| MD 500 Defender | |
|---|---|
 Hughes 530MG, on display at PROLOG '85 | |
| General information | |
| Type | Light multi-role military helicopter |
| National origin | United States |
| Manufacturer | Hughes Helicopters McDonnell Douglas Helicopter Systems MD Helicopters |
| Status | In service |
| Primary users | Republic of Korea Army |
| Number built | 471 |
| History | |
| Manufactured | 1976–present |
| First flight | 1976 |
| 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.