Hi, just received the Dec 2004 issue of the Europa Flyer.
I am very interested to see that Brian Allsop managed to get his Kremen
CS/VP prop approved without a manifold pressure gauge.
When I put my Airmaster on my aircraft at the initial build I saw that
Airmaster and Rotax did not require a MAP and so built my panel accordingly.
When it came to the Permit to Test Fly Donaldson INSISTED on the fitting of
a MAP. I argued that there was no requirement from the manufacturer of
either bit of kit. He insisted. Sending me a copy of some JAR "minimum
equipment" list which showed that a MAP was required for a CS prop. Probably
written in 1948 !
Anyway he is the king of this stuff and I had no option but to fit it
(spitting !) on a sub-panel that destroyed the looks of my panel.
Actually it is very useful for setting power.
So how come Brian didn't need one ? It is only required for CS props - not
VP props.
I am interested about the description of VP and CS in the article. The
Airmaster gives a VP option just as an aside. I have not used it yet. The
Airmaster controller has switched positions for Take-Off (5700 rpm) Climb
(5400) and Cruise (5000) plus a position where you can set any rpm you want.
The Kremen seems to be a mixture of CS and VP almost as separate functions,
when really the CS could be used all the time if all the required features
are there.
Unless someone disagrees !
:-)
Richard
Richard F.W. Holder 01279 842804 (POTS)
Bell House, Bell Lane, 01279 842942 (fax)
Widford, Ware, Herts, 07860 367423 (mobile)
SG12 8SH email : richard.holder@avnet.co.uk
Europa Classic Tri-gear : G-OWWW, High Cross
PA-28-181 : Piper Archer : G-JANA, EGSG (Stapleford)
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