The rotax engines have an oldfashioned coil-fixed nagnets built-in type
type of generator. There is no field coil, not needed because of the
fixed magnets. There is no collector.So reliability is likely to be
better then a normal external generator. The weak point here is
probably the regulator/rectifier. The capacity of this built-in
generator is so small however, that i don't think it will fry the
battery, not while flying and other load is on. Worst case i can think
of is a shorted rectifier or regulator, which will blow the 60 A fuse
---From the Europa diagram. So we are still flying on the battery for some
time, but i wonder what will happen to the field coils, can they be
shorted without smoke or?
Who knows what is in that box?
Jos Okhuijsen
Ronald J. Parigoris wrote:
>
>Hey Guys
>
>I posed a question to Lockwood Aviation in FL a while back about using 2
>alternators and 2 batteries to keep fuel pumps running.
>
>He thought it was not necessary.
>
>He said that the alternator has some sort of seperate winding or redundency (?)
>to keep a fuel pump going in the event the battery and primary windings in
>alternator failed.
>
>Is this true or false?
>
>He said Rotax thought the problem through quite well?
>
>Ron Parigoris
>
>
>
>
|