Return-Path: Received: from relay04.roc.ny.frontiernet.net ([66.133.131.37] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2783707 for flyrotary@lancaironline.net; Thu, 04 Dec 2003 14:29:22 -0500 Received: (qmail 19740 invoked from network); 4 Dec 2003 19:28:19 -0000 Received: from unknown (HELO frontiernet.net) ([170.215.97.8]) (envelope-sender ) by relay04.roc.ny.frontiernet.net (FrontierMTA 2.3.6) with SMTP for ; 4 Dec 2003 19:28:19 -0000 Message-ID: <3FCF8B22.37D52197@frontiernet.net> Date: Thu, 04 Dec 2003 13:29:38 -0600 From: Jim Sower X-Mailer: Mozilla 4.77 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Fw: [canard-engines] Auto engines in aircrafts... References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I think this guy is a total doofus. Suggesting that folks who are converting auto engines believe that a PSRU multiplies HP is just about as dumb as believing it yourself. Where he gets his numbers is a mystery. A proctologist could uncover all of his research IMO. Wonder if it ever occurred to him that there's a REASON why Corvair engines or derivatives therefrom have not appeared on automobiles for several generations. Probably not. My guess is that this guy should not be allowed anywhere an airport without supervision. Just my first impression. Now, back to diffusers :o) .... Jim S. Eric Ruttan wrote: > forwarded for comments. > > From: "William Epperson" > To: > Sent: Thursday, December 04, 2003 6:37 AM > Subject: [canard-engines] Auto engines in aircrafts... > > > Some common misunderstandings in dealing with an auto > > conversion is that many people fail to take into > > consideration certain factors, mainly one. Say for > > instance that you have an auto engine that develops > > 200HP at 6000RPM. You are using a PSRU that has a 2:1 > > step down. You'd think that would double your power, > > nope. You'll still only be getting 200HP output at > > 3000RPM, and that's assuming that you are getting 100% > > efficiency from your PSRU.