Return-Path: <13brv3@bellsouth.net> Received: from imf23aec.mail.bellsouth.net ([205.152.59.71] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 3054422 for flyrotary@lancaironline.net; Tue, 02 Mar 2004 10:03:15 -0500 Received: from rad ([65.0.129.176]) by imf23aec.mail.bellsouth.net (InterMail vM.5.01.06.05 201-253-122-130-105-20030824) with ESMTP id <20040302150314.NLGL1901.imf23aec.mail.bellsouth.net@rad> for ; Tue, 2 Mar 2004 10:03:14 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: muffler report Date: Tue, 2 Mar 2004 09:03:16 -0600 Message-ID: <006a01c40067$7e79a7b0$6001a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_006B_01C40035.33DF37B0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_006B_01C40035.33DF37B0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable 5. The aero drag on Spintech was costing me more than the 3 - 4 mph = that I had estimated. It was less aero drag that attracted me to the Hushpower = II to begin with. =20 6. The airplane is frighteningly fast due to 4 & 5. Could not do an = all out top speed run due to airframe concerns. I backed off when airspeed exceeded Vne by 10 mph.=20 =20 So with the Renesis engine, you'll be running the race at half throttle = & Vne :-) =20 I'm hoping that my Spintech will be far enough forward to keep the 200 = mph wind from hitting the front of the muffler. I may have to extent the = bottom cowl back just a bit to make sure, though that's waaaaaaaaaay down on = the list of priorities at this point. =20 Cheers, Rusty PS- my entire exhaust weighs 25 lbs. ------=_NextPart_000_006B_01C40035.33DF37B0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

5.  The aero drag on Spintech was costing me more than the 3 - 4 = mph=20 that I had estimated.  It was less aero drag that attracted me to = the=20 Hushpower II to begin with. 

6.  The airplane is frighteningly fast due to 4 & = 5. =20 Could not do an all out top speed run due to airframe concerns. =20 I backed off when airspeed exceeded Vne by 10 mph. 

 

So with=20 the Renesis engine, you'll be running the race at half throttle & = Vne=20 :-)   

I'm=20 hoping that my Spintech will be far enough forward to keep the 200 mph = wind from=20 hitting the front of the muffler.  I may have to extent the bottom = cowl=20 back just a bit to make sure, though that's waaaaaaaaaay down on the = list of=20 priorities at this point.  

Cheers,

Rusty

PS- my=20 entire exhaust weighs 25 lbs.

------=_NextPart_000_006B_01C40035.33DF37B0--