X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [65.54.250.75] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1124277 for flyrotary@lancaironline.net; Mon, 22 May 2006 22:49:30 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.250.75; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 22 May 2006 19:48:46 -0700 Message-ID: Received: from 4.171.129.189 by BAY115-DAV3.phx.gbl with DAV; Tue, 23 May 2006 02:48:42 +0000 X-Originating-IP: [4.171.129.189] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] 100LL plug fouling / MPG Date: Mon, 22 May 2006 22:48:36 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00C2_01C67DF1.DC5A65E0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.20.0026.0800 Seal-Send-Time: Mon, 22 May 2006 22:48:36 -0400 X-OriginalArrivalTime: 23 May 2006 02:48:46.0010 (UTC) FILETIME=[692441A0:01C67E13] This is a multi-part message in MIME format. ------=_NextPart_000_00C2_01C67DF1.DC5A65E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable About 30 mpg is what I currently see under best case conditions (12,500 = - 14,500 MSL, 6.0 gph, 175 TAS). Interesting experiment on way back from Lumberton. 4 RVs departed for = Florida Sunday AM, 3 Lyc powered and my rotary. The Lyc guys were = taking too long to get packed up (I get antsy when I'm ready to go) so I = left 15 minutes before they did and told them I would go slow and meet = up on the way since we were flying the same flight plan. The Lyc guys = flew at 8.5 GPH power setting and I flew at 6.0 GPH. Had head winds all = the way but interesting part was that after 2.75 hr and 370 miles after = my takeoff, the Lycs caught up to me. The extra speed of those 2.5 GPH = really does not buy much! And I got to spend more time in my beloved = airplane : )=20 Fun & Relaxing trip & fly-in BTW. =20 Tracy (must get Ed's Gin & tonic formula) From: Perry Mick=20 To: Rotary motors in aircraft=20 Sent: Monday, May 22, 2006 12:33 PM Subject: [FlyRotary] 100LL plug fouling Al Wick might have got some of his "100LL in rotary" comments from my = experience. I can't burn 100LL, it will foul my leading spark plugs after only 4 = hours. That is because my engine runs rich-best power all the time. Of = course running rich results in a higher fuel burn too. These days I'm = doing about 160 knots on 8.8gph, or 184 mph @ 21 mpg.=20 Burning mogas all the time, my leading spark plugs still only last = about 50 to 60 hours. Trailings always look better. My 1988 RX-7 with exactly the same engine gets about 18.5 mpg combined = city/hwy driving, probably low 20s if it was continuous freeway. If I had lean control I would expect results more like Ed Anderson = with regard to 100LL and plug fouling. I would like to see some fliers express fuel usage in mpg, an easy way = to compare efficiencies. For example, Tracy and Ed leaning might see 25 = to 30 mpg? ------=_NextPart_000_00C2_01C67DF1.DC5A65E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 About 30 mpg is what I currently see under best case = conditions=20 (12,500 - 14,500 MSL, 6.0 gph, 175 TAS).
 
Interesting experiment on way back from Lumberton.  4 RVs = departed for=20 Florida Sunday AM, 3 Lyc powered and my rotary.  The Lyc guys = were=20 taking too long to get packed up (I get antsy when I'm ready to go) so I = left 15 minutes before they did and told them I would go slow and = meet up=20 on the way since we were flying the same flight plan.  The Lyc guys = flew at=20 8.5 GPH power setting and I flew at 6.0 GPH.  Had head winds all = the=20 way but interesting part was that after 2.75 hr  and = 370=20 miles after my takeoff, the Lycs caught up to me.   The extra = speed of=20 those 2.5 GPH really does not buy much!  And I got to spend more = time in my=20 beloved airplane : ) 
 
Fun & Relaxing trip & fly-in BTW. =20   
 
Tracy  (must get Ed's Gin & tonic formula)
From: Perry Mick
To: Rotary motors in = aircraft
Sent: Monday, May 22, 2006 = 12:33 PM
Subject: [FlyRotary] 100LL plug = fouling

Al Wick might have got some of his "100LL in rotary" comments = from my=20 experience.
I can't burn 100LL, it will foul my leading spark plugs after = only 4=20 hours. That is because my engine runs rich-best power all the time. Of = course=20 running rich results in a higher fuel burn too. These days I'm = doing=20 about 160 knots on 8.8gph, or 184 mph @ 21 mpg.
Burning mogas all the time, my leading spark plugs still only = last about=20 50 to 60 hours. Trailings always look better.
 
My 1988 RX-7 with exactly the same engine gets about 18.5 = mpg=20 combined city/hwy driving, probably low 20s if it was continuous=20 freeway.
 
If I had lean control I would expect results more like Ed = Anderson with=20 regard to 100LL and plug fouling.
 
I would like to see some fliers express fuel usage in mpg, = an easy=20 way to compare efficiencies. For example, Tracy and Ed leaning might = see 25 to=20 30 mpg?
------=_NextPart_000_00C2_01C67DF1.DC5A65E0--