Mailing List lml@lancaironline.net Message #44235
From: Paul Lipps <elippse@sbcglobal.net>
Sender: <marv@lancaironline.net>
Subject: Static Thrust
Date: Sun, 30 Sep 2007 23:21:59 -0400
To: <lml@lancaironline.net>
PSL 30.06", PSFC 29.72", MAP 28.25 Avg", OAT 15C, 2230 RPM, Thrust 220 LB, HP=125 X2230/2800X28.25"/28.4"*=99HP. 
 
ELIPPSE three-blade prop. 220 lb/(1350 lb/32.17) = 5.24 ft/sec^2 initial acceleration= 17.3 sec to 62 mph without rpm increase and 784 ft.
 
* 28.4" is the typical MAP at SL conditions, a 1.5" drop across the carburetor.
 
There I was,sight-seeing around my home, wondering why my wing fuel caps were so hard to close when I fueled it up, when I looked out at my right wing. There was the cap sticking up 1/4"! Looking to the left, same thing. I slowed down and returned to SMX. 'Turns out the cam lever had so much friction it really wasn't seating and pulling the cone up into the rubber donut. I applied silicon grease at the base of the cam lever and between the donut and cone. 'Locking just fine now!
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