T-70

soviet flagRussian light battle tank T-70.
History, development, service, specifications, statistics, pictures and 3D model.

T-70 of the Polish forces

T-70 of the Polish forces wich fought alongside the Russians from 1943.

T-70
Type: Russian light battle tank.

History:

Develop of the T-70 by N. Astrov’s staff started right at the end of 1941. The essential goal would be to boost the frontal armour as much as 45mm to be able to shield the tank from 37mm guns, and also to improve the main gun at minimum to a 45mm gun in order to provide the crew a moderate odds if German tanks were spotted. As painful as was the 2-man turret crew on the T-34, the one-man crew turret on the T-60 and T-70 light tanks made platoon co-ordination almost hopeless to all but the most trained. Nevertheless, this characteristic proceeded to go the same. Like that of the T-60, the hull of the new T-70 was retained uncomplicated for simplicity of production. The engine design was unusual, composed of a couple of GAZ-202 truck motors, a single on every side of the hull, each power plant running a single track by way of independent, unsynchronized truck transmissions. The objective was to make use of as much accessible elements as possible, however this was to turn out a disaster. The turret was conical like that on the T-30, with a common 45mm tank gun. A few T-70 were manufactured in the heat of the period, but even before they could be supplied, it was obvious that the powertrain design was entirely unsatisfactory. The Astrov team remodeled it by putting the 2 motors in a row and utilizing a regular transmission and differential layout. To ease production, the turret has also been remodeled to make use of flat armour plate, and it was relocated to the left, with the engines to the right.

The T-70M was approved by the GKO for Red Army service in March 1942, but is typically named merely the T-70. A few of the first tanks nevertheless employed the first conical turret, however this was substituted with the flat panel turret after April 1942. T-70 creation occurred at Zavod Nr. 37 and together with T-60 production at GAZ and Zavod Nr. 38. It entirely replaced the T-60 in September 1942. The T-70 stayed being produced ’till the end of October 1943, by which time plenty of 8,226 had been produced.
The last manufacturing models (T-70A from mid-1943) employed the more potent GAZ-203 engine coupled with additional hull upgrades like a traversable MK-4 periscope for the driver instead of a basic view-slit. Operating, the T-70 been found useful but unexceptional.

In 1942, the Astrov staff started upgrading it to have capacity for a 2-man turret crew. This came out as the T-80 in the fall of 1943. The T-80 was basically the same as the T-70 apart from the new bigger turret, increased suspension, larger track and electrical turret traverse. Although a really smart light tank design, at this time of world war 2, Russian tank crews preferred a much more heavily armed tank to deal with newer German types, such as Panzer V Panther, Tiger tank and up-gunned Panzer IV. The resources committed to a T-80 might be far better used on producing the SU-76 which made use of identical elements but had greater firepower. Furthermore, by this point, sufficient quantities of Lend-Lease light tanks such as the Valentine became accessible for employed tasks previously fulfilled by the T-70 and T-60. No more than 120 T-80s were manufactured prior to when manufacturing was ceased. This was the final light tank accepted by the Red Army during WW2, however towards the war’s end, development started on a fresh amphibious light tank, the K-90.

Users: Red Army (for all variants).


Animated 3D model T-70


Specifications for T-70 Model 42

Specifications
T-70 Specification
Type light battle tank
Engine Two GAZ-202 engines with 2 x 70 hp
Gearbox ?
Crew total 2
Turret crew 1
Length 14 ft 0.9 in (4.29 m)
Width 7 ft 7.3 in (2.32 m)
Height 6 ft 8.3 in (2.04 m)
Weight 9.2 tons
Maximum speed 28 mph (45 km/hr)
Cross-country speed ?
Fuel consumption per 100 km 122 liters
Fuel 440 liters
Road radius 224 miles (360 km)
Cross-country radius 110 miles (180 km)
Vertical obstacle 2 ft 3.6 in (0.71 m)
Trench crossing 10 ft 2.8 in (3.12 m)
Fording depth ?
Turning circle ?
Gradient 34°
Armour
T-70 mm angle
Turret front 60 ?
Turret side 35 ?
Turret rear 35 ?
Turret top 10 ?
Superstructure front
Superstructure side
Superstructure rear
Superstructure top
Hull front 45 ?
Hull side 45 ?
Hull rear 35 ?
Hull top 10 ?
Hull bottom 10 ?
Gun mantlet ? ?
Armament and Equipment
T-70 Specification
Main armament 45-mm-gun L/46
Rounds 94
Traverse 360° (hand)
Elevation ?
Max effective range ?
Secondary armament one 7.62 mm DT MG with 945 rounds (number of rounds for T-70A)
Radio 9RF (range 24 km – only in unit leader vehicles)
Telescopic sight ?
Penetration mm at 0° armour plates of the gun
Range APCBC DS (limited) HE
100 meters ? ?
500 meters 42 mm 80 mm
1000 meters 38 mm 50 mm
1500 meters ? -
2000 meters ? -
Muzzle velocity 2,493 ft/s (760 m/s) 3,511 ft/s (1,070 m/s) 2,461 ft/s (750 m/s)
Shell weight 3.1 lbs (1.4 kg) 1.87 lbs (0.85 kg) 4.6 lbs (2.1 kg)
Production
T-70 data
Production March 1942 – October 1943
Combat delivery immediately after production delivery
Price per tank ?
Total production figure 8,226 (all variants)
Service statistics of all T-70s
Year Available Production Losses
before 1939 -
1939 - -
1940 -
1941 -
1942 4,883 ?
1943 ? 3,343 ?
1944 ? ?
1945
Total - 8,226 ?
Call of War
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