X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-ew0-f167.google.com ([209.85.219.167] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3567574 for flyrotary@lancaironline.net; Wed, 01 Apr 2009 21:46:23 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.219.167; envelope-from=msteitle@gmail.com Received: by ewy11 with SMTP id 11so467439ewy.19 for ; Wed, 01 Apr 2009 18:45:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=i+I1Bxc5SYnLGPk06zfwgJrpRlhr8d8P0kj7Z2NGf74=; b=pjC1dNgu6dfgoSGJmqjGg2Dz98C6urIZ9HrAgtDqCrkU2uTjJ5156e/wBWBRUCd8LT /UJ9RHoQJsOcbm9ERDSGN99tRGiG2KS6m1yk2H/LeMaNCI0F3uEiC5125heV0aITqrS0 b9a2V2VDiMhvd4WR9ak2pH0s+yp/KU6se5XhQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=m+ShPr/QFc4UYgz7PfrLiI8dDmTOs4yCw797qy17SGag6iYVJo5e4ow9O/laXof2bH v9m35JHwPnm2BJSLXI7VQrxN4DnaXSCYEcHVCWZz+tiLxCPRQZLWp+75UCeWa4wB6Y1K WC0YB2nD1MnFgo4AfyyI1MHZW7Ku2mZ8HlycQ= MIME-Version: 1.0 Received: by 10.210.128.10 with SMTP id a10mr4976092ebd.11.1238636745151; Wed, 01 Apr 2009 18:45:45 -0700 (PDT) In-Reply-To: References: Date: Wed, 1 Apr 2009 20:45:45 -0500 Message-ID: <5cf132c0904011845sbb19e3x75f8692dfa898b0b@mail.gmail.com> Subject: Re: [FlyRotary] 20B mated to RV-10 From: Mark Steitle To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0015174789b433561004668897e9 --0015174789b433561004668897e9 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi Phil, I have a 20B installed in a Lancair ES with about 110 hrs on the Hobbs. Bobby Hughes has a supercharged Renesis installed in an RV-10. On my installation, I came out pretty close to the recommended CG. I was able to use the stock Lancair cowl (with the addition of a chin scoop and the "Dolly Pardon" treatment). Have you checked the CG numbers on your engine placement? The FWF weight of a N/A 20B should be very close to the FWF weight of an IO-540. Yours appears to be quite a bit forward, but maybe that's the camera angle. My cooling system consists of an aluminum Ford Galaxy radiator (don't recall the exact dimensions), but it is about 800 cu in. It is mounted under the engine/psru and fed by a chin scoop. The oil cooler core is approx. 10 x 11 x 3 and is fed by the left cowl inlet. Right inlet feeds the throttle body. The water temps were good but the oil temps were too high so I installed an oil-to-water exchanger. This brought the oil temps down significantly and also helped the water and oil temps to track each other more closely. The last thing I did was to install a servo powered cowl flap. This helped to reduce cooling drag in cruise flight. I can take some measurements this weekend if you need more precise numbers. Mark S. 2009/4/1 Phil White > After much head scratching, I have managed to attach my 20B to my RV-10. I > kept the Lyc dynafocal mount, in case I fail in making the rotary work > satisfactorily, or if I need to sell to some cretan who doesn't believe in > engines with only 4 moving parts. I managed to get the prop flange within > 1/4" vert and 1/2" horiz of where I wanted it, tho it is 51" from the > firewall compared to the stock location of 43". Guess I get to build a > sleek turbine-look cowling! > > If anyone with a proven cooling system design for the 20B can provide > radiator sizes and source(s), it would be most welcome. > > Phil White > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > --0015174789b433561004668897e9 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi Phil,

I have a 20B installed in a Lancair ES with about 110 hrs = on the Hobbs.=A0 Bobby Hughes has a supercharged Renesis installed in an RV= -10.=A0 On my installation, I came out pretty close to the recommended CG.= =A0 I was able to use the stock Lancair cowl (with the addition of a chin s= coop and the "Dolly Pardon" treatment).=A0 Have you checked the C= G numbers on your engine placement?=A0 The FWF weight of a N/A 20B should b= e very close to the FWF weight of an IO-540.=A0 Yours appears to be quite a= bit forward, but maybe that's the camera angle. =A0=A0

My cooling system consists of an aluminum Ford Galaxy radiator (don'= ;t recall the exact dimensions), but it is about 800 cu in.=A0 It is mounte= d under the engine/psru and fed by a chin scoop.=A0 The oil cooler core is = approx. 10 x 11 x 3 and is fed by the left cowl inlet.=A0 Right inlet feeds= the throttle body.=A0

The water temps were good but the oil temps were too high so I installe= d an oil-to-water exchanger.=A0 This brought the oil temps down significant= ly and also helped the water and oil temps to track each other more closely= .=A0 The last thing I did was to install a servo powered cowl flap.=A0 This= helped to reduce cooling drag in cruise flight.=A0

I can take some measurements this weekend if you need more precise numb= ers.

Mark S.
=A0=A0 =A0 =A0

20= 09/4/1 Phil White <philwhite9@aol.com>
After much head s= cratching, I have managed to attach my 20B to my RV-10. =A0I kept the Lyc d= ynafocal mount, in case I fail in making the rotary work satisfactorily, or= if I need to sell to some cretan who doesn't believe in engines with o= nly 4 moving parts. =A0I managed to get the prop flange within 1/4" ve= rt and 1/2" horiz of where I wanted it, tho it is 51" from the fi= rewall compared to the stock location of 43". =A0Guess I get to build = a sleek turbine-look cowling!

=A0 If anyone with a proven cooling system design for the 20B can provide = radiator sizes and source(s), it would be most welcome.

Phil White

--
Homepage: =A0http:/= /www.flyrotary.com/
Archive and UnSub: =A0 http://mail.lancaironline.net:81/lists= /flyrotary/List.html


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