McDonnell Douglas MD 500 Defender

MD 500 Defender
Hughes 530MG, on display at PROLOG '85
Role	Light multi-role military helicopter Type of aircraft
National origin	United States
Manufacturer	Hughes Helicopters McDonnell Douglas Helicopter Systems MD Helicopters
First flight	1976
Status	In service
Primary users	Republic of Korea Army Iraqi Air Force Israeli Air Force Philippine Air Force
Produced	1976–present
Number built	471
Developed from	Hughes OH-6 Cayuse MD Helicopters MD 500

The McDonnell Douglas Helicopter Systems MD 500 Defender is a light multi-role military helicopter based on the MD 500 light utility helicopter and OH-6 Cayuse Light Observation Helicopter.