Check the listing for details. E-flite RC Airplane UMX Radian BNF Basic with AS3X and SAFE Select EFLU2950. Color: Yellow, Condition: New. Listed at 99.99 USD. NOW EVEN EASIER TO FLY The UMX™ Radian® ultra-micro motor glider became a class favorite by delivering a unique flying experience you simply can't get from any other model. Due to its traditional motor glider design, the Radian is inherently stable and easy to fly almost anywhere — indoors in gymnasiums and other suitable spaces, and outdoors in most yards, parks and sports fields. The exclusive Spektrum™ AS3X® technology of its installed electronics smooths out the effects of wind and turbulence to deliver a locked-in feel that makes it seem like you're flying a much larger airplane. E-flite® engineers upgraded this new version to include optional-use SAFE® Select technology, making the Radian even easier for more people to fly in more places. Plus,.