John Hauck
Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)
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 Posted: Fri Feb 01, 2008 11:07 am Post subject: Test Flight |
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Gang:
Turned out to be a beautiful day after all. Sun is shining, a little windy,
and the temp is 49F.
I got the mag drop problem solved couple days ago. Prior to that, had been
experiencing a little abnormal vibration, i.e., a vibration that had not
been there before. Suspect the lean in mid-range condition was probably
contributing to that also.
Murphy is a slick character. All this started after I returned from out
West after an absence of two months. The mkIII had stood silently waiting
to fly since the first of October, three months prior. Before I flew I
pulled the gear box, resealed it, which meant pulling the prop. Changed the
oil and filter, and away we went. About the same time the weather had
gradually gotten colder. Each time I flew it, I was detecting a slight mag
drop on one side, while also feeling a little vibration in the airplane that
had not been there before. Really got the old imagination working, but in
the wrong direction, until I started experimenting with the enricher.
I ran out of day light when I raised the needles to the last notch, but did
get to do a couple mag checks. The 912ULS got crisp and light, just like
she always has. Hopefully, I got rid of the vibration, but if not it may be
a blade out of pitch a tad. That will also do it and is most likely the
gremlin. Hope not cause I don't want to repitch in the cold. However,
wouldn't hurt to lighten the pitch just a little to get a little more rpm
out of it on takeoff and back up to hitting the red line at 5,500 rpm during
WOT, straight and level flight. That'll have me zipping along at 95 mph
WOT, cruising at 85 mph. That's fast enough to get me anywhere I want to go
in the North American Continent.
Take care,
john h
mkIII
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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama |
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