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X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 30 Oct 2010 08:35:14 -0400 Message-ID: X-Original-Return-Path: Received: from mta11.charter.net ([216.33.127.80] verified) by logan.com (CommuniGate Pro SMTP 5.3.10) with ESMTP id 4546261 for lml@lancaironline.net; Thu, 28 Oct 2010 17:33:55 -0400 Received-SPF: pass receiver=logan.com; client-ip=216.33.127.80; envelope-from=cscheid@charter.net Received: from imp09 ([10.20.200.9]) by mta11.charter.net (InterMail vM.7.09.02.04 201-2219-117-106-20090629) with ESMTP id <20101028213320.CVKE4123.mta11.charter.net@imp09> for ; Thu, 28 Oct 2010 17:33:20 -0400 Received: from carlcb56c6da5e ([96.42.21.56]) by imp09 with smtp.charter.net id QMZE1f0081Cc4DL05MZLDH; Thu, 28 Oct 2010 17:33:20 -0400 X-Authority-Analysis: v=1.0 c=1 a=_rXsIPw-VzIA:10 a=ohXTLIrzoeawTsVhCVcA:9 a=9PYtjHvH01PXYYFh6HLMZx6jekkA:4 a=pILNOxqGKmIA:10 a=gWorYXnryGk0Hq6FYbsA:9 a=EG6dt5lToWQ3ePpFutoA:7 a=4KXUwwSG_bAH1UNimGqESySOJNMA:4 a=tw1jzT0KKlhGTWolSpMA:9 a=rUpbVCXvn0xgPH92F2nkGYLTyUAA:4 a=1Vq_FK4TplAA:10 a=zFkaf4_RTbLQglguP5cA:9 X-Original-Message-ID: Reply-To: "Carl Scheid" From: "Carl Scheid" X-Original-To: "Lancair Mailing List" Subject: LNC4 Performance X-Original-Date: Thu, 28 Oct 2010 16:33:00 -0500 MIME-Version: 1.0 Content-Type: multipart/related; type="multipart/alternative"; boundary="----=_NextPart_000_0015_01CB76BD.C8FD2180" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5994 This is a multi-part message in MIME format. ------=_NextPart_000_0015_01CB76BD.C8FD2180 Content-Type: multipart/alternative; boundary="----=_NextPart_001_0016_01CB76BD.C8FD2180" ------=_NextPart_001_0016_01CB76BD.C8FD2180 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable BlankI am trying to create a math model for the IVP. The model uses the = following critical parameters: =20 75% power =3D 262.5BHP, zero lift drag coefficient =3D .02, propeller = efficiency range =3D .87-.80, and gross weight =3D 2900 lbs. The model predicts the following =20 Fuel flow @ 75% power =3D 17.5 GPH and 75% power speed vs ISA altitude: ALTITUDE FT TAS KTS =20 0 218.5 =20 2500 223 =20 5000 227.5 =20 7500 233 =20 10000 238 =20 12500 242 =20 15000 247 =20 17500 252 =20 20000 257 =20 22500 262 =20 Is this consistent with experience? I=92d be interested in any other = data such as ROC and speed at these or other weights and power settings. Thanks, Carl ------=_NextPart_001_0016_01CB76BD.C8FD2180 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Blank

I am trying to create a math model = for the IVP.=20 The model uses the following critical parameters: &nbs= p; =20

75% power =3D 262.5BHP, zero lift drag coefficient =3D = .02, propeller efficiency range =3D = .87-.80, and=20 gross weight =3D 2900 lbs.

The model predicts the = following &nbs= p;=20

Fuel flow @ 75% power =3D 17.5 GPH and 75% power speed vs = ISA=20 altitude:

ALTITUDE = FT

TAS = KTS

218.5

2500

223

5000

227.5

7500

233

10000

238

12500

242

15000

247

17500

252

20000

257

22500

262

Is=20 this consistent with experience? I=92d be interested in any other data = such as ROC=20 and speed at these or other weights and power = settings.

Thanks,

Carl

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