceptances 1413
Manufacturers
  • Fisher Tank Arsenal
  • Massey Harris Co.
  • American Locomotive Co.
  • Montreal Locomotive Works
Crew
5 men:
  • Commander in turret right rear
  • Gunner in turret right front
  • Loader in turret left
  • Driver in hull left front
  • Assistant driver in hull right front
M36: Dimensions
Combat weight 63,000lbs
29,000kg
Height over AAMG 129"
328cm
Length without gun 235.1"
597.2cm
Gun overhang forward without muzzle brake 58.8"
149cm
Width 120"
305cm
Tread 83"
211cm
Ground clearance 17"
43cm
Fire height 85"
220cm
Turret ring diameter 69"
175cm
Ground pressure, zero penetration 12.9psi
.906kg/cm²
M36: Armament
Type Mount Ammunition Traverse Max traverse rate Elevation
90mm Gun M3 M4 in turret 47 rounds
(11 ready)
360°
(manual and hydraulic)
24°/sec +20° to -10°
(manual)
.50cal M2HB MG Flexible in turret AA mount 1000 rounds 360°
(manual)
-- Manual
M36: Armor
Assembly
Welding
Hull
Rolled and cast homogeneous steel
Location Thickness Angle from vertical
Upper front 1.5"
3.8cm
55°
Lower front 4.25" to 2.0"
10.8cm to 5.1cm
0° to 56°
Upper sides .75"
1.9cm
38°
Lower sides 1.0"
2.5cm
Rear .75"
1.9cm
0° to 38°
Front top .75"
1.9cm
90°
Rear top .375"
.953cm
90°
Floor .5"
1.3cm
90°
Turret
Rolled and cast homogeneous steel
Location Thickness Angle from vertical
Front (gun shield) 3.0"
7.6cm
Sides 1.25"
3.18cm
Rear 1.75" to 5.0"
4.45cm to 13cm
Top .375" to 1.0"
.953cm to 2.5cm
90°
M36: Automotive
Engine Ford GAA; 8 cylinder, 4 cycle, 60 vee gasoline
Horsepower Net: 450@2600rpm
Gross: 500@2600rpm
Torque Net: 950 ft-lb@2200rpm
Gross: 1040 ft-lb@2200rpm
Fuel capacity 192gal
727L
Transmission Synchromesh, 5 speeds forward, 1 reverse
Steering Controlled differential, steering levers
Brakes Mechanical, external contracting
M36: Suspension
Type Road wheels Track return rollers
Vertical volute spring 3 bogies/track;
2 wheels/bogie
1 at rear of each bogie
Drive sprockets Idlers Shock absorbers
13-tooth front drive Adjustable at rear of track None
M36: Track
T48
Outside guide, double pin, chevron, rubber
Width 16.56"
42.06cm
Pitch 6"
15cm
Shoes/track 79 Ground contact length 147"
373cm
T49
Outside guide, double pin, parallel bar, steel
Width 16.56"
42.06cm
Pitch 6"
15cm
Shoes/track 79 Ground contact length 147"
373cm
T51
Outside guide, double pin, smooth, rubber
Width 16.56"
42.06cm
Pitch 6"
15cm
Shoes/track 79 Ground contact length 147"
373cm
T54E1
Outside guide, double pin, chevron, steel
Width 16.56"
42.06cm
Pitch 6"
15cm
Shoes/track 79 Ground contact length 147"
373cm
M36: Performance
Max level road speed 26mph
42kph
Max trench 90"
230cm
Max grade 60% Max vertical obstacle 24"
61cm
Min turning diameter 62'
19m
Max fording depth 36"
91cm
Cruising range ~150mi, roads
~240km, roads


The 90mm GMC M36 was completed by installing a new turret on the hull of the 3" GMC M10A1; both new production hulls and M10A1s returning from the field were converted. Muzzle brakes were able to be fitted to all M36s except the first 600, since these early vehicles lacked the new equilibrator, stronger elevation mechanism, and stronger gun travel lock that were prerequisites for muzzle brake installation. Like other US tank destroyers, the M36 was open-topped, but a folding armored roof kit was developed to protect the crew from artillery airbursts. The kit still allowed 360° visibility, however, since it was elevated a short distance from the top of the turret.

The M36 had a large bustle on the turret rear that acted both as a counterweight to the 90mm gun as well as holding eleven 90mm ready rounds. The gun shield on the M36 was rounded, compared to the more pointed appearance of the M10's gun shield. Due to the high ground pressure, later M36s were fitted with the spaced-out suspension that was tested in the -E9 series of M4 Sherman which allowed extended end connectors to be attached to both the inside and outside of each track.

Beginning in October 1944, Fisher Tank Arsenal began production of 187 M36B1s. These were constructed by mating the 90mm M36 gun turret with the hull of the late-production M4A3 Sherman. Internal stowage was rearranged to accomodate the larger 90mm rounds, and the bow machine gun was retained.

Eventually supplies of M10A1 hulls were used up, so starting in May 1945 American Locomotive and the Montreal Locomotive Works began using diesel-powered M10 hulls, yielding M36B2. A total of 724 M36B2s were produced.


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References

  1. Hunnicutt, R.P. Sherman: A History of the American Medium Tank. Navato, CA: Presidio Press, 1994.
    Reprinted with permission from Sherman, R.P. Hunnicutt ©1994, available from Presidio Press, 505B San Martin Drive, Suite 160, Navato, CA 94945.

  2. TM 9-374 90-mm Gun M3 Mounted in Combat Vehicles. Washington, DC: War Department, 11 September 1944.

  3. Chamberlain, Peter, and Chris Ellis. British and American Tanks of World War Two. Frome, England: Cassell & Co., 2000.

  4. Siemers, Cary. "USA's M36, M36B1, M36B2 Tank Destroyers." World War II Tanks & Vehicles and Advanced Squad Leader. 26 Jan 2001. 7 Feb 2001 <http://www.shadowsfolly.com/WWII/USA/M36TD.htm>.

  5. Zuljan, Ralph. "M36 Tank Destroyer." Second World War Armor. 16 Mar 2000. 7 Feb 2001 <http://www.onwar.com/tanks/usa/fm36.htm>. Second World War Armor

  6. Teo, Terence. "M36 Jackson page." E-mail to the author. 23 Nov 2010.



Last updated 31 Dec 2012.

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