Hand-launch rubber-band flier. A pocket-size flier for a park lawn, a backyard, or a hallway: wind the propeller, launch it by hand, and watch the rubber-band motor pull it into a short glide. It also works as a desk or shelf model, and as a simple build project for anyone curious how a rubber-band motor drives flight.

Wind, hold, launch. A twisted rubber band inside the fuselage drives the nose propeller, which spins freely once released. Wind the propeller, hold the two wings, and hand-launch it level. The tail fin and horizontal stabilizer keep the glide straight after the motor unwinds.

Nine parts, no glue tricks. Nine printed pieces make the whole plane: the fuselage, upper wing, lower wing, propeller, tail, and four struts named strut_y_35, strut_y-35, strut_y_60 and strut_y-60. Each strut plugs into a matching seat on both wings, so the pair of wings sits parallel around the fuselage.