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Or put a silicon filled balance ring at the prop
hub :-)
Wolfgang
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Vibration sensor is placed on engine to measure
how engine is moving in space.
Prop imbalance will make engine move in
bigger circle.
So mayny Millivolts are genrated per vibration
severity.
Relative location of heavy spot is signaled by
photo cell, or strobe light flash as heavy spot passes and polarity
changes. Up-down = plus-minus.
The prop's static weigh slugs
can be adjusted or large area washers can be bolted to spinner bulkhead to
counterbalance the heavy spot.
How much depends weigh depends on
how much imbalance there was to begin with.
Common to have 10-30
grams of weight for a momento of 100-200 inch pounds.
Kent
Felkins
Tulsa Oklahoma
----- Original Message ----- From:
"Greenbacks, UnLtd." <N4ZQ@comcast.net>
To:
<lml@lancaironline.net>
Sent: Thursday, August 12, 2010 7:20
AM
Subject: [LML] Re: Prop Balance
Could one of you describe the process of dynamically
balancing a
typical prop?
My old brain cannot visualize how
weights are attached.
Angier Ames
N4ZQ
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