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Renault Modèle D1

Design

Designed by Renault in 1926 to be an infantry medium tank for the defense program. Went into service in 1931.

One of 1st tanks in world to have cast turret. Also the 1st French tank to have a 47 mm gun. Suspension had 2 different sized wheels, with the smaller ones grouped in 2s or 3s, with the larger by themselves. The running gear was protected by plates and the hull was riveted.

Had a 6 speed gear box, and was steered through a Cleveland controlled differential.

Had a radio with a triangular aerial behind the turret.

Most of these tanks were used in North Africa.3

Production

  • Char D1: 160
    • Production: 1932 - ?

Variants

  • Char NC 31 Modifié: A NC 31 that was modified as a development vehicle for the D1.2
  • Char D1 (Type ST2): Had Renault FT18 cast turret installed with a 37 mm gun.2

Specifications

  Renault Modèle D1
Crew 31,2,3
Physical Characteristics  
Weight

31,000 lb
14,000 kg1
12 tons3, 13 tons2, 13.78 tons1

Length

15' 9.25"1, 16', 18' 7"3, 18.94'2
5.9 m, 4.81 m1
18' 11" with tail

Height 7' 7"3, 7.84'2, 7' 10"1
7' 10.5" with aerial
2.4 m1
Width

7' 1"1, 7' 2"3, 7' 3", 7.08'2
2.2 m, 2.16 m1

Ground clearance  
Ground contact length  
Ground pressure (psi)  
Turret ring diameter  
Armament  
Main D 1A: 37 mm
D 1B: 47 mm Sa 34
47 mm SA 341
47 mm2,3
Secondary  
MG 2: 7.5 mm mle 1931 MG1
7.5 mm MG, coaxial, hull
2: 7.5 mm MG, coaxial, hull.2
MG, hull, early production3
2: MG, hull, coaxial, late production3
Side arms  
Quantity  
Main 112
Secondary  
MG 5,000
Side arms  
Armor Thickness (mm) 303 early production
353 late production
352, 401
Hull Front, Upper D 1A: 30
D 1B: 40
Hull Front, Lower  
Hull Sides, Upper  
Hull Sides, Lower  
Hull Rear  
Hull Top  
Hull Bottom 14
Turret Front  
Turret Sides  
Turret Rear  
Turret Top  
Engine (Make / Model) Renault1,2 water cooled2
Cylinders 41,2
Net HP 652, 741
D 1A: 64, 65 early production3, 150
D 1B: 100 late production3
Transmission  
Fuel type Gasoline1
Octane  
Capacity  
Performance  
Traverse 360°
Speed - Road 11.3 mph2, 12 mph, 12.5 mph, 11.55 mph1
19.3 kph, 18.6 kph1
Speed - Cross Country 6.2 mph
Range - Road 56.9 miles1, 90 km1
Turning Radius  
Elevation Limits  
Fording depth  
Trench crossing  
Vertical Obstacle  
Suspension (Type) Coil Spring
Wheels each side 14
Return rollers each side  
Track length  
Tires  
Track width  
Track centers/tread  

Sources:

  1. The Encyclopedia of Tanks and Armored Fighting Vehicles - The Comprehensive Guide to Over 900 Armored Fighting Vehicles From 1915 to the Present Day, General Editor: Christopher F. Foss, 2002
  2. Tanks of the World, 1915-1945, Peter Chamberlain, Chris Ellis, 1972
  3. Tanks of World War II, Duncan Crow, 1979
20th Century American Military History Crucial Site