Minneapolis 39-57 tractor specifications

1928 - 1929

1928 - 1929 Standard-tread tractor

Production

Production Manufacturer:Minneapolis (a part of Minneapolis Threshing Machine Company)
Type:Standard-tread tractor
Factory:Hopkins, Minnesota, USA

Minneapolis 39-57 Power

Minneapolis 39-57 Power Drawbar (claimed):39 hp
29.1 kW
Belt (claimed):57 hp
42.5 kW
Drawbar (tested):47.77 hp
35.6 kW
Belt (tested):64.55 hp
48.1 kW
power test details ...

1928 - 1929

Standard-tread tractor

Nebraska Tractor Test 163

Nebraska Tractor Test 163
June 5 - 14, 1929 Link: Nebraska Tractor Test 163 file
Belt power (max):	64.55 hp 48.1 kW
Belt fuel use (max):	6.4 gal/hour 24.2 l/hour
Drawbar performance
Max power:	47.77 hp 35.6 kW
Max pull:	5950 lbs 2698 kg

Minneapolis 39-57 Engine

Minneapolis 39-57 Engine Stearns 10.1L 4-cyl gasoline Engine details ...

1928 - 1929

Standard-tread tractor

Engine Detail

Engine Detail
Stearns
gasoline
4-cylinder
liquid-cooled
Displacement:	617.7 ci 10.1 L
Bore/Stroke:	5.50x6.50 inches 140 x 165 mm
Rated RPM:	1000
Starter type:	hand crank