Twin 20mm Gun Motor Carriage T10E11-6

T10E1: General
Date of first acceptance March 1944 Total acceptances 110
(109 converted to MGMC M16)
Manufacturer White Motor Co. Crew 5 men
T10E1: Dimensions
Combat weight 19,500lbs
8,850kg		 Height 96.75"
245.7cm
Length with winch 256"
650cm		 Gun overhang forward 0"
Width 77.9"
198cm		 Front tread 64.5"
164cm
Rear tread 63.8"
162cm		 Wheelbase 135.5"
344.2cm
Ground clearance 11.2"
28.4cm
T10E1: Armament
Type Mount Ammunition Traverse Max traverse rate Elevation
Two 20mm Guns Mark IV T17E1 3,000 rounds 360°
(electric)		 60°/sec +90° to -10°
(electric)
Aiming equipment
Reflex sight Mark IX for gunner
T10E1: Armor
Assembly
Bolting
Hull
Rolled face-hardened steel
Location Thickness Angle from vertical
Radiator louvres .25"
.64cm		 26°
Windshield cover .50"
1.3cm		 25°
Sides .25"
.64cm		 0°
Rear .25"
.64cm		 0°
Hood top .25"
.64cm		 83°
Turret
Rolled face-hardened steel
Location Thickness Angle from vertical
Shield .25"
.64cm		 0° to 35°
T10E1: Automotive
Engine White 160AX; 6 cylinder, 4 cycle, in-line gasoline
Horsepower Net: 147@3,000rpm Torque Net: 325 ft-lb@1,200rpm Fuel capacity 60gal
230L
Transmission Spicer 3461 constant mesh, 4 speeds forward, 1 reverse
Steering Steering wheel
T10E1: Suspension
Type Road wheels Track return rollers
Front: Semi-elliptic longitudinal leaf spring
Rear: Vertical volute spring		 Front: Steel ventilated disc
Rear: 1 bogie/track;
4 dual/bogie		 1 dual/track
Drive sprockets Idlers Shock absorbers
18-tooth front drive Spring-loaded at rear of track On front wheels
T10E1: Track
T68E1
Center guide band type
Width 12"
30cm		 Pitch 4"
10cm		 Pitches/track 58 Track ground contact length 46.75"
118.7cm
T10E1: Performance
Max level road speed 45mph
72kph		 Max grade 60%
Max vertical obstacle 12"
30cm		 Min turning diameter 59'
18m
Max fording depth 32"
81cm		 Cruising range ~200mi, roads
~320km, roads

The T10E1 was armed with two Oerlikon 20mm guns in modified Maxson M45 turrets which could also accept four .50cal MGs. The turrets were installed on modified M16 MGMCs, however all but one of the T10E1s produced were returned to their .50cal configuration. The first production vehicle was retained by Aberdeen Proving Ground out of historical interest.

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References

  1. Hunnicutt, R.P. Half-Track: A History of American Semi-tracked Vehicles. Navato, CA: Presidio Press, 2001. Reprinted from Half-Track, R.P. Hunnicutt ©2001, available from Presidio Press, 505B San Martin Drive, Suite 160, Navato, CA 94945.
  2. Doyle, David. U.S. Half-tracks: The Development and Deployment of the U.S. Army's Half-track Based Multiple Gun Motor Carriages and Gun Motor Carriages, Part two. Ed. Pat Stansell. Delray Beach, FL: The Ampersand Publishing Group, Inc., 2016.
  3. Sola, Samuel, Vincent Bobkowski, and Kara Crocker. Weapon Mounts for Secondary Armament. Santa Monica, CA: G. O. Noville & Associates, Inc., April 1957.
  4. Crismon, Fred W. U.S. Military Tracked Vehicles. Osceola, WI: Motorbooks International, 1992.
  5. Chamberlain, Peter, and Chris Ellis. British and American Tanks of World War Two. Frome, England: Cassell & Co., 2000.
  6. Track Data. Warren, MI: Track & Suspension Laboratory, Components Research and Development Laboratories, Research & Engineering Directorate, US Army Tank-Automotive Center, 23 June 1965.
Last updated 4 Mar 2024.
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© Copyright 2001-24 Chris Conners