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Tractor Clone

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"Council of People's Commissars of the USSR
October 1945
Moscow, Kremlin

The Council of People's Commissars decrees that:
  1. The Caterpillar model D-7 tractor is approved for production at the Kirov factory in Chelyabinsk under the index Stalinets-80 (S-80).
  2. The Kirov factory is forbidden from making changes to the S-80 design, aside from changes necessary to begin production, and changes approved by the People's Commissar of Tank Production.
  3. The production quota for the S-80 at the Kirov factory in Chelyabinsk is 10,000 units per year by 1949.
  4. The People's Commissar of Tank Production (comrade Malyshev) and Central Planning must present the Council with a production plan and measures to aid in production of the Stalinets-80 (S-80) in 1946.
Chair of the Council of People's Commissars, I. Stalin
Affairs Manager of the Council of Commissars, Ya. Chadayev

Comparative characteristics of tracked diesel tractors D-7 and S-65
Tractor type

D-7

S-65

Nominal hp

Total power

92

82


Useful power

80

65

Drag hp

Total power

73

65


Useful power

61

50

RPM


1000

850

Gears

Forward

5

3


Reverse

4

1

Speed (kph)

Slow gear

2.25

-


1st gear

3.54

3.6


2nd gear

5.15

4.85


3rd gear

7.4

6.95


Fast gear

9.7

-

Towing force, kg




At nominal power

Slow gear

9690

-


1st gear

6100

5100


2nd gear

4100

3500


3rd gear

2700

2100


Fast gear

2060

-

At drag power

Slow gear

7600

-


1st gear

4800

4000


2nd gear

3200

2800


3rd gear

2100

1800


Fast gear

1600

-

Fuel consumption, g/hp-hour

210

220

Mass (kg)

Tractor

11,000

11,200


Engine

2000

2000

Ground pressure (kg/cm2)

0.5

0.5

"

CAMD RF 81-12086-265

The D-7 was adopted by the Red Army to tow even its heaviest artillery pieces.


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