Does anyone know where I can get working American catenary for my Acela train set?
check walther's reference catalog . However the only functional catenary I remember seeing is made by Maerklin and is not in an American style of catenary . Sorry J2.
eddie-
I found many sources of catenary parts based on various prototype practices. Do a search yourself and locate what best meets your needs. Incidentally, while there is a lot of Marklin catenary out there, there's lots of other manufacturers' goods, too.
-- D