Return-Path: <13brv3@bellsouth.net> Received: from imf21aec.mail.bellsouth.net ([205.152.59.69] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 762155 for flyrotary@lancaironline.net; Sun, 27 Feb 2005 21:22:49 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.69; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf21aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050228022205.FBHQ2296.imf21aec.mail.bellsouth.net@rd> for ; Sun, 27 Feb 2005 21:22:05 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: A little down on power Date: Sun, 27 Feb 2005 20:22:45 -0600 Message-ID: <000001c51d3c$63c18f80$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C51D0A.19271F80" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C51D0A.19271F80 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Are you trying to set max speed cruise at some low rpm like 5000? Not at 5000. I've already turned it at 5600, and that was without wheel pants. Clark designed it for an rpm of 6300, so I'm not that far off. = The general idea was to optimize for cruise at the expense of take-off and climb. Of course I plan to get it cut back, but I want to get some = better numbers with the pants on before sending it back. I'm thinking of = getting a 2 blade backup prop based on these numbers before sending the 3 blade = back so I wont be grounded for 4-6 weeks. =20 I think you can work it out so it won't be that long without the prop. = Mine took about a month, but I didn't try to time it to his availability, and it's also winter, and he can only do the painting when it's warm enough. I'd bet you could get this to a two week turn around if necessary. =20 =20 If I were you, I'd seriously consider sending the prop back now, and = having him cut it back some, without doing the final finish. This will be = extra charge, but your static rpm is just too low, assuming the engine is = healthy. I would also do a compression check, because I can't imagine Lynn being wrong too many times. =20 =20 Good luck,=20 Rusty (no engine run today, but it's ready) ------=_NextPart_000_0001_01C51D0A.19271F80 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Are you trying = to set max=20 speed cruise at some low rpm like 5000?
Not at 5000. I've already turned it at 5600, = and that=20 was without wheel pants. Clark designed it for an rpm of 6300, so I'm = not that=20 far off.  The general idea was to optimize for cruise at the = expense of=20 take-off and climb. Of course I plan to get it cut back, but I want = to get=20 some better numbers with the pants on before sending it back. I'm = thinking of=20 getting a 2 blade backup prop based on these numbers before sending the = 3 blade=20 back so I wont be grounded for 4-6=20 weeks.
 
I think you = can work it=20 out so it won't be that long without the prop.  Mine took about a = month,=20 but I didn't try to time it to his availability, and it's also = winter, and=20 he can only do the painting when it's warm enough.  I'd bet you = could get=20 this to a two week turn around if=20 necessary.  
&nbs= p;
If I were = you, I'd=20 seriously consider sending the prop back now, and having him cut it = back=20 some, without doing the final finish.  This will be extra charge, = but your=20 static rpm is just too low, assuming the engine is healthy. =20 I would also do a compression check, because = I can't=20 imagine Lynn being wrong too many times. =20
&nbs= p;
Good luck,=20
Rusty (no = engine run=20 today, but it's=20 ready)
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