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1. 08:26 AM - Re: 3300 exhaust system (N1BZRich@aol.com)
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| Subject: | Re: 3300 exhaust system |
Peter,
I still don't have the right prop. The current one is a 64ZK55 wood
Sensenich and I can still over speed the engine at WOT by quite a bit - even up
at 5000 feet or more. At sea level I really have to bring the throttle back
to keep it at 3300 rpm and with that I am seeing an average of 205 MPH
indicated. At 5000 feet on a standard day I can overspeed the engine with this
prop by something over 150 rpm. True airspeed in MPH at 5000 and the throttle
pulled back to 3300 is something like 185 to 188 mph tas. I have a 62FK68 on
order that should be closer to the right prop. Will likely be at least
another month until that shows up. In the mean time, with the current prop, I
cruise at 8,000 to 10,000 feet on an XC at about 170 mph tas but am only
burning about 5.8 gallons per hour - pretty good economy. Even with this current
prop take off roll is still short (about 600' at gross weight), and rate of
climb is still good (initially about 1200 fpm).
Blue Skies,
Buz
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