Planes Without Pilots: Advances in Unmanned Flight
Aero Publishers, 1991. First edition. Paperback. First edition. Paperback. Fine condition. 81 pgs. With diagrams and color and black and white photos.
Aero Publishers, 1991. First edition. Paperback. First edition. Paperback. Fine condition. 81 pgs. With diagrams and color and black and white photos.