Kawasaki KH-4

Kawasaki KH-4 is a Japanese light multi-purpose helicopter developed by Kawasaki Heavy Industries in 1962.

The design of the helicopter model Kawasaki KH-4 began by Japanese aircraft manufacturers in the early 60s of the last century, while, as a starting base, aircraft manufacturers used the model of the American aircraft Bell 47, which has undergone only several changes in the structural and technical parts, but the general and Generally, almost completely preserved.

Initially, helicopters of the Kawasaki KH-4 model were supposed to be adopted by the Japanese Air Force, however, ultimately, these aircraft also found their application in the civilian aviation industry, which led to their rather large popularity, as evidenced by the fact that over the entire production period 211 aircraft of this model were built.

The Kawasaki KH-4 helicopter underwent its first flight test in 1962, and since this aircraft was already successfully tested, the current aircraft was also very successful, and therefore, after a few months, the model was in serial production.

In the military sphere of its application, the helicopter was used as a patrol and observation air vehicle. Due to its high maneuverability, this aircraft was ideally suited for air observation, which was facilitated by a rather large maximum flight altitude, and later it began to be used only for these purposes. As for civilian use, here the helicopter was mainly used for the same tasks, however, its use was further expanded to transport people and transport small, small-sized cargoes.

The cabin of the Kawasaki KH-4 aircraft can accommodate four people, including one crew member and three passengers (military personnel). In cases where the helicopter was supposed to be used for the transportation of goods, this aircraft could carry only two passengers on board, since the rear platform of the cockpit was used to accommodate the cargo being transported.

Due to the high popularity of helicopters of the Kawasaki KH-4 model, these aircraft partially continue to operate to this day, however, we are not talking about hundreds of aircraft, but only about a few units.

The Kawasaki KH-4 helicopter is equipped with a power plant consisting of one piston six-cylinder aircraft engine of the brand Lycoming TVO-435-B1A, with a thrust of 270 hp, which in turn allows the aircraft to cover distances of up to 400 kilometers at a cruising flight speed of 140 km \ h.


  • Crew: 1 person;
  • Capacity: 3 people;
  • Length: 9.93 m.;
  • Height: 2.84 m.;
  • The diameter of the rotor: 11.32 m.;
  • Empty helicopter mass: 816 kg .;
  • Maximum take-off weight: 1300 kg .;
  • Cruising speed: 140 km \ h.;
  • Maximum flight speed: 170 km \ h.;
  • Maximum flight range: 400 km .;
  • Maximum flight height: 5640 m.;
  • Powerplant: Lycoming TVO-435-B1A;
  • Power: 270 hp
Graduated from Embry-Riddle Aviation University with a master's degree in aviation science. He began his career as an aviation researcher in local periodicals. Has a pilot license. Now are the author and developer of the Plane Worlds.