Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Aero Design DG-1 (registered N10E) is an American racing aircraft designed by David Garber in an attempt to break the world airspeed record for a piston-engined aircraft. It is a single-seat aircraft with two Mazda RX-3 engines installed, one driving a tractor propellor, the other driving a pusher. The fuselage is bullet-shaped and highly streamlined and features a mid-wing and cruciform tail. It first flew on 25 July 1977.