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["WILLIAM JONES" <billj AT harborside.com>]

Don wrote:
>Those low speed devices are best for such things as pumping water. If 
>you try to gear them up for higher output speed you run into significant 
>gear losses due to the significantly increased load between drive elements.
I think that the water in all my designs never travels faster than, say, 10 
linear feet per second.  At this velocity, the non-linear character of the 
head-loss table is actually working on my behalf.    In other words, it's 
really negligible.  The only exception is the hydraulic ram compressor, where 
the water approaches a high terminal velocity.  But it is what it is.
Bill