In the 1970s, on the resolution of the government of the USSR, was begun the development of the portable helicopter Ka-56 "wasp". This model was created for the use by intelligence officers, who are located on the task for the rapid change of the place for dislocation. Model was completely portable and in the folded configuration it decreased into the trunk.
In 1971 the design bureau Kkamov was ordered prepare new super-lightweight helicopters for the special service. Thus appeared mini- helicopter - Ka-56. The following was special requirement: it had to be transported in the cylindrical container with a diameter of 500 mm. The fact is that the Navy of the USSR they wanted to have the capability to derive helicopter from the submarine through the torpedo pipe. And one additional important requirement - complete independence of the prolonged operation of helicopter far from the bases. These requirements immediately determined the concept of a constructive solution - helicopter must be well-made with a minimum quantity of detached elements.
Another most important requirement consisted in the fact that the helicopter must be well-made and be gathered into the flying readiness during 15 minutes during the unpacking from the container. Engines were 40 hp with the air cooling, which worked on the automobile fuel. Near the coast the container with the helicopter was detonated from the submarine outside through the torpedo tube (by compressed air) and surfaced (container airtight). By track, thus, outside [vyplyval] pilot. It pushed out container to the coast. Fourth of hour are passed, and "wasp" to flight is ready. After rising into the sky, agent in 25 minutes flew away up to the distance of 50 km from the coast. In view of ease and compactness of container, its part it was possible to take with itself, and on the arrival to again accumulate in them "wasp". "The agent to work is ready" after this.
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