Return-Path: Received: from bittern.mail.pas.earthlink.net ([207.217.120.119] verified) by logan.com (CommuniGate Pro SMTP 4.2b3) with ESMTP id 3225556 for flyrotary@lancaironline.net; Mon, 10 May 2004 21:47:43 -0400 Received: from user-2injrke.dialup.mindspring.com ([165.121.238.142] helo=Carol) by bittern.mail.pas.earthlink.net with smtp (Exim 3.33 #1) id 1BNMMv-00049E-00 for flyrotary@lancaironline.net; Mon, 10 May 2004 18:47:42 -0700 Message-ID: <00b701c436f9$efd9ee10$0000a398@Carol> From: "sqpilot@earthlink" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] injector relocation predictions? Date: Mon, 10 May 2004 20:47:33 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00B4_01C436D0.04935B40" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2720.3000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2739.300 This is a multi-part message in MIME format. ------=_NextPart_000_00B4_01C436D0.04935B40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Monday, May 10, 2004 8:33 PM Subject: [FlyRotary] injector relocation predictions? Greetings, As I mentioned before, one of the relatively easy options for = improvement will be to move the 4 injectors, and keep the current = intake. As they are now, all 4 injectors are in the TB, which is 30 = inches away on the cold side of the engine. I believe I can mount the = two stock primaries back in the block, and can probably mount the two = secondaries in the intake, maybe 2 inches from the engine. =20 Here's the question, do you think this will increase power? In other = words, am I losing power by having the injectors coating the inside of = the long tubing, rather than efficiently delivering the fuel to the = engine? =20 That is what Mistral Engines are now doing with their engine. (I just = sent you some pictures of their setup), as well as an explanation of why = they did it this way. Unfortunately, the moderator bounced the message = back from the Fly Rotary group stating that the message was too long, so = I sent it to you directly. Thanks, Rusty (thinking of draining one fuel tank, and filling it with helium = to improve climb) =20 Don't forget to re-do your weight and balance with the helium on = board. Paul Conner ------=_NextPart_000_00B4_01C436D0.04935B40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
 
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Monday, May 10, 2004 8:33 = PM
Subject: [FlyRotary] injector = relocation=20 predictions?

Greetings,
 
As I = mentioned before,=20 one of the relatively easy options for improvement will be to move the = 4=20 injectors, and keep the current intake.  As they are now, all 4 = injectors=20 are in the TB, which is 30 inches away on the cold side of the=20 engine.  I believe I can mount the two stock primaries back in = the block,=20 and can probably mount the two secondaries in the intake, maybe 2 = inches from=20 the engine.  
 
Here's the = question, do=20 you think this will increase power?  In other words, am I losing = power by=20 having the injectors coating the inside of the long tubing, rather = than=20 efficiently delivering the fuel to the=20 engine?  
 
That is what = Mistral=20 Engines are now doing with their engine. (I just sent you some = pictures of=20 their setup), as well as an explanation of why they did it this way.=20 Unfortunately, the moderator bounced the message back from the Fly = Rotary=20 group stating that the message was too long, so I sent it to you=20 directly.
 
Thanks,
Rusty = (thinking of=20 draining one fuel tank, and filling it with helium to improve=20 climb)   
 
Don't forget = to re-do=20 your weight and balance with the helium on board.
Paul=20 Conner
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