"Peter Duniho" wrote in message
...

Well, we'd only climbed a few hundred feet when something in the
airplane
started making a very strange noise. My friend's wife heard it too.
It was
sort of a rapid "growling" sound, lasting a second or two at a time,
with
maybe five or ten seconds between. It seemed most likely to be coming
from
the engine, but it was subtle enough I couldn't rule out some sort of
airframe flutter.

Might be the electric hydraulic pump. It will growl if it's flooded with
hydraulic fluid.
Have it checked anyway!
Dudley Henriques
International Fighter Pilots Fellowship
Commercial Pilot/ CFI Retired
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