This is not correct. A park flyer receiver should not be used in a glider, as gliders are capable of the same flight distances as "regular" planes. In fact, many time gliders will be flown up to an altitude much MUCH higher than most planes are flown at, and the reduced range from a park flyer receiver could wind up with loss of control of the aircraft. In fact, if you've ever seen a glider get "stuck" in a thermal you will know just how high they can go. When this happens the gliders can easily be a "speck" in the sky when they finally come out of the thermal.

To answer the original question, yes you can move them from plane to plane. What n19tmare stated about some heat shrink on the antenna wires to protect them is good advice.

Ken