Thanks for the info guys. I am going to be flying with United Airlines so I will give them a call tonite and see what they say. Main things I would bring would be:
Vehicle and its electronics
Charger
Battery packs ( maybe 3 max )
Radio and its batteries
Discharge tray
A few tools and maybe a spare part
I think that will be about it.
Slobbatech: Strange that you couldn't take a power supply but could take a charger on the plane?
I just don't want any problems going through the airline. I also have to see about space as I have to bring a camcorder and digital camera with.