X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <marv@lancaironline.net> Sender: <marv@lancaironline.net> To: lml@lancaironline.net Date: Wed, 25 Jun 2008 09:01:57 -0400 Message-ID: <redirect-2990564@logan.com> X-Original-Return-Path: <elippse@sbcglobal.net> Received: from smtp123.sbc.mail.sp1.yahoo.com ([69.147.64.96] verified) by logan.com (CommuniGate Pro SMTP 5.2.4) with SMTP id 2990077 for lml@lancaironline.net; Tue, 24 Jun 2008 23:41:04 -0400 Received: (qmail 26952 invoked from network); 25 Jun 2008 03:41:04 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=sbcglobal.net; h=Received:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE; b=lppmVtfuGnx0VFZnD7XyFugcpr64dgfbYQ8wHmHuArOkn1fj3tomaI5tWUPMjwNHJFErn5rWUeQEEnIKdPDue74tP2fXVemmyY1Inx3TwikCpcv+X8B1AEVf4VsAIL2wmBf59w27aXbLSUuD5nJsHHgHODOH4/N4NUUCPNOiP0Q= ; Received: from unknown (HELO Computerroom) (elippse@sbcglobal.net@69.227.129.140 with login) by smtp123.sbc.mail.sp1.yahoo.com with SMTP; 25 Jun 2008 03:41:04 -0000 X-YMail-OSG: 71E4TtwVM1mrxxwdJ6PX1SCl77pIsUYo7.kzht.e2DQMt11Miy1cwU6C6NrrhydbBZaDjK7MSvrHAXQGBZXhu0ZZvx4na9sU72dbMibaveZkVwmkSygvJIJVO2BB78GbHko- X-Yahoo-Newman-Property: ymail-3 X-Original-Message-ID: <000801c8d675$58e92050$8c81e345@Computerroom> From: "Paul Lipps" <elippse@sbcglobal.net> X-Original-To: "Marv Kaye" <lml@lancaironline.net> Subject: Aero formulae X-Original-Date: Tue, 24 Jun 2008 20:41:24 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0005_01C8D63A.AAFC0730" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_0005_01C8D63A.AAFC0730 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Good aero formulae in von Mises' Theory of Flight, pps 8-35 and 364-366. = I derived the density altitude change of 63' / F or 113.4' / C from = these formulae. I used the deLaval engineering handbook for temperature = rise in compressed gases, such as from a supercharger, on p 6-65 and p = 10-12 for stagnation temperature rise, from which you will get Ts, F, = =3D V^2 / 5521, V mph; V^2 / 4167, V knots; and V^2 / 11876, V ft/sec; = also Vs =3D 49.04(Rankine)^0.5, ft/sec. ------=_NextPart_000_0005_01C8D63A.AAFC0730 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Dwindows-1252"> <META content=3D"MSHTML 6.00.2900.3354" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial>Good aero formulae in von Mises' Theory of = Flight, pps=20 8-35 and 364-366. I derived the density altitude change of 63' / F or = 113.4' / C=20 from these formulae. I used the deLaval engineering handbook for=20 temperature rise in compressed gases, such as from a supercharger, on p = 6-65 and=20 p 10-12 for stagnation temperature rise, from which you will get = Ts, F,=20 =3D V^2 / 5521, V mph; V^2 / 4167, V knots; and V^2 / 11876, V = ft/sec; also=20 Vs =3D 49.04(Rankine)^0.5, ft/sec.</FONT></DIV></BODY></HTML> ------=_NextPart_000_0005_01C8D63A.AAFC0730--