Hugh, the RPM article is by Jim Becker, who posts on this forum. The unit attaches as Gene says and has a lever to use as either regular ground speed or reduced speed. The unit does not affect PTO speed. As Keith says, PTO speed on the Cub is the same as engine speed, up to 1600 rpm on the original Cub. Jim Becker also said that a couple of companies made PTO conversions for the Cub which changed the rotation and reduced the speed. One was J.R Prewitt, the other was Hub City. Hub City is still in business but no longer makes the conversion for the Cub. Those who get Red Power magazine can find the article on P 37 of the May-June 2005 issue. Jim is an excellent writer.
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Today's Featured Article - Horsepower Defined - by Staff. Indicated Horsepower This represents the power developed in the enine cylinder as obtained from the pressure in the cylinders. This is pressure obtained from an indicator which shows cylinder pressures. Indicated horsepower does not represent the actual useful power delivered by the engine. Brake Horsepower This is the actual horse power delivered by the engine to the shaft. It is equal to the "indicated horsepower" less the friction of the engine. It is useful hor
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