Return-Path: Received: from out006.verizon.net ([206.46.170.106] verified) by logan.com (CommuniGate Pro SMTP 4.2b3) with ESMTP id 3224325 for flyrotary@lancaironline.net; Mon, 10 May 2004 09:40:11 -0400 Received: from verizon.net ([4.12.145.173]) by out006.verizon.net (InterMail vM.5.01.06.06 201-253-122-130-106-20030910) with ESMTP id <20040510134010.XZSL23663.out006.verizon.net@verizon.net> for ; Mon, 10 May 2004 08:40:10 -0500 Message-ID: <409F8636.9000603@verizon.net> Date: Mon, 10 May 2004 09:40:06 -0400 From: Finn Lassen User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax; PROMO) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Tracy's dyno test- universal intake comments References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------080300080105090706000405" X-Authentication-Info: Submitted using SMTP AUTH at out006.verizon.net from [4.12.145.173] at Mon, 10 May 2004 08:40:10 -0500 This is a multi-part message in MIME format. --------------080300080105090706000405 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Russell Duffy wrote: > BTW, what do you get for static rpm Finn? Best I can tell, you have 3 > more inches of pitch than Tracy's old prop, but with the same diameter. > > Rusty (scaring myself and the airport neighbors later) On a standard day (rare in Florida) I might see 5000 - 5100. But normally 4900 - 4950. I rarely run up to full static. Usually to 4500 RPM or so. Since 3600 is enough for 100 mph straight and level I see no point in routinely running up to full static RPM. My climb rate seems to be influenced by amount of fuel I carry. Difference between 5 and 15 gallons is significant. Did you get my prop numbers from Clark? The original numbers were 68x74. Not sure what it is now. Finn --------------080300080105090706000405 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Russell Duffy wrote:

Message
BTW, what do you get for static rpm Finn? Best I can tell, you have 3 more inches of pitch than Tracy's old prop, but with the same diameter.

Rusty (scaring myself and the airport neighbors later)

On a standard day (rare in Florida) I might see 5000 - 5100. But normally 4900 - 4950.
I rarely run up to full static. Usually to 4500 RPM or so. Since 3600 is enough for 100 mph straight and level I see no point in routinely running up to full static RPM.
My climb rate seems to be influenced by amount of fuel I carry. Difference between 5 and 15 gallons is significant.
Did you get my prop numbers from Clark? The original numbers were 68x74. Not sure what it is now.

Finn
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