I researched this on the Horizon website, and couldn't come up with anything positive.

The AR6100 is listed as a Blade heli receiver. My little Blade has one in it. I don't know if it will work on fixed wing. I'm guessing not, as the Rx listed for the DX7 is the AR8000. The AR500 doesn't come up on a search.

Some of the Spektrum small heli radio systems have very limited range, and that's something you have to be very careful about.