Lockheed AH-56A Cheyenne-WBT V. 27

Covering one of the most radical and highly developed helicopters ever produced, this volume describes the evolution and eventual failures of the AH-56A Cheyenne. Contains detailed accounts of structural breakup in wind tunnels, factory tech photos and cutaway views, propulsion and weapons system details, rigid rotor explanation, and more. The photos in this edition are black and white.