Developed from the three-seat Bell 47G-3B, the KH-4 is a four-seat general purpose helicopter powered by a 201kW Lycoming TVO-435-B1A air-cooled engine. First flight Summer 1960. Apart from changes to cabin to accommodate extra passenger, and new supercharged engine, the KH-4 had a new instrument layout, modified control system and larger fuel capacity. A total of 338 were built for civil and military customers between 1960 and 1975. 
List of Operators of KH-4 |
Global Distribution of KH-4 |
|
Construction Numbers |
| C/N | Built as | Year | History | |
|---|---|---|---|---|
| 2010 | 1963 |  JA7367,VH-KIU | ||
| 2015 |  JA7375 | |||
| 2065 | JA7457 | |||
| 2101 | JA7458 | |||
| 2192 | 1971 |  1115,VH-JWB |
