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Farmall & IHC Tractors Discussion Board

Re: Re: Re: Re: Ground speeds


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Posted by Steve - IN on June 30, 2003 at 21:42:27 from (12.223.205.149):

In Reply to: Re: Re: Re: Ground speeds posted by Hugh MacKay on June 30, 2003 at 20:52:37:

Hugh and CNKS,

I got out my H manual and looked, just for curiosity and the heck of it. It says: 1st: 2.5mph, 2nd: 3.375 mph, 3rd: 4mph, 4th: 5mph, 5th: 15.5mph, reverse: 2.5mph.

Here's the kicker, the subhead says: "based on 36" pneumatic tires". The facing page specs 38" tires, which is what I have. If the aspect ratios of the two sizes of tires are the same, I suppose you have to add a ~5% delta for the larger size, then deduct the ratio for the T/A (T/A postdates my H manual by some years, so it's not covered).

I'd never noticed before that the manual spec'd 36" tires for speed. Amazing the things you learn here.


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