Mailing List flyrotary@lancaironline.net Message #7978
From: Finn Lassen <finn.lassen@verizon.net>
Subject: Re: [FlyRotary] Re: Tracy's dyno test- universal intake comments
Date: Mon, 10 May 2004 09:40:06 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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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