Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2.1) with ESMTP id 406041 for flyrotary@lancaironline.net; Fri, 10 Sep 2004 19:53:44 -0400 Received-SPF: none receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from EDWARD (cpe-069-132-183-211.carolina.rr.com [69.132.183.211]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i8ANrEiB025568 for ; Fri, 10 Sep 2004 19:53:15 -0400 (EDT) Message-ID: <000801c49791$57f5dfc0$2402a8c0@EDWARD> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: First engine run with Monster Prop Date: Fri, 10 Sep 2004 19:53:16 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0005_01C4976F.D08E5790" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0005_01C4976F.D08E5790 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Thanks, Yvon I believe you are right, It would certainly take more torque to = turn the larger propeller. The larger propeller is turning approx 31.5 = revolutions per second, so it appears to be moving a lot of air. = Hopefully, we will see more acceleration and climb. Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message -----=20 From: g=E9raldine berger-yvon cournoyer=20 To: Rotary motors in aircraft=20 Sent: Friday, September 10, 2004 5:30 PM Subject: [FlyRotary] Re: First engine run with Monster Prop ----- Message d'origine -----=20 De : Ed Anderson=20 =C0 : Rotary motors in aircraft=20 Envoy=E9 : 9 sept. 04 15:07 Objet : [FlyRotary] First engine run with Monster Prop Temperatures were normal. After extended runup the oil temps = approached 190F and coolant temp got up to 210F this is what I would = normally see. Considering that the static rpm was the same as my old = gearbox and prop, it likely I was producing the same HP and therefore = would not expect major difference. The larger prop did not seem to = interfere with the cooling airflow - at least on the ground. Considering the differences in diameter and pitch between your old = and new propellers, I believe you were producing more torque at the = propeller shaft since you were turniing the same engine rpm as of old.=20 Congratulations on those excellent results. Yvon. =20 ------=_NextPart_000_0005_01C4976F.D08E5790 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Thanks, Yvon

I believe you are = right, =20 It would certainly take more torque to turn the larger propeller. = The=20 larger propeller is turning approx 31.5 revolutions per second, so = it=20 appears to be moving a lot of air. Hopefully, we will see more=20 acceleration and climb.

Ed Anderson
RV-6A N494BW Rotary=20 Powered
Matthews, NC

----- Original Message -----
From:=20 g=E9raldine=20 berger-yvon cournoyer
To: Rotary motors in = aircraft

Sent: Friday, September 10, = 2004 5:30=20 PM

Subject: [FlyRotary] Re: First = engine run=20 with Monster Prop

----- Message d'origine -----

De=20 : Ed Anderson

=C0 : Rotary motors in = aircraft=20

Envoy=E9 : 9 sept. 04 = 15:07

Objet : [FlyRotary] First = engine run=20 with Monster Prop

Temperatures were normal. = After extended=20 runup the oil temps approached 190F and coolant temp got up to 210F = this is=20 what I would normally see. Considering that the static rpm was = the=20 same as my old gearbox and prop, it likely I was producing the same = HP and=20 therefore would not expect major difference. The larger prop = did not=20 seem to interfere with the cooling airflow - at least on the=20 ground.

Considering the differences in diameter and = pitch between=20 your old and new propellers, I believe you were producing more = torque=20 at the propeller shaft since you were turniing the same engine rpm = as of=20 old.

Congratulations on those excellent = results.

Yvon.

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