ORIGINAL: hugger-4641
Hobbyzone(horizon hobby) does use the 72mh radio in some of the parkzone planes like the T-28, typhoon,stryker, and some others. You can use the 72mh stuff in the the hobbyzone planes, but you have to change the rx and the servos. I am in the process of doing this to one of my Super cubs so I can use my futaba radio and buddy box with it. I'll post how it works out when I get it flying.
I'm talking about the inexpensive beginner planes, like the Firebirds, Aerobirds, Super Cub, etc.
Yes, the more expensive planes for advanced pilots have 72MHz radios, but advanced pilots don't need trainer box capabilities.