X-Virus-Scanned: clean according to Sophos on Logan.com From: "Kelly Troyer" Received: from mail-io0-f180.google.com ([209.85.223.180] verified) by logan.com (CommuniGate Pro SMTP 6.1.7) with ESMTPS id 8184761 for flyrotary@lancaironline.net; Sun, 22 Nov 2015 18:14:39 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.223.180; envelope-from=keltro@gmail.com Received: by ioc74 with SMTP id 74so171754613ioc.2 for ; Sun, 22 Nov 2015 15:14:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=zkwoJ5E5zUvd19okzyj/Ch2xY95qTWcGe/6KS3d1m0s=; b=wuSNoPhyIJPjk/8L4IsHSbxG0Tp64JPsG0XEcZ+4c1+yPnYFi8938h3CHo3f28GbVQ F8F/XnqvCQ5uOp3uGdIhjYc+fsigwAdEXlKHyJ1hQyIbst09lzdQTMZpJJtmWCEeSGGo Mf+QYcMgb63BUR4W/e+pU/1/DAeswX0xUSOKSckbT8T+07zeqaxDKHvZDEUulXnm+/KW /Y22WBDjgXgKhsGgh+MVMLHV8C8cB+FifWaxXOC8f1laEMwSo4PSl+bRJVGwn/aSoHjs v61BS0vUmCHXH84FBtSn1D8GYSPiCjJ5NdEbXGmGQ8l03RB5zgeIKDl/wbAMnmmwA2hV vXAw== MIME-Version: 1.0 X-Received: by 10.107.138.16 with SMTP id m16mr23300646iod.40.1448234062709; Sun, 22 Nov 2015 15:14:22 -0800 (PST) Received: by 10.79.30.199 with HTTP; Sun, 22 Nov 2015 15:14:22 -0800 (PST) In-Reply-To: References: Date: Sun, 22 Nov 2015 17:14:22 -0600 Message-ID: Subject: Re: [FlyRotary] Re: Request for Performance specs on VAF To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=001a113f1918dc0d48052529446e --001a113f1918dc0d48052529446e Content-Type: text/plain; charset=UTF-8 Steve, Curious as to your source for the 7x16.5x2.25 radiator cores.........I am in need of about 9.5x16.5x2.25 cores..........Also how many fins per inch of your cores ?............ Thanks, Kelly Troyer On Sun, Nov 22, 2015 at 4:17 PM, Steven W. Boese < flyrotary@lancaironline.net> wrote: > Charlie, > > The following data can be forwarded to the VAF thread as you see fit: > > The data are averages for stabilized cruise portions of cross country > flights with a single 7x16.5x2.25" radiator core in a belly mounted scoop. > The Altrak altitude hold was engaged and the data was recorded by the Dynon > EFIS and EMS at 3 second intervals. The stock cooling air inlets were > blocked with flat foam plugs with about 2 sq in openings in each to supply > some air flow through the cowl. > > RV-6A, wheel and gear leg fairings installed. > Mazda 13B engine, normally aspirated. > RWS RD1A PSRU, 2.18:1 reduction ratio. > Warp Drive HP propeller, 3 blade 68" dia, 16.5 degree pitch at tip. > Belly mounted scoop for cooling, containing coolant radiator and oil to > coolant heat exchanger, variable air outlet. > Auxiliary coolant radiator in cowl, thermostat controlled coolant flow, > variable air inlet. > > Stabilized cruise averages: > date 8/15/2015 8/15/2015 8/16/2015 > duration (min) 20 40 > 70 > ALT (ft) 9530 11530 10593 > DA (ft) 12446 14294 13078 > OAT (deg F) 69 59 > 59 > MAP (in Hg) 20.8 19.2 19.0 > RPM 5747 5712 > 5591 > CAS (knots) 116 112 > 112 > TAS (knots) 145 143 > 141 > FF (gal/hr) 8.75 8.15 > 7.76 > wt (lb) 1745 1715 > 1710 > > Coolant T in from > cowl rad (deg F) 177 164 125 > > Coolant T in from > scoop rad (deg F) 184 181 179 > > Coolant T out (deg F) 190 187 185 > Oil T out (deg F) 226 222 216 > Oil T in (deg F) 205 202 > 198 > > As possible point of interest, a more recent test flight with a V shaped > radiator with two 7x16.5x2.25" cores in the scoop was made. In the cruise > condition with a 114 degree F air temperature rise through the scoop > radiator, the aircraft TAS was 143 knots and the scoop outlet air velocity > was measured to be 157 knots TAS. > > Steve Boese > RV6A, 1986 13B NA, RD1A, EC2 > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > --001a113f1918dc0d48052529446e Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: base64 PGRpdiBkaXI9Imx0ciI+U3RldmUsPGRpdj7CoCDCoEN1cmlvdXMgYXMgdG8geW91ciBzb3VyY2Ug Zm9yIHRoZSA3eDE2LjV4Mi4yNSByYWRpYXRvciBjb3Jlcy4uLi4uLi4uLkkgYW0gaW4gbmVlZCBv ZiBhYm91dCA5LjV4MTYuNXgyLjI1IGNvcmVzLi4uLi4uLi4uLkFsc28gaG93IG1hbnkgZmlucyBw ZXIgaW5jaDwvZGl2PjxkaXY+b2YgeW91ciBjb3JlcyA/Li4uLi4uLi4uLi4uPC9kaXY+PGRpdj48 YnI+PC9kaXY+PGRpdj5UaGFua3MsPC9kaXY+PGRpdj48YnI+PC9kaXY+PGRpdj5LZWxseSBUcm95 ZXLCoDwvZGl2PjxkaXYgY2xhc3M9ImdtYWlsX2V4dHJhIj48YnI+PGRpdiBjbGFzcz0iZ21haWxf 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