The RealAir package uses "Bellanca" as the aircraft_type, but as the rudder pedals show "ACA" I've changed it to "Champion", which it recognises, so with that and aircraft_model=BL8 I get "Champion Decathlon" in ATC. "Aeronca" works as a type, and aircraft_model=7AC gives "Champion", so "Aeronca Champion" for the CR-1 Aeronca. I'd just like the Citabria and Scout as well.