MD 500 Defender

The MD 500 is a light, multi-purpose helicopter that has been adapted for observation, scout, special operations, anti-armor and anti-submarine warfare (ASW) roles. It is based on the earlier OH-6A Cayuse and its commercial derivative the Hughes 500 (see separate database entry). The Defender is an improved military variant of the Model 500 with a more powerful engine, five-blade main rotor, T-tail and heavier armament. It became the basis for all subsequent McDonnell Douglas...