Return-Path: Received: from [206.228.212.23] (HELO mail.statesville.net) by logan.com (CommuniGate Pro SMTP 4.2b2) with ESMTP id 3160589 for flyrotary@lancaironline.net; Sat, 10 Apr 2004 20:40:38 -0400 Received: from TWJames [63.162.171.178] by mail.statesville.net (SMTPD32-8.10) id A4C050A021E; Sat, 10 Apr 2004 20:43:44 -0400 From: "Tommy James" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: long comments after 2 hours on rev-2 Date: Sat, 10 Apr 2004 20:40:41 -0400 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0012_01C41F3C.16EC4BE0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 In-Reply-To: X-RBL-Warning: REVDNS: This E-mail was sent from a MUA/MTA 63.162.171.178 with no reverse DNS entry. X-Declude-Sender: twjames@statesville.net [63.162.171.178] X-Note: Scanned for Spam This is a multi-part message in MIME format. ------=_NextPart_000_0012_01C41F3C.16EC4BE0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit MessageRusty, I've had a very similar experience with the Ivo. I noticed a decline in FPM when I reduced the pitch about 4 degrees. I have not been more precise than that at this point but will look into it a little more when I get her flying again. Maybe you can help me with my ignition problem. Coil disable test indicated leading coil was not functioning, so I replaced the coil this morining. It still fails the test with the replacement coil. Must be something else... Duh! Tommy<>< I'll comment on the 1800 EGT thingie later.. I've had that one too...:-) The worst news is probably climb performance. The best I can manage now is 1500 fpm, which is still at only 100 mph. I'm hoping the wheel pants and fairings will improve this, and put it back in the 120 mph range where you would expect it to be. Either way, it's unlikely that I'll ever make it back to 2700 fpm like it was with the turbo. It does appear that the turbo was pulling it's own weight, but I'm still happy to be rid of it. This is another area where the prop pitch baffles me. You would think that reducing pitch, and increasing rpm would help climb, but that just isn't the case. At 13 degrees, the best climb was 1000 fpm, at 5400 rpm, and 100 mph. At 15 degrees, best climb is 1500 fpm, at 5100 rpm, and 100 mph. I just do NOT understand this, but it also happened back with the turbo. Is it possible that this is just something goofy about the Warp Drive prop? I want to run the engine at higher rpms, but neither speed, nor climb improves. Am I losing all the extra power on the prop? ------=_NextPart_000_0012_01C41F3C.16EC4BE0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Rusty,=20 I've had a very similar experience with the Ivo.  I noticed a = decline in=20 FPM when I reduced the pitch about 4 degrees.  I have not been more = precise=20 than that at this point but will look into it a little more when I get = her=20 flying again.
Maybe=20 you can help me with my ignition problem.  Coil disable test = indicated=20 leading coil was not functioning, so I replaced the coil this=20 morining.  It still fails the test with the replacement coil. = Must be=20 something else... Duh!
Tommy<>< 
I'll=20 comment on the 1800 EGT thingie later.. I've had that one=20 too...:-)
The worst news is = probably climb=20 performance.  The best I can manage now is 1500 fpm, which is = still at=20 only 100 mph.  I'm hoping the wheel pants and fairings will = improve this,=20 and put it back in the 120 mph range where you would expect it to = be. =20 Either way, it's unlikely that I'll ever make it back to 2700 fpm like = it was=20 with the turbo.  It does appear that the turbo was pulling it's = own=20 weight, but I'm still happy to be rid of it.   This is = another area=20 where the prop pitch baffles me.  You would think that = reducing=20 pitch, and increasing rpm would help climb, but that just isn't the=20 case.  At 13 degrees, the best climb was 1000 fpm, at 5400 = rpm, and=20 100 mph.  At 15 degrees, best climb is 1500 fpm, at 5100 rpm, and = 100=20 mph.   I just do NOT understand this, but it also = happened=20 back with the turbo.  Is it possible that this is just = something=20 goofy about the Warp Drive prop?  I want to run the = engine at=20 higher rpms, but neither speed, nor climb improves.  Am = I=20 losing all the extra power on the prop?
 
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