I just looked at the Discus, it does not have air brakes or retracts? The Ventus and flying dream have the air brakes and retracts.

http://www.nitroplanes.com/56chas26arfr.html

http://www.nitroplanes.com/ventus-ar...n-2600-mm.html

http://www.nitroplanes.com/dics2arfrare.html



Comparing the Discus to my Ventus, You can set it up with 3 channels as Opjose said. It is better and some times a little bit easier to setup with a radio with more channels.

The servos I used were Airtronics 94091 (1) for each aileron, HS-82 for rudder, elevator, retract and glider tow release and I used HS-56 for the air brakes. So I used 7 servos and 8 channels to get it all to work. Plus you add in the servo extension, you end up with a lot of wires in the fuse.

A radio with more features will serve you well if you are going to be flying for a while. Radios are like cars and trucks. Every one has their favorites. I fly an RD8000. It is an 8 channel radio with a lot of features.

http://www.hobbypeople.net/gallery/751700.asp

The servos I used.

http://www.hobbypeople.net/gallery/474125.asp

http://www.hobbypeople.net/gallery/759550.asp



Dru.