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Old 02-25-2004, 01:10 AM
BMatthews's Avatar
Join Date: Oct 2002
Location: Chilliwack, BC, CANADA
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I've got a rig I use for testing electric motors and prop combos. It's an arm about 18 inches long with 12 for the motor arm and 6 for the spring side with ball bearings for the pivot. I made up a couple of springs that I use for resisting and measureing the thrust. One is quite a heavy spring and let's me measure up to 40 oz of thrust and the other is good up to about 14 for small FF motors and props.

I'll get a pic of it in the next few days for you to check out.