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Marv, I read with interest your account of the first flight of the Walter
powered IV-P.  I do not know where you reside or who did the conversion,
but clearly the walter engine is a winner, IF the installation in its
entirety is done in conformance with the Walter Type Certificate.  I have a
C-90 that began the conversion under a bogus STC by a scam group out of
Tennessee by the name of Phoenix Corp which is now in
bankruptcy(thankfully)!!  It had to be completed by Turbine Design out of
Deland, FL.  Douglas Karlsen is probably as knowledgeable as anyone on the
Walter and has installed probably100 or so of these and has developed the
STC for several ag planes and holds the STC for the only King Air Walter
conversion using the E-11 engine.  Some key learnings were the limiter
system MUST be installed that limits torque and temp, especially critical
with the starts.  Several Walter's have come apart when the limiter was not
installed(not a pretty sight).  Also the fuel filter is of a special type
that I believe is a 10 micron.  The engine mount of course is important as
well.  I would suggest that your friend contact Doug as he is working on
some interesting mods for the Walter including the exhaust stacks and a
pitot inlet to increase the power at altitude.  You might check out his web
site at www.turbinedesign.com.
I hope the above helps.
Jack Pezold

Jack Pezold
706.324.1650x112
706.324.5147fax
jpezold@gageo.com

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Please send your photos and drawings to marvkaye@olsusa.com.
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