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Quick note,
you better check the chain speed. On a motorcycle the rear
tire is pretty big, so the chain speed doesn't go out of hand.
Probably okay with the prop......(Looking at the
turbo-charged Suzuki Hayagusha doing 270........mph...I have a couple of videos
of this monster doingh speed, if have a need for it... :)))
If the chain goes too fast it will shed all the lube real
fast, get hot, burn the o-rings, end of the game.
You are also looking into lubricating the chain every
flight - keep that chainlube-spray-can in your pocket, or better 2 of them...or
better have a plastic hose going close to the chain or sprocket and lube it
every half hour in flight.
Trial with show wether you got any acceleration-couples in
the system. The heavier the chain, the better damping you should get
(...according to the theory I read about the Geschwender redrive, which uses a
HiVo-Chain - the chain expands into roughly an oval and any resonance occuring
just makes a "wave" in one or the other side of the oval....)
Thomas J.
----- Original Message -----
Sent: Sunday, December 12, 2004 9:20
AM
Subject: [FlyRotary] Re: Serious single
rotor questions (serious??)
He uses a racing motorcycle chain up to a propeller shaft in
pillow block bearings up
where the engine is supposed to
be.
Charlie
Thanks Charlie.
For some reason, I never thought of that, but it does seem easy, and I agree
with the 3:1 ratio. I'd sure hate to think of that chain coming
off and going through the prop though.
I mentioned the chain to my wife, and she
reminded me of all those Junkyard Wars episodes we've seen. On that
show, anyone who uses a chain to drive anything is destined to lose. I
would hope that I could exceed the average Junkyard Wars standard of quality
though :-)
Thanks,
Rusty (something else to think
about)
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