X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.122] verified) by logan.com (CommuniGate Pro SMTP 5.4c3j) with ESMTP id 4949598 for flyrotary@lancaironline.net; Mon, 18 Apr 2011 07:45:45 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.122; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=1.1 cv=r4yJ8ACLDmU9N8MfnU6qGSvboKzSN9UnPAeXToqJDNE= c=1 sm=0 a=5qYtEaTt718A:10 a=rPkcCx1H5rrOSfN0dPC7kw==:17 a=tHoqZwu1Nv5G3zz14IoA:9 a=wPNLvfGTeEIA:10 a=ayC55rCoAAAA:8 a=Ia-xEzejAAAA:8 a=4PR2P7QzAAAA:8 a=BX702u_ovYyGp_SE_ZkA:9 a=50agqjDsbC-0zJsFLUUA:7 a=EzXvWhQp4_cA:10 a=djSSOgbfo6cA:10 a=rPkcCx1H5rrOSfN0dPC7kw==:117 X-Cloudmark-Score: 0 X-Originating-IP: 174.110.167.5 Received: from [174.110.167.5] ([174.110.167.5:51619] helo=EdPC) by cdptpa-oedge01.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id 34/7A-09483-7442CAD4; Mon, 18 Apr 2011 11:45:11 +0000 Message-ID: From: "Ed Anderson" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: 16X Torque and Fuel Economy Date: Mon, 18 Apr 2011 07:45:07 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0021_01CBFD9C.89D51600" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 This is a multi-part message in MIME format. ------=_NextPart_000_0021_01CBFD9C.89D51600 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable One reason I never put a turbo on my Rv-6A is that I never (very seldom) = fly high and fast enough to even use all of my N/A power much less need = additional power. However, one spot where you can never have too much = power (in my opinion) is heavy weight take offs on high altitude density = days and short runways with trees at the end - and if I can get 20-40 = more HP while losing 20-40 lbs in engine weight from the 16X - I'LL TAKE = IT! Ed From: Ernest Christley=20 Sent: Sunday, April 17, 2011 10:18 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: 16X Torque and Fuel Economy On 04/16/2011 06:37 AM, Ed Anderson wrote:=20 Well, not necessarily, Bill - if you improve the BSFC by improving the = combustion process through various means (direct injection, different = combustion chamber geometry, etc) you can theoretically get more HP with = less fuel used - NOT that we are likely to see that. But, I would agree = that for all practical purposes, if you want twice the HP, you had = better plan on twice the fuel burn. Ed That's not a bad equation, as a first estimation; but, isn't improving = BSFC the point in the reshaped combustion chamber and direct injection? Just because you have an extra 100Hp doesn't mean you have to use it. =20 ok...I agree....that last statement was a little ridiculous. I mean, we = are "hairy chested" and all. =20 ------=_NextPart_000_0021_01CBFD9C.89D51600 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
One reason I never put a turbo on my Rv-6A is = that I never=20 (very seldom) fly high and fast enough to even use all of my N/A = power much=20 less need additional power.  However, one spot where you can never = have too=20 much power (in my opinion) is heavy weight take offs on high = altitude=20 density days and short runways with trees at the end - and if I can get = 20-40=20 more HP while losing 20-40 lbs in engine weight from the 16X - I'LL TAKE = IT!
 
Ed
 

Sent: Sunday, April 17, 2011 10:18 PM
Subject: [FlyRotary] Re: 16X Torque and Fuel=20 Economy

On 04/16/2011 06:37 AM, Ed Anderson wrote:=20
Well, not necessarily, Bill - if you = improve the=20 BSFC by improving the combustion process through various means (direct = injection, different combustion chamber geometry, etc) you can = theoretically=20 get more HP with less fuel used - NOT that we are likely to see = that. =20 But, I would agree that for all practical purposes, if you want twice = the HP,=20 you had better plan on twice the fuel burn.
 
Ed
 

That's not a bad equation, as a = first=20 estimation; but, isn't improving BSFC the point in the reshaped = combustion=20 chamber and direct injection?

Just because you have an extra = 100Hp=20 doesn't mean you have to use it. 

ok...I agree....that last = statement was a little ridiculous.  I mean, we are "hairy chested" = and=20 all. 
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