It was powered by a single 150 horsepower ( 110 kW ) Lycoming O - 320 piston engine and had a fixed nosewheel undercarriage .
The Challenger was a low - winged cantilever four - seat monoplane with an all - metal construction .
Challenger was powered by a single 150 horsepower ( 110 kW ) Lycoming O - 320 piston engine and had a fixed nosewheel undercarriage .
The Challenger was a low - winged cantilever four - seat monoplane with an all - metal construction .