Engineering:Massey-Harris Model 81

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Massey-Harris Model 81
Massey-HarrisTractor.jpg
Typeagricultural
ManufacturerMassey-Harris
Production1941-1948
Length119 inches
Height58 inches
Weight2,895 lbs.
Propulsionwheels

The Massey-Harris Model 81 was a two-plow small-farm tractor built by Massey-Harris (later Massey Ferguson) from 1941-1948.[1] Introduced to replace Massey's General GG,[1] the 81 was paired with the Model 82 (which used kerosene, or tractor vaporizing oil {TVO}, as it was known in Britain)[2] and was very similar to the Model 101 Junior,[1] which first appeared in 1939.[3] It was offered in standard-tread and row-crop versions, as was the Model 20 that followed it. The Model 81 was joined in 1946 by the Model 20,[4] both of which survived in production until 1948.[1][4]

Pricing

With a base price of around C$800,[5] it was competitive with the C$900 John Deere A.[1] and less than Ford and Ferguson-Brown models of the period.[5]

Weight

The bare weight without ballast[4] was 2,600 lb (1,170 kg),[1] some 1,100 lb {580 kg} less than the contemporary Model 30.[4]

Engines

The 81 used the same 124 in3 (2,031 cc)[1][6] engine of the 101 Junior, while the 82 used a 140 in3 (2,293 cc) model.[1] The 124 in3 was rated at 21 hp (15.7 kW) at the belt,[1] and was manufactured by Continental, like all Massey-Harris tractors at the time.[4][6]

Use by Royal Canadian Air Force

The Royal Canadian Air Force used blue-painted standards as aircraft tugs,[1] out of under 2,600 standard-tread 81s made.[7]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Pripps, p.72.
  2. ↑ Pripps, p.131.
  3. ↑ Pripps, p.61.
  4. ↑ 4.0 4.1 4.2 4.3 4.4 Pripps, p.78.
  5. ↑ 5.0 5.1 Pripps, p.79 cap.
  6. ↑ 6.0 6.1 Pripps, p.104.
  7. ↑ Pripps, p.74.

Sources

Further reading

  • Pripps, Robert N. The Big Book of Farm Tractors. Vancouver, BC: Raincoast Books, 2001. ISBN:1-55192-393-9.
  • ______. The Field Guide to Vintage Farm Tractors. Stillwater, MN: Voyageur Press, 2001.
  • ______. Vintage Ford Tractors. Stillwater, MN: Voyageur Press, 2001.
  • Denison, Merrill. Harvest Triumphant: The Story of Massey-Harris. New York: Dodd Mead, 1949.
  • Farnsworth, John. The Massey Legacy. Ipswich, Great Britain: Farming Press, 1997.
  • Gay, Larry. Farm Tractors 1975-1995. Saint Joseph, MI: American Society of Agricultural Engineers, 1995.
  • Wendel, C. H. Massey Tractors. Osceola, WI: Motorbooks International, 1992.




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