X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 21 May 2008 20:48:49 -0400 Message-ID: X-Original-Return-Path: Received: from smtp118.sbc.mail.sp1.yahoo.com ([69.147.64.91] verified) by logan.com (CommuniGate Pro SMTP 5.2.3) with SMTP id 2932239 for lml@lancaironline.net; Wed, 21 May 2008 12:31:26 -0400 Received: (qmail 44493 invoked from network); 21 May 2008 16:31:25 -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=QzhSMQcCxnz0OI1IQfZpBPcdj5aq98rcRU4gqwRSA/c0DkqEhmG8F2sJeexJhrZJ4+AgMMPEE/24Rm49eIVolfAbJM8h4r+XnfJI9SeLB7N050UFOmTKNlMR0KpgAnW402CP/UPZRr+L0ZxZJRMyrTMA+zhg/t6QAOYcVbVPLb4= ; Received: from unknown (HELO Computerroom) (elippse@sbcglobal.net@75.15.114.129 with login) by smtp118.sbc.mail.sp1.yahoo.com with SMTP; 21 May 2008 16:31:24 -0000 X-YMail-OSG: Xj2LwLwVM1kN2ymZoE_ZbLzVC7IRR5lNCjBCTsCIRtdhxRKGftCvY6LucNyVcBxcYtLlBpf1vlVJ6nEqxJFuwh40_W4qrzBwtAUfSS4462pRL6oGc4m3NJb7I1Y4eqM1Yzs- X-Yahoo-Newman-Property: ymail-3 X-Original-Message-ID: <000801c8bb60$1cec4580$4001a8c0@Computerroom> From: "Paul Lipps" X-Original-To: "Marv Kaye" Subject: Lancair IV glide data X-Original-Date: Wed, 21 May 2008 09:30:40 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0005_01C8BB25.55A32B40" 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_01C8BB25.55A32B40 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Lancair IV, 30.2' span, 98 sq.ft. area, 9.3:1 AR, 0.82 Oswald efficiency = factor, 2000# empty, 360# 2 people, 240# fuel, 2.12 ft.sq. equivalent = parasite drag area*. All following values without regard to prop thrust or drag: Best L/D is when drag area equals CDI X 98, 120 mph IAS, ROD 3000 = ft./min. straight ahead. 45 deg. turn with induced loss equaling drag area for best turn L/D at = 1.414G, 143 mph IAS, ROD 5050 ft./min., 542' turn radius, 8.2 sec/ 180 = deg, 685' altitude loss / 180 deg. 45 deg. turn at 76% of best turn L/D, 109 mph IAS, ROD 4430 ft./min., = 222' turn radius, 4.3 sec/ 180 deg., 323' altitude loss / 180 deg. * Marty Hollman, Modern Aircraft Design, p.13. Marty did the design of = much of the Lancair IV, and designed its high wing look-alike, the = Stallion. ------=_NextPart_000_0005_01C8BB25.55A32B40 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Lancair IV, 30.2' span, 98 sq.ft. area, 9.3:1 = AR, 0.82=20 Oswald efficiency factor, 2000# empty, 360# 2 people, 240# fuel, 2.12 = ft.sq.=20 equivalent parasite drag area*.

All following values without = regard to prop=20 thrust or drag:

Best L/D is when drag area equals CDI X 98, 120 mph IAS, ROD 3000=20 ft./min. straight ahead.

45 deg. turn with induced loss equaling drag = area for best=20 turn L/D at 1.414G, 143 mph IAS, ROD 5050 ft./min., 542' turn = radius, 8.2=20 sec/ 180 deg, 685' altitude loss / 180 deg.

45 deg. turn at 76% of best turn L/D, 109 = mph IAS,=20 ROD 4430 ft./min., 222' turn radius, 4.3 sec/ 180 deg., 323' = altitude loss=20 / 180 deg.

* Marty Hollman, Modern Aircraft Design, = p.13. Marty=20 did the design of much of the Lancair IV, and designed its high = wing=20 look-alike, the Stallion.

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