X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from lrcmmta08-srv.windstream.net ([166.102.165.80] verified) by logan.com (CommuniGate Pro SMTP 5.3.2) with ESMTP id 4117827 for flyrotary@lancaironline.net; Tue, 09 Feb 2010 13:21:02 -0500 Received-SPF: pass receiver=logan.com; client-ip=166.102.165.80; envelope-from=montyr2157@windstream.net Return-Path: X-WS-COS: WSOB804 X-Cloudmark-Category: Undefined:Undefined X-Cloudmark-Analysis: v=1.1 cv=DcyuXM/dE5FM6ftloRm5rup310oluWGo04cuw5A0drk= c=1 sm=0 a=_lZFVVS9x50A:10 a=oCcaPWc0AAAA:8 a=a7hJ7TxFml3WzsfMmk0A:9 a=ZyWVGr3UUdiQniU0pN0A:7 a=uTG2XOYXhUbhKC4GXnMDvvjvCtQA:4 a=kviXuzpPAAAA:8 a=Ia-xEzejAAAA:8 a=7pmPKFSeCNkrNNte_CkA:9 a=fB3XjwnlcClvftjA93UA:7 a=nVCSYaelT7wzYsBQ_fjKGZSCVBQA:4 a=d-1ze5jHbJEA:10 a=4vB-4DCPJfMA:10 a=EzXvWhQp4_cA:10 a=9R5fF6ldNMlKU9SPPpQVPQ==:117 X-Cloudmark-Score: 0 Authentication-Results: lrcmmta08 smtp.user=montyr2157; auth=pass (LOGIN) Received: from [98.20.181.245] ([98.20.181.245:61645] helo=newbox) by lrcmmta08 (envelope-from ) (ecelerity 2.2.2.45 r()) with ESMTPA id C2/1F-03798-A67A17B4; Tue, 09 Feb 2010 12:20:26 -0600 Message-ID: <9558C1FFB2FC41A783CBA6F9228A4563@newbox> From: "MONTY ROBERTS" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: rpm vs Power was : Throttle limits was Re: N.A. Renesis to turbo Date: Tue, 9 Feb 2010 12:20:17 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0086_01CAA982.3D88F970" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 This is a multi-part message in MIME format. ------=_NextPart_000_0086_01CAA982.3D88F970 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hp =3D C*V^3 Is that simple enough? ;-) Monty ----- Original Message -----=20 From: Al Gietzen=20 To: Rotary motors in aircraft=20 Sent: Tuesday, February 09, 2010 12:10 PM Subject: [FlyRotary] Re: rpm vs Power was : Throttle limits was Re: = N.A. Renesis to turbo Ed wrote: The new set up gave a noticeable benefit in take off performance (and = I do mean noticeable). However, the top end was relatively unaffected - = although I did measure an approx 4 mph increase in top aircraft speed. OK; Ed - given your expertise on technical explanations, I'd like your = take on why your increased hp resulting from the increased RPM is not = giving you higher top end speed. Is it exhaust back pressure or less = than optimum prop, or other? Al -------------------------------------------------------------------------= ----- No virus found in this incoming message. Checked by AVG - www.avg.com=20 Version: 8.5.435 / Virus Database: 271.1.1/2677 - Release Date: = 02/09/10 07:35:00 ------=_NextPart_000_0086_01CAA982.3D88F970 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hp =3D C*V^3
 
Is that simple enough? ;-)
 
Monty
----- Original Message -----
From:=20 Al = Gietzen=20
Sent: Tuesday, February 09, = 2010 12:10=20 PM
Subject: [FlyRotary] Re: rpm vs = Power was=20 : Throttle limits was Re: N.A. Renesis to turbo

Ed=20 wrote:

The new set up gave a noticeable benefit in = take off=20 performance (and I do

mean noticeable).  However, the top end = was=20 relatively unaffected - although

I=20 did measure an approx 4 mph increase in top aircraft = speed.

 

OK; Ed = =96 given your=20 expertise on technical explanations, I=92d like your take on why your = increased=20 hp resulting from the increased RPM is = not giving=20 you higher top end speed.  Is it exhaust back pressure or less = than=20 optimum prop, or other?

 

Al


No virus found in this incoming message.
Checked by AVG = -=20 www.avg.com
Version: 8.5.435 / Virus Database: 271.1.1/2677 - = Release=20 Date: 02/09/10 07:35:00
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