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Was there such a thing?

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Dave in GA

02-12-2003 04:49:39




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My father once said that his father had an AC tractor called a "Thresherman's Special" and was a 40-80 or 30-60. This would have been back in 1900-1930 sometime. Grandpa did the threshing for all of the local farmers, plus operated a tractor-powered sawmill in the winter. Was there such a tractor?




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Butch(OH)

02-12-2003 05:35:36




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 Re: Was there such a thing? in reply to Dave in GA, 02-12-2003 04:49:39  
Yes there was. I don't have my reference handy so my dates are approximate. When A-C started producing the Model E 18-30 tractor it quickly gained a good reputaion for thresher power. Later the E designation was changed to 20-35 The first "Thresherman's Special" 20-35s were standard tractors with enhanced governor, ignition timing, and carburetor mixture controls that allowed the engine to be fine tuned at the speed needed to properly operate the thresher. Later Thresherman's Specials had increased bore sizes for extra power. When the model E rating was changed to 25-40 in the late twenties or early thirties the thresherman's special engine was 5 1/4 bore kerosene fuel and the tractor was not warrentied for drawbar work, only belt work. Although the model 25-40 Thresherman's Special would produce 30 drawbar and 60 belt horse power the designation remained 25-40. Not until the model A came out in 1936 and a small run of model E Thresherman's Specials were built did A-C use the designation E30-60, however today quite a few people consider any 5 1/4 bore 25-40 a 30-60.

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Steve in N.J.

02-12-2003 05:51:23




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 Re: Re: Was there such a thing? in reply to Butch(OH), 02-12-2003 05:35:36  

Sounds like that could have been AC's "factory Hotrod" uh? Big bore, big power! Steve B.



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