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I don't know about the old analog units, but the
ones you can buy an airplane for it!
Web are using ACES products which a re considered half the
price of a Chadwick. We use a 2020Turbo for the helicopters and it costs around
$12.000.- with all the software for the helicopters.
They have cheaper version for simpler problems, like
props.
If for nothing else they have a interesting reading about
balancing - go to "downloads"....
I know there are cheaper systems for the experimetal
market out there, but I gues they are a little limited in certain aspects (I may
wrong!!).
ACES is very easy to work with once you got through the
manual (which is very easy too!)
Ask them to send you a test unit, if you like it they may
sell it to you for a reduced price.
I am on good terms with them, if you want I can inquire
about new, used, rental units......
This units can also be used for any and all kinds of
balance - however if you are serious about your gyro, you want to be able to do
that as well....
With some fixtures you should even be able to balance
rotors and cranks dynamically!
Hell, you might make some extra bucks balancing all the
props in your area! Once you areb set up you should be done with 3-4 engine
runs.
Thomas J.
----- Original Message -----
Sent: Sunday, May 15, 2005 9:13 AM
Subject: [FlyRotary] Re: Prop
balancing?
I'm not familiar with the Chadwick unit, but it
probably operates on the same principle using a vibration sensor on the engine
and an optical sensor to pick up reflective tape on one prop blade. No reason
it shouldn't work.
Thanks for the info Perry. The Chadwick
was just as you describe, a vibration/optical sensor
that mounted to the redrive plate, and a piece of tape on the prop.
The guy who was running it admitted that it was probably something he just
didn't know how to set. The unit actually belongs to his son, but he's
working two jobs, and I never see him
anymore.
At least it's good to know that it should probably
work.
BTW, does anyone have any idea how much these things
cost? I assume "a lot".
Cheers,
Rusty
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