X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 26 Nov 2006 21:44:05 -0500 Message-ID: X-Original-Return-Path: Received: from smtp101.sbc.mail.mud.yahoo.com ([68.142.198.200] verified) by logan.com (CommuniGate Pro SMTP 5.1.2) with SMTP id 1604241 for lml@lancaironline.net; Sun, 26 Nov 2006 13:30:20 -0500 Received-SPF: none receiver=logan.com; client-ip=68.142.198.200; envelope-from=elippse@sbcglobal.net Received: (qmail 62890 invoked from network); 26 Nov 2006 18:29:59 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=sbcglobal.net; h=Received:X-YMail-OSG:Message-ID:From:To:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MIMEOLE; b=MHcSgzHMqQ3ijPVTgmykNWEmZ0AZ7pUbgLz+AtVc4YQrsORn8fskO4M6/V1ua277yCqAPxI0LONZcnZQt8ekKqHFm6WF/df4bOBQChiORhU6XAtKGzb2RQmCVnNpzFEqNj2kmqZnLWDodq5ZK3gkNO0D9+3WtWNd4tBZUU9Bzpk= ; Received: from unknown (HELO Computerroom) (elippse@sbcglobal.net@75.15.148.128 with login) by smtp101.sbc.mail.mud.yahoo.com with SMTP; 26 Nov 2006 18:29:58 -0000 X-YMail-OSG: 44h_8zAVM1k8pHthHtwKh9QIMDVrWsXim7xRmV6gwRr762d3S51z49b_FhSI3hj4zyat98x6sRwOx1u6MVRjCfil2TfE3ku2o84DQqEAnjTVzoUhaKvTNg-- X-Original-Message-ID: <000901c71188$e4e18d80$80940f4b@Computerroom> From: "Paul Lipps" X-Original-To: "Marv Kaye" Subject: Convex, concave, deadband X-Original-Date: Sun, 26 Nov 2006 10:29:49 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0006_01C71145.CE3B31F0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2869 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C71145.CE3B31F0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Oh! God!, I did write convex when I meant to say concave! Mea culpa, = mea culpa, mea maxima culpa! And yes. if the surface preceding is 10cm = thick, you would add 1.5cm to each side of the control LE, then follow = that 13cm-thick rounded shape with a CONCAVITY down to the surface on = each side. I should also have included the third thing this control = treatment does; it reduces or eliminates dead-band! How's that for a for = a reasonably simple mod, especially during manufacture! Drag reduction, = flutter reduction, dead-band reduction. That's right up there with = Rogaine and Viagra! And don't ask me why no kit or plane maker does = that. Look at conventional prop planforms, then look at the planforms of = the high-efficiency props I designed that give the Reno biplanes so much = more speed. Why aren't the prop makers jumping all over that? Why aren't = all of the other racers jumping on that? Fortunately, some are! At least = two in F1 and at least one CS in Sport, and possibly a second! ------=_NextPart_000_0006_01C71145.CE3B31F0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
    Oh! God!, I did write convex = when I=20 meant to say concave! Mea culpa, mea culpa, mea maxima culpa! And yes. = if the=20 surface preceding is 10cm thick, you would add 1.5cm to each side of the = control=20 LE, then follow that 13cm-thick rounded shape with a CONCAVITY down = to the=20 surface on each side. I should also have included the third thing = this=20 control treatment does; it reduces or eliminates dead-band! How's that = for a for=20 a reasonably simple mod, especially during manufacture! Drag reduction, = flutter=20 reduction, dead-band reduction. That's right up there with Rogaine and = Viagra!=20 And don't ask me why no kit or plane maker does that. Look at = conventional prop=20 planforms, then look at the planforms of the high-efficiency props = I=20 designed that give the Reno biplanes so much more speed. Why aren't the = prop=20 makers jumping all over that? Why aren't all of the other racers jumping = on=20 that? Fortunately, some are! At least two in F1 and at least one CS in = Sport,=20 and possibly a second!
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