re the above comment on the size of electric motors.....I just tossed a motor 5 1/2 inches in diameter and 11 inches long rated at 10 hp at 24 volts........it was a starter motor modified for use with a gatling gun.......so they can be small.....
Transmissions.....think chevy cogged belt drive....will give reduction when the proper pulleys are chosen, also the timing belts for the small 4 banger chevies.....they are strong enough to use with a 225 hp six cylinder buick V6 modified for aircraft use...
mufflers...ain't difficult to make your own, think silencer for 50 cal machine gun....as designed and invented by Hiram Percy Maxim....can be made from stock stainless pipe, and bronze wool packing...put a water jacket on the outside for additional cooling...rig it to a bilge pump for water when the air cooled engine is running...youse guys gott move to china or thailand to see some real innovations..
Wakan Tanka Kici Un
..a bad day sailing is a heckuva lot better than the best day at work.....
Fighting Illegal immigration since 1492....
Live your life so that whenever you lose, you're ahead."
"If you live life right, death is a joke as far as fear is concerned."