The Massey-Harris Model 20 was a two-plowhttp://www.towplow.com/ tractor built by Massey-Harris (later Massey Ferguson) from 1946-1948.[1] Introduced to commemorate Massey's 100th anniversary in 1947,[1] [2] the 20 was virtually identical to the earlier Model 81, which first appeared in 1941.[3] About 8,000 Model 20s were sold, in row crop or standard models, with the choice of gasoline or kerosene[1] [4] (known as tractor vaporising oil, or TVO, in Britain)[5] as fuel. The Model 20 was replaced in 1948 by the Model 22.
With a base price of around C$1450,[6] about C$500 more than the 81,[1] the 20 was competitive with Ford and Ferguson-Brown models of the period.[6]
The bare weight without ballast[7] was 3,000 lb (1,350 kg)[6] (some 700 lb less than the contemporary Model 30http://mbagmuseum.ca/artifact/massey-harris-model-30/, which dramatically outsold it,[1] but about 400 lb more than the earlier 81).[3]
The 124 in3 (2,031 cc)[3] engine inherited from the 81, and the 101 before it,[3] [8] produced 31 hp (23 kW) at the belt,[9] and was manufactured by Continental, like all Massey Harris tractors at the time.[1]
The 20 offered four speeds[6] (against the 30's five),[1] providing a top speed of 2.5 mph (4 km/h) in first (low) and 13.5 mph (21.6 km/h) in fourth (high).[6]