Return-Path: Received: from frontend2.cwpanama.net ([201.225.225.168] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 564424 for flyrotary@lancaironline.net; Sun, 12 Dec 2004 12:04:27 -0500 Received-SPF: none receiver=logan.com; client-ip=201.225.225.168; envelope-from=rijakits@cwpanama.net Received: from [201.224.93.110] (HELO usuarioq3efog0) by frontend2.cwpanama.net (CommuniGate Pro SMTP 4.2.1) with SMTP id 31955672 for flyrotary@lancaironline.net; Sun, 12 Dec 2004 12:04:11 -0500 Message-ID: <001901c4e06c$84d8b160$6e5de0c9@usuarioq3efog0> From: "rijakits" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Serious single rotor questions (serious??) Date: Sun, 12 Dec 2004 12:03:35 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0015_01C4E042.9BA34B50" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2741.2600 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2742.200 This is a multi-part message in MIME format. ------=_NextPart_000_0015_01C4E042.9BA34B50 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit MessageQuick 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 ----- From: Russell Duffy To: Rotary motors in aircraft 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) ------=_NextPart_000_0015_01C4E042.9BA34B50 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Quick note,
you better check the chain speed. On a = motorcycle the rear=20 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=20 of this monster doingh speed, if have a need for it... :)))
If the chain goes too fast it will shed all the = lube real=20 fast, get hot, burn the o-rings, end of the game.
You are also looking into lubricating the chain = every=20 flight - keep that chainlube-spray-can in your pocket, or better 2 of = them...or=20 better have a plastic hose going close to the chain or sprocket and lube = it=20 every half hour in flight.
Trial with show wether you got any = acceleration-couples in=20 the system. The heavier the chain, the better damping you should get=20 (...according to the theory I read about the Geschwender redrive, which = uses a=20 HiVo-Chain - the chain expands into roughly an oval and any resonance = occuring=20 just makes a "wave" in one or the other side of the = oval....)
 
Thomas J.
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Sunday, December 12, 2004 = 9:20=20 AM
Subject: [FlyRotary] Re: = Serious single=20 rotor questions (serious??)

He uses a racing motorcycle chain up to a propeller = shaft in=20 pillow block bearings up
where the engine is supposed to=20 be.

Charlie

Thanks = Charlie. =20 For some reason, I never thought of that, but it does seem easy, and I = agree=20 with the 3:1 ratio.   I'd sure hate to think of that chain = coming=20 off and going through the prop though. 
 
I mentioned the chain to my = wife, and she=20 reminded me of all those Junkyard Wars episodes we've seen.  On = that=20 show, anyone who uses a chain to drive anything is destined to = lose.  I=20 would hope that I could exceed the average Junkyard Wars standard of = quality=20 though :-)
 
Thanks,
Rusty (something else to think = about)
 
 



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