[citation needed] The Bumble Bee is a simple and lightweight design that can be built to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 254 lb (115 kg).
[2] The aircraft consists of an open frame based on a keel tube, which supports the nose wheel at the front and the tail at the back.
The powerplant specified is a 40 hp (30 kW), twin-cylinder, two-stroke, air-cooled, single ignition Rotax 447 mounted in pusher configuration.
The landing gear is of tricycle configuration, uses plastic-spoked wheels to reduce weight and does not include suspension.
A horizontal tailplane maintains the aircraft pitch angle in flight and a large fin and rudder is provided.