Kawasaki KH-4
Light Utility Helicopter
The Kawasaki KH-4 is a light single-engine four-seat utility helicopter produced by the Japanese manufacturer Kawasaki Heavy Industries.
The Kawasaki KH-4 is a four seat development of the three-seat Bell 47G-3B. The main changes include the enlarged cabin, the new supercharged engine, a new cockpit instrument layout, a modified control system and a larger fuel capacity.
| Crew | 1-2 | |
| Passengers | 2-3 | |
| Propulsion | 1 Piston Engine | |
| Engine Model | Lycoming TVO-435-B1A | |
| Engine Power | 201 kW | 270 hp |
| max. Cruise Speed | 141 km/h | 76 kts 87 mph |
| max. Speed (vne) | 169 km/h | 91 kts 105 mph |
| Service Ceiling | 5.640 m | 18.504 ft |
| Range | 400 km | 216 NM 249 mi. |
| Empty Weight | 816 kg | 1.799 lbs |
| max. Takeoff Weight | 1.293 kg | 2.851 lbs |
| Rotor Blades (main/tail) | 2 / 2 | |
| Main Rotor Diameter | 11,00 m | 36 ft 1 in |
| Tail Rotor Diameter | 1,00 m | 3 ft 3 in |
| Rotor Disc Area | 100,6 m² | 1083 ft² |
| Length (Fuselage) | 9,93 m | 32 ft 7 in |
| Length | 13,30 m | 43 ft 8 in |
| Height | 2,84 m | 9 ft 4 in |
| First Flight | 1962 | |
| Production Status | out of production | |
| Production Range | 1962-1975 | |
| Total Production | 338 | |
| Developed from | Bell 47G-3B | |
| ICAO Code | KH4 | |
| Data for (Version) | Kawasaki KH-4 | |
| [Photo-ID: 6447] © Karsten Palt 2013-02-09 | |
![]() | Kawasaki KH-4 Royal Thai Air Force (RTAF) |
| Royal Thai Air Force Museum [Bangkok] | |


