Return-Path: <13brv3@bellsouth.net> Received: from imf20aec.mail.bellsouth.net ([205.152.59.68] verified) by logan.com (CommuniGate Pro SMTP 4.2b3) with ESMTP id 3225445 for flyrotary@lancaironline.net; Mon, 10 May 2004 20:53:30 -0400 Received: from rad ([65.6.194.9]) by imf20aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with ESMTP id <20040511005320.MVYC25885.imf20aec.mail.bellsouth.net@rad> for ; Mon, 10 May 2004 20:53:20 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Tracy's dyno test- universal intake comments Date: Mon, 10 May 2004 19:53:23 -0500 Message-ID: <017e01c436f2$5c8349b0$6001a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_017F_01C436C8.73AD41B0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_017F_01C436C8.73AD41B0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable On a standard day (rare in Florida) I might see 5000 - 5100. But = normally 4900 - 4950.=20 =20 So let me get this straight, you're using a carb, and have low = compression, have 3 more inches of pitch, and are still getting 100-200 more static = rpm than me??? Good thing I don't have a gas oven to stick my head in :-) =20 My climb rate seems to be influenced by amount of fuel I carry. = Difference between 5 and 15 gallons is significant.=20 =20 This is a good point, and may explain why I only got 1300 fpm the other = day (completely topped off), when I was getting 1500 with the Warp (fuel = level unknown). I'm almost afraid to ask, but what sort of climb rate do you get? =20 =20 Did you get my prop numbers from Clark? The original numbers were 68x74. = Not sure what it is now.=20 =20 I had these numbers from before, but have not asked Clark. He did tell = me that Tracy's old prop started out as a 70x73, then was modified to = 68x71. Did you ask for more rpm when you sent it back for final tuning? If so, = you are certainly at less than 74" pitch now. =20 =20 Thanks, Rusty (not a happy guy)=20 ------=_NextPart_000_017F_01C436C8.73AD41B0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
On a standard day (rare in Florida) I might see 5000 - 5100. But = normally=20 4900 - 4950. 
 
So let me get=20 this straight, you're using a carb, and have low = compression, have 3=20 more inches of pitch, and are still getting 100-200 more = static rpm=20 than me???  Good thing I don't have a gas oven to stick my = head in=20 :-)
  
My climb = rate seems=20 to be influenced by amount of fuel I carry. Difference between 5 and 15 = gallons=20 is significant. 
 
This is a=20 good point, and may explain why I only got 1300 fpm the other day = (completely=20 topped off), when I was getting 1500 with the Warp (fuel level=20 unknown).   I'm almost afraid to ask, but what sort of climb = rate do=20 you get? 
 
Did you get my = prop numbers=20 from Clark? The original numbers were 68x74. Not sure what it is = now. 
 
I had these=20 numbers from before, but have not asked Clark.  He did tell me that = Tracy's=20 old prop started out as a 70x73, then was modified to 68x71.  = Did=20 you ask for more rpm when you sent it back for final = tuning?  If=20 so, you are certainly at less than 74" pitch=20 now.  
 
Thanks,
Rusty (not a=20 happy guy) 

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