Allis-Chalmers B, C
The Allis-Chalmers Model B, introduced in 1937, was the first modern tractor available for under 500 dollars. The Model B was designed to pull a single-bottom plow, replacing the horse. Its appearance, with its rounded lines, differed significantly from earlier A-C tractors. The tractor's frame was very narrow in construction. It was designed for rubber tires, but during the war, many were equipped with steel wheels. The engine was A-C's 1.9-liter four-cylinder gasoline engine. Power from the belt pulley was 16 horsepower. There were three forward gears. Optional equipment included a hydraulic lift, electric start, and from 1945 onward, an adjustable front axle track width. The Model B did not have the traditional belt pulley on the side of the tractor as standard; instead, it was attached to the power take-off shaft at the rear when needed. The early B models featured steering brakes operated by hand levers.
A combine harvester, the All-Crop Model 40, was customized for the Model B and also became popular.
The Model B was also assembled in Britain from 1947 to 1949. In total, about 120,000 units were sold.
In 1941, the Model C was introduced, which was very similar to the B but sized for a two-bottom plow.
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| Model | Allis-Chalmers B | Allis-Chalmers B | Allis-Chalmers B | Allis-Chalmers C |
|---|---|---|---|---|
| Options | ||||
| Manufacturer name | Allis-Chalmers | Allis-Chalmers | Allis-Chalmers | Allis-Chalmers |
| Imported to Finland | Yes | Yes | Yes | Yes |
| Years | 1937-43 | 1943-49 | 1949-57 | 1941-50 |
| First year sold | 1937 | 1943 | 1949 | 1941 |
| Last year sold | 1943 | 1949 | 1957 | 1950 |
| Cyl/Turbo/Intercooler | 4 | 4 | 4 | 4 |
| Displacement | 1903 cm³ | 2048 cm³ | 2048 cm³ | 2048 cm³ |
| Bore x stroke | 82,5×88,9 mm | 85,7×88,9 mm | 85,7×88,9 mm | 85,7×88,9 mm |
| Power | 16 | 22 | 18.5 | 23 |
| Power speed | 1400 | 1500 | 1500 | 1500 |
| Rated power hp/rpm SAE | 16/1400 | 22/1500 | 18,5/1500 | 23/1500 |
| Gears | 3+1 | 3+1 | 4+1 | 3+1 |
| Speeds in km/h | 4,0-12,5 | 4,0-12,0/16,0 | 4,9-22,5 | 4,7-14,2 |
| Lift controls | - | - | mech. | mech. |
| Lift capacity | - | - | (400) kg | - |
| PTO speeds | (560) | (560) | (560) | (540) |
| Brakes | drum brakes | drum brakes | drum brakes | drum brakes |
| Steering | mech. | mech. | mech. | mech. |
| Turning circle m 2WD | 4.5 | 4.5 | 4.5 | 4.26 |
| Front tyres 2WD | 4.00-15 | 5.00-15 | 4.00-15 | 4.00-15 |
| Rear tyres 2WD | 8.00-24 | 9.00-24 | 10.00-24 | 9.00-24 |
| Weight 2WD | (952) kg | (952) kg | (980) kg | (1030) kg |
| Height with cab | (135) cm | (135) cm | (135) cm | (135) cm |
| Length (2WD/4WD) | 282 cm | 282 cm | 271 cm | 290 cm |
| Wheelbase (2WD/4WD) | 194 cm | 194 cm | 185 cm | 196 cm |
| Fuel tank | 45 l | 45 l | 45 l | 49 l |
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