X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao103.cox.net ([68.230.241.43] verified) by logan.com (CommuniGate Pro SMTP 5.3.2) with ESMTP id 4118735 for flyrotary@lancaironline.net; Tue, 09 Feb 2010 22:45:54 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.43; envelope-from=rv-4mike@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmmtao103.cox.net (InterMail vM.8.00.01.00 201-2244-105-20090324) with ESMTP id <20100210034519.IAHE19579.fed1rmmtao103.cox.net@fed1rmimpo01.cox.net> for ; Tue, 9 Feb 2010 22:45:19 -0500 Received: from willsPC ([68.105.86.80]) by fed1rmimpo01.cox.net with bizsmtp id g3lJ1d00V1k005Q033lKeh; Tue, 09 Feb 2010 22:45:19 -0500 X-VR-Score: 0.00 X-Authority-Analysis: v=1.1 cv=qY0/QvRffkjURHWZjC3q+nTs9PdPIIJxYa32KydkvE8= c=1 sm=1 a=TWlVO4UZOuUA:10 a=XruvlouZCDbGUgEaRUiNZQ==:17 a=PTjpUPPNQp8Qpyke5NsA:9 a=C0VxeSaxSquPkXYeG6t0CprO6M4A:4 a=UretUmmEAAAA:8 a=Ia-xEzejAAAA:8 a=rhFb0P_EoLRVBUonK18A:7 a=7GxgSJ-xaszSR_CK8WYarfoIAmIA:4 a=iVkDmfvjeKcA:10 a=EzXvWhQp4_cA:10 a=XruvlouZCDbGUgEaRUiNZQ==:117 X-CM-Score: 0.00 Message-ID: <9A23C316C69A46C6AFAA7BAD1E16C5A9@willsPC> From: "Mike Wills" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: rpm vs Power was : Throttle limits was Re: N.A. Renesis to turbo Date: Tue, 9 Feb 2010 19:45:18 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0095_01CAA9C0.686A91B0" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8089.726 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8089.726 This is a multi-part message in MIME format. ------=_NextPart_000_0095_01CAA9C0.686A91B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable When you guys put out these numbers (RPM, speed, etc...) would also be = helpful to know at what altitude. I assume at or close to sea level? I = havent yet made any speed runs at low altitude. Mike From: Tracy Crook=20 Sent: Tuesday, February 09, 2010 5:27 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: rpm vs Power was : Throttle limits was Re: N.A. = Renesis to turbo Tracy, if you have the data could you give us the RPMs you saw at the = 205 and 217.5 air speeds? Dennis H.=20 Renesis RV-7A Austin, Tx. That was 209 and 217.5 =20 the 209 mph speed was with the 2.176 drive turning a 68 - 71 prop with = engine turning 6300 , mixture leaned to 17 gph. On other occasions I = could push it to 6400 at best power mixture burning 20 gph. The 217.5 mph was with a 2.85 drive turning a 74 - 88 prop with engine = turning 7250. I didn't get a good read on the fuel flow but obviously = it would have been higher. I remember requesting priority landing after = the race due to low fuel. =20 Neither run was done at best power mixture but leaned a few gph less = than max. Tracy ------=_NextPart_000_0095_01CAA9C0.686A91B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
When you guys put out these numbers (RPM, = speed, etc...)=20 would also be helpful to know at what altitude. I assume at or close to = sea=20 level? I havent yet made any speed runs at low altitude.
 
Mike

Sent: Tuesday, February 09, 2010 5:27 PM
Subject: [FlyRotary] Re: rpm vs Power was : Throttle limits = was Re:=20 N.A. Renesis to turbo

Tracy, if you have the data could you give us = the =20 RPMs you saw at the 205 and 217.5 air speeds?

Dennis H. =
Renesis=20 RV-7A
Austin, Tx.

That was 209 and=20 217.5   

the 209 mph speed was with the 2.176 = drive=20 turning a 68 - 71 prop with engine turning 6300 , mixture leaned to 17=20 gph.  On other occasions I could push it to 6400 at best power = mixture=20 burning 20 gph.

The 217.5 mph was with a 2.85 drive turning a 74 = - 88=20 prop with engine turning 7250.  I didn't get a good read on the = fuel flow=20 but obviously it would have been higher.  I remember requesting = priority=20 landing after the race due to low fuel.  

Neither run = was done=20 at best power mixture but leaned a few gph less than=20 max.

Tracy
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