You can drive the alternator with a propeller just like the
old generator, it just makes power with less drag. I'd use
a self-exciting alternator that would not need to battery,
that would make it fully redundant. A standard automotive
alternator requires a battery to energize the rotor, the
aircraft types used by Beech, have small magnets and will
build a current as soon as they begin rotation and will have
DC output even with the battery turned off.

Not all aircraft manufacturers use such self-exciting
alternators because they cost a little more.



--
James H. Macklin
ATP,CFI,A&P

--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.
some support
http://www.usdoj.gov/olc/secondamendment2.htm
See http://www.fija.org/ more about your rights and duties.


"ET" wrote in message
...
| "Jim Macklin" wrote
in news:l%
| Tuf.40406$QW2.18045@dukeread08:
|
| See an aircraft mechanic who will ...
| install a legal anti-collision light (LED strobe uses
the
| least power)
| fabricate a proper battery box for a battery,
| perhaps install a voltmeter,
| fabricate an electrical bus, circuit breaker and switch,
| perhaps an external power connection for charging,
| do the weight and balance and update the paperwork and
| aircraft logs.
|
| The airplane may have had an external wind-driven
generator
| originally, you could restore that with a modern
alternator
| at the cost of a 1 or 2 mph.
|
|
|
|
| But with a "modern alternator" you now have an engine
driven electrical
| system, and all of the requirements that go along with
it...
| (transponder within mode c veil).
|
| I would do the battery thing and/or investigate the wind
generator.
|
| --
| -- ET :-)
|
| "A common mistake people make when trying to design
something
| completely foolproof is to underestimate the ingenuity of
complete
| fools."---- Douglas Adams