Following on from Duncan's comment about the 10A limit for the Jabiru
alternator, I thought I'd do a quick power calculation for my proposed
panel. One significant bit of info I'm lacking is the power drawn by
the engine instruments, ie tacho, oil temp/press, CHT. The factory
schematic shows these 4 (plus voltmeter) supplied by a 2 amp breaker,
ie 500 mA per instrument! This seems to be rather high. I've looked
through all of my catalogues and none quote the current spec, can any
one help please?
As far as the actual engine goes, it is very quiet and smooth. I was
lucky enough to fly in the demonstrator at Popham this weekend. The
flight was fairly brief, just one wide circuit. The airspace was
rather busy, so I spent more time concentrating on looking out than
examining the engine/performance figures. At one stage I removed my
headset and was still able to clearly hear the pilot (despite the
aircraft having no sound insulation on the firewall). There was some
slight vibration through the floor, but I suspect that was more
airstream generated because the panel/seats etc were perfectly still.
On startup/shutdown there was none of the wild shaking you see on the
912.
Once back on the ground I was reliably informed what a wonderful
little aircraft it was by a passing spectator. He spent some time
extolling the virtues of its handling, quietness etc etc. "By the
way, I'm Bob Coles, Chief Test Pilot for the CAA", enough said!
(Hope this doesn't inflate the antipodean's ego too much :-))
Please bear in mind that I have very little experience, but in my eyes
this little egnine could be a winner.
Cheers
Carl Reynaud #159
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