X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from yx-out-2324.google.com ([74.125.44.29] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3638256 for flyrotary@lancaironline.net; Sun, 10 May 2009 23:27:48 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.125.44.29; envelope-from=wgeslick@gmail.com Received: by yx-out-2324.google.com with SMTP id 8so1681752yxg.7 for ; Sun, 10 May 2009 20:27:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=nINCWtOoroglMdIjLhdLyRWW5TSaSerWOr7zBaWJNb0=; b=mSagWb2twQmy/lrX4t/8PIiHvM3Xnq4IGO4vuBFKvbiPU6h4LAFH/+RUqJxLeJSc1b 1fzNS3/ggdkI5PWNF6CJzh+oWqLjWd+SN5Q8cWW9w3g9JD0Y/gbnQNtFHKkC16w2UIY3 RGijvW1Sv+nQIOEZTQst6o1zzDNMlJ4d2F9dM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=srGquv3JL6lb1F4LlZDNGsTwo9RnGSMRbL7TadbaoQoSQhVMJUjF6GGbsjn0IT5EA/ syN/SFXKMMZuCW7F/eUWhUdLDXeVf7OeSoHksAS+Rq3EAleRkSuEM79MqWBGIACxTa0l VbyPbW+d4VHyYO0CuhWvPhVgo48VtpdGsZiVg= MIME-Version: 1.0 Received: by 10.100.91.19 with SMTP id o19mr15872854anb.48.1242012115275; Sun, 10 May 2009 20:21:55 -0700 (PDT) In-Reply-To: References: Date: Sun, 10 May 2009 22:21:55 -0500 Message-ID: <3c14c5540905102021n70443b4csccbba21e2c68eb28@mail.gmail.com> Subject: Re: [FlyRotary] Fuel Effeciency From: Bill Eslick To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0016e6435952f013f704699a7a8f --0016e6435952f013f704699a7a8f Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Dennis, It was certainly nice having you attend our Fly-In at Chapter 983. Brought the total rotaries up to three for the event. The efficiency is certainly good news! I may have to wave this news in front of some of my nay-saying neighbors! Bill Eslick On Sun, May 10, 2009 at 10:16 PM, Dennis Haverlah wrote: > My neighbor and I both have RV-7A's. He has a carborated Lycoming 360 > with "E" Mags and claims about 185+ hp with a fixed pitch metal prop. He > told me the "E" mags really improved fuel efficiency and added noticeable > horsepower. I have a 4 port Renesis with Tracy's RD-1C and Catto 76/88 > composite prop. We have similar performance on take-off and climb - we will > be doing some high altitude speed runs in the future. > > Saturday we flew in *formation* from Austin (40XS) to south west of > Dallas (0TX1) and returned. Total flight mileage was about 140 miles each > way. We filled both tanks on each aircraft to the filler neck before and > after the flight. He uses 100 LL avgas and I use regular car gas. At 0TX1 > I had to execute a go-around because 3 aircraft were taxing on the runway > and did not clear it for landing aircraft!. My neighbor was able to land > without going around. I estimate I used about 0.7 gal for the go-around. I > leaned the Renesis some but did not try to run as lean as possible. > > When we got home we checked the fuel meters on the mogas and 100 LL fuel > storage systems using a 5 gallon fuel container and made sure both fuel > delivery meters measured the same. > > After the flight I required 18.7 gal. -0 .7 for the go-around = 18.0 gal. > of mogas. My neighbor's aircraft took 19.0 gallons of 100 LL. > My fuel costs $2.00/gal or $36.00 His fuel costs $3.50/gal or $65.00. > > The Mazda Technical Papers on the Renesis indicate a *significant > improvement* in fuel efficiency over earlier RX-7 versions.. I believe > this flight proves it - the Renesis beat a Lycoming with fuel efficient "E" > mags. > > Dennis Haverlah > --0016e6435952f013f704699a7a8f Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Dennis,

It was certainly nice having you attend our Fly-In at Chapte= r 983.=A0 Brought the total rotaries up to three for the event.=A0 The effi= ciency is certainly good news!=A0 I may have to wave this news in front of = some of=A0 my nay-saying neighbors!

Bill Eslick

On Sun, May 10, 2009 at 1= 0:16 PM, Dennis Haverlah <clouduster@austin.rr.com> wrote:
=20 =20
My neighbor and I both have RV-7A's.=A0 He has a carborated Lycoming 36= 0 with "E" Mags and claims about 185+ hp with a fixed pitch metal p= rop. =A0 He told me the "E" mags really improved fuel efficiency and added noticeable horsepower.=A0 I have a 4 port Renesis with Tracy's RD-1C an= d Catto 76/88 composite prop.=A0 We have similar performance on take-off and climb - we will be doing some high altitude speed runs in the future.=A0

Saturday we flew in=A0 formation from Austin (40XS) to south west of Dallas (0TX1) and returned.=A0 Total flight mileage was about 140 miles each way.=A0 We filled both tanks on each aircraft to the filler neck before and after the flight.=A0 He uses 100 LL avgas and I use regular car gas.=A0 At 0TX1 I had to execute a go-around because 3 aircraft were taxing on the runway and did not clear it for landing aircraft!.=A0 My neighbor was able to land without going around.=A0 I estimate I used about 0.7 gal for the go-around.=A0 I leaned the Renesis some but did not try to run as lean as possible.=A0

When we got home we checked the fuel meters on the mogas and 100 LL fuel storage systems using a 5 gallon fuel container and made sure both fuel delivery meters measured the same.

After the flight I required 18.7 gal. -0 .7 for the go-around =3D 18.0 gal. of=A0 mogas.=A0=A0=A0 My neighbor's aircraft took 19.0 gallons of = 100 LL.
My fuel costs $2.00/gal or $36.00=A0 His fuel costs $3.50/gal or $65.00.
The Mazda Technical Papers on the Renesis indicate a significant improvement in fuel efficiency over earlier RX-7 versions..=A0 I believe this flight proves it - the Renesis beat a Lycoming with fuel efficient "E" mags.

Dennis Haverlah


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