The Challenger is a four-part wing-panel glider that gives pilots modular control over handling and performance. Split into two center (main) panels and two detachable wing-tips, the Challenger lets you tune roll response, lift distribution and tip behavior by choosing the appropriate joiner angles – faster setup,
fewer compromises, better flying.

NAN Models Main  joiners available angles: 1°, 1.5°, 2°
NAN Models Wing tips joiners available angles: 6°, 7°, 9°.
Servorahmen wing tips joiner set, available angles: 5°, 6°, 7°, 8°