X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-m23.mx.aol.com ([64.12.137.4] verified) by logan.com (CommuniGate Pro SMTP 5.2.0) with ESMTP id 2784336 for flyrotary@lancaironline.net; Sun, 09 Mar 2008 14:42:40 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.4; envelope-from=Lehanover@aol.com Received: from Lehanover@aol.com by imo-m23.mx.aol.com (mail_out_v38_r9.3.) id q.ce3.2858c373 (39329) for ; Sun, 9 Mar 2008 14:41:57 -0400 (EDT) From: Lehanover@aol.com Message-ID: Date: Sun, 9 Mar 2008 14:41:57 EDT Subject: Re: [FlyRotary] Re: direct drive- was Re: Anyone have an RD-1C for sale? To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1205088117" X-Mailer: Unknown sub 36 X-Spam-Flag: NO -------------------------------1205088117 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit The current rotaries are way over square with a very short stroke (no torque to speak of) And the rotor/crank gearing going the wrong way. I never saw one dynoed that low but I suspect about 100 HP would be a available with a struggle. Perhaps the new X-16 will do a better job with its longer stroke. I had thought about brazing about 1 1/2 rotors together to get about 1 1/2 engines in a two rotor layout. Folks are already cutting down 13B rotor housings to make 12A housings, so why not. Then you could get maybe 150 HP in a direct drive unit. Lynn E. Hanover In a message dated 3/9/2008 2:15:33 P.M. Eastern Daylight Time, rusty@radrotary.com writes: Sure, that can work but why not something completely different? I want to see someone do a direct drive 2 rotor (maybe even turboed) in the right application and the RV-3 comes close. That would be Kool! **************It's Tax Time! Get tips, forms, and advice on AOL Money & Finance. (http://money.aol.com/tax?NCID=aolprf00030000000001) -------------------------------1205088117 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
The current rotaries are way over square with a very short stroke (no=20 torque to speak of) And the rotor/crank gearing going the wrong way. I never= saw=20 one dynoed that low but I suspect about 100 HP would be a available with a=20 struggle. Perhaps the new X-16 will do a better job with its longer=20 stroke.
 
 I had thought about brazing about 1 1/2 rotors together  to=20= get=20 about 1 1/2 engines in a two rotor layout. Folks are already cutting down 13= B=20 rotor housings to make 12A housings, so why not. Then you could get maybe 15= 0 HP=20 in a direct drive unit.
 
Lynn E. Hanover
 
 
 
 
In a message dated 3/9/2008 2:15:33 P.M. Eastern Daylight Time,=20 rusty@radrotary.com writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>
Sure= , that=20 can work but why not something completely different?  = I=20 want to see someone do a direct drive 2 rotor (maybe even turboed) in the=20 right application and the RV-3 comes close.   That would be=20 Kool!   
 



It's Tax Time! Get tips, forms and advi= ce on AOL Money & Finance.
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