Very close, except the one way clutch is not involved when the TA clutch is engaged.
Power is applied to the sun shaft. With the TA clutch released the carrier is held by the one way clutch and power is transmitted from the sun shaft, through the pinion gears, and out through the output shaft. Assuming a 2/3 gear ratio, does the one way clutch have to hold 1/3 or 2/3 of the torque?
The TA clutch only has to hold the sun shaft stationary with relation to the carrier. So does the clutch carry 1/3 or 2/3 of the load?
To add more complications, there are two different gear ratios on the planetary gears.
Whatever the real answer is, the torque that the TA clutch has to control is much less than engine torque.
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Today's Featured Article - The Cletrac General GG and the BF Avery A - A Bit of History - by Mike Ballash. This article is a summary of what I have gathered up from various sources on the Gletrac General GG and the B. F. Avery model A tractors. I am quite sure that most of it is accurate. The General GG was made by the Cleveland Tractor Company (Cletrac) of Cleveland, Ohio. Originally the company was called the Cleveland Motor Plow Company which began in 1912, then the Cleveland Tractor Company (1917) and finally Cletrac.
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