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U.S WW2 HALF TRACK Forces Of Valor 1/32

 

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History

The M3 halftrack started development in the 1920's and became the Half-Track M2 as a gun motor carriage. French-built Citroen-Kegresse variants were purchased for trials by the US Military and engineers went to work, melding the hull of a White Scout Car M2 to the Kegresse halftrack suspension. Production ensued in 1941 and halftracks rolled off assembly lines in the thousands.
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The M2 graduated to the designation of M3 Halftrack as the halftrack became a full-fledged armored personnel carrier. In this way, the M3 effectively replaced the M2. A .50 caliber heavy machine gun was mounted to the cab rooftop (a pulpit mount would later make the M3 the M3A1) and a pintle-mounted .30 caliber light machine gun was stowed in the rear (original M3's did not include the .30 caliber machine gun mount - the M3A1 did however). Original M3's would have the .50 caliber pintle-mounted in the center of the rear quarters. A longer hull and bench seating also was part of the M3 models.

Halftracks came in a multitude of 'looks' as can be seen from the canvas sided rear quarters, to the open top or armor-plated versions. The halftrack chassis was also used for a variety of armament mounts, one which included a shielded anti-aircraft version that wielded quad-fifty caliber heavy machine guns. Seating varied per model from 10-13 occupants. Anti-tank mine racks were often fitted to the sides for operational vehicles.

The US Army began to scale back production of halftrack vehicles by 1944 in favor of fully-tracked vehicles. The British were using American halftracks in the battles raging across North Africa.

The Israeli Army is reported to still utilize the halftrack (albeit refurbished and modernized to some extent) in some limited supplementary roles. Other nations continue to use the American halftrack as a battlefield recovery vehicle. Production of American halftracks numbered 41,170. The halftrack was also shipped to the Soviet Union in large numbers from 1942 onwards through the Lend-Lease Act.

Major Series Variants:

• M2 - Base Production Model (gun tractor)
• M3 - Longer hull; APC variant; White 160AX engine.
• M3A1 - Circular pulpit gun mount introduced
• M3A2 - Designed as mortar carrier, APC or air defense system.
• M3 - Communications Variant
• M3 - Ambulance Variant
• M3 - Artillery Tow Vehicle
• M3 - Mortar Carrier
• M16 MGMC - Quad-50 Air Defense Variant
• M5 - Alternative production methodology; Lend-Lease production model.
• M5A1 - M5 with M49 machine gun mount
• M5A2 - M5 and M5A1 combination production
• M9
• T-12/M3 GMC - 75mm Gun Motor Carriage
• T12 HMC - 75mm or 105mm Pack Howitzer
• T48 GMC - 57mm Gun Motor Carriage
• T30 HMC - M1A1 75mm Gun Motor Carriage
• T38 HMC - T7 105mm Pack Howitzer
• T19 HMC - M2A1 105mm Howitzer
• M21 MMC - 81mm Motor Mortar Carriage
• T21 - 4.2 inch mortar carrier (never produced)
• M13 MGMC - 2 x 12.7mm machine gun AA variant.
• M16 MGMC - Shielded 2 x 12,7mm gun AA variant.
• M16A2 MGMC - Addition of rear door to hull.
• M17 - Based on M5 chassis for Lend-Lease to Soviet Union.
• T58 - Quad-Fifty mount with electrically powered turret (prototype)
• M15 CGMC - 2 x 12.7mm heavy machine guns fitted above 37mm autocannon with added crew protection.
• M15A1 CGMC - 2 x 12.7mm machine guns fitted under 37mm autocannon.
• M15 Special - Fitted with 40mm Bofors L/50 guns.
• Various other minor prototype versions as well.









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M3A1: General
Date of first acceptance October 1943 Total acceptances 2862 + 2209 converted from personnel carriers M3 + 1360 converted from 75mm GMC M3 + 281 converted from 57mm GMC T48 + 90 converted from 105mm HMC T19
Manufacturers
  • Autocar Co.
  • Diamond T Motor Car Co.
Crew 13 men
M3A1: Dimensions
Combat weight 20,500lbs
9300kg
Height 106"
269cm
Length with winch 249.63"
634.06cm
Width over mine racks 87.50"
222.3cm
Front tread 64.5"
164cm
Rear tread 63.8"
162cm
Wheelbase 135.5"
344.2cm
Ground clearance 11.2"
28.4cm
M3A1: Armament
Type Mount Ammunition Traverse Elevation
.50cal M2HB MG Flexible on ring mount M49 700 rounds 360°
(manual)
Manual
.30cal M1919A4 MG Flexible on pintle mounts 7750 rounds 360°
(manual)
Manual
M3A1: 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
Rear .25"
.64cm
Hood top .25"
.64cm
83°

 

M3A1: Automotive
Engine White 160AX; 6 cylinder, 4 cycle, in-line gasoline        
Horsepower Net: 147@3000rpm Torque Net: 325 ft-lb@1200rpm Fuel capacity 60gal
230L
Transmission Spicer 3461 constant mesh, 4 speeds forward, 1 reverse        
Steering Steering wheel        
M3A1: 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
M3A1: Track
Center guide band type
Width 12"
30cm
Pitch 4"
10cm
Pitches/track 58 Track ground contact length 46.75"
118.7cm
M3A1: 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

 

 

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Par lafoy - Publié dans : U.S WW2 HALF TRACK Forces Of Valor 1/32
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