Battery, Generator, Alternator...
Hello Guys,
Recently I have been flying the AT-3 R100. It has a Bombardier Rotax 912S engine as some of the very light aircraft have, like the Tecnam and the DV20 Katana.
My question is "WHY the AT3 has both a generator AND an alternator?" Why not just an alternator?
Why do I need to switch ON the alternator before engine start?
Tip: The engine can start with only the BAT ON.
I tried to find the answer in the POH, in forums, in the Rotax website and others but with no luck.
Any help will be greatly appreciated!