"ET" wrote in message
...

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).


Not if the "modern alternator" is used in a restoration of the external
wind-driven generator. But that wouldn't be a restoration, that would be a
conversion.