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The Radian Pro is a similar to the ASW 28 in that it is a 2m span electric glider made from tough EP foam. The main difference is that the Radian Pro has flaps which can be used to increase lift at low speeds and to slow the model down for landing.
The motor is used to climb and is then switched off and the aircraft then becomes a glider. Running time of the battery is around 10 minutes, but much longer flights can be had if there is good thermal lift around.
It comes virtually ready built and is an easy plane to fly, although ideally with an instructor at first.