Quote:
Originally Posted by Frank Lee
Interesting point...
but does a prop have comparable properties (pun!!!) to an enclosed impeller pump?
So I just went and got my spare sump pump- axial impeller like a car water pump- put it in the kitchen sink with water and turned it on with my hand over the outlet.
mmmmm... pump motor so powerful it didn't vary much, unlike the hair dryer. I thought it slowed under load ie. pumping water...
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Can you vary the input voltage to under-rate the torque?
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