X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mtiwmhc11.worldnet.att.net ([204.127.131.115] verified) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1124369 for flyrotary@lancaironline.net; Tue, 23 May 2006 01:25:38 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.131.115; envelope-from=keltro@att.net Received: from mwebmail21.att.net ([204.127.135.60]) by worldnet.att.net (mtiwmhc11) with SMTP id <20060523052453111004agkae>; Tue, 23 May 2006 05:24:53 +0000 Received: from [63.157.95.203] by mwebmail21.att.net; Tue, 23 May 2006 05:24:51 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Questions from a potential rotaryphile Date: Tue, 23 May 2006 05:24:51 +0000 Message-Id: <052320060524.16155.44729CA20005BFCB00003F1B2160383116019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Feb 28 2006) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_16155_1148361891_0" --NextPart_Webmail_9m3u9jl4l_16155_1148361891_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Bill, Do you know what EFI system will be installed on the Powersport next ? I am not sure +/- 10% mixture control will be enough for aggressive leaning........Tracy's EC2 has +/- 50% rich/lean manual mixture control........ -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from WRJJRS@aol.com: -------------- In a message dated 5/22/2006 11:33:51 AM Pacific Standard Time, keltro@att.net writes: Ed, Al and all, My first post about the "Sport Aviation" Rotary/Lycoming comparison questioned the fuel burn part of the test........It is my understanding that the "Powersport" fuel system lacks a leaning system........Does anyone in the group know if this is true ?? If this is true that would severely affect the Rotary fuel burn numbers........On the other hand if the "Powersport" system has a leaning capability do the owners know that the Rotary can be leaned very aggressively compared to the Lycoming as proved by Tracy Crook and verified by many others........Tracy has reported fuel specifics of as low as .47 lbs/hp/hr with aggressive leaning if I recall correctly !! Jump in here and help defend the Rotary reputation Tracy , Ed and any others now flying with "Real World Experience" !!! IMHO -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 Kelly, And all, The Powersport system used in the test did NOT have leaning capacity. The Powersport principle owner reported on the other list. He said the system was far from optimized. He also commented the next system will allow +- 10% on mixture. The comment was also made that the new exhaust system is much quieter. The original was 92-93 DB at 50' which is loud. The new system is expansive but reported to be 89 DB which is much quieter. For aircraft use tuning will result in much better fuel burns. We also seem to need to be sure to have somekind of dynamic mixture control. Bill Jepson --NextPart_Webmail_9m3u9jl4l_16155_1148361891_0 Content-Type: text/html Content-Transfer-Encoding: 8bit
Bill,
  Do you know what EFI system will be installed on the Powersport next ? I am not sure +/- 10% mixture control will be enough for  aggressive leaning........Tracy's
EC2 has +/- 50% rich/lean manual mixture control........
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2




-------------- Original message from WRJJRS@aol.com: --------------

In a message dated 5/22/2006 11:33:51 AM Pacific Standard Time, keltro@att.net writes:
Ed, Al and all,
    My first post about the "Sport Aviation" Rotary/Lycoming comparison questioned
the fuel burn part of the test........It is my understanding that the "Powersport" fuel
system lacks a leaning system........Does anyone in the group know if this is true ??
    If this is true that would severely affect the Rotary fuel burn numbers........On the
other hand if the "Powersport" system has a leaning capability do the owners know
that the Rotary can be leaned very aggressively compared to the Lycoming as proved
by Tracy Crook and verified by many others........Tracy has reported fuel specifics
of as low as .47 lbs/hp/hr with aggressive leaning if I recall correctly !!
   Jump in here and help defend the Rotary reputation Tracy , Ed and any others now
flying with "Real World Experience" !!! IMHO
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2
Kelly,
And all, The Powersport system used in the test did NOT have leaning capacity. The Powersport principle owner reported on the other list. He said the system was far from optimized. He also commented the next system will allow +- 10% on mixture. The comment was also made that the new exhaust system is much quieter. The original was 92-93 DB at 50' which is loud. The new system is expansive but reported to be 89 DB which is much quieter. For aircraft use tuning will result in much better fuel burns. We also seem to need to be sure to have somekind of dynamic mixture control.
Bill Jepson
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