14 May (Soviet Union, USSR ) within release History of Russian Aircraft - Helicopters goes into circulation Stamp Mil "Mi-10k" (1965) face value 15 Russian kopek
Stamp Mil "Mi-10k" (1965) in catalogues | |
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Colnect codes: | Col: SU 1980.05.14-01a |
Stamp is horizontal format.
Plate error: Black bar behind tyre (pos. 17).Also in the issue History of Russian Aircraft - Helicopters:
Stamp Mil "Mi-10k" (1965) it reflects the thematic directions:
An aircraft (pl. aircraft) is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or the dynamic lift of an airfoil, or, in a few cases, direct downward thrust from its engines. Common examples of aircraft include airplanes, rotorcraft (including helicopters), airships (including blimps), gliders, paramotors, and hot air balloons.Part 1 (Definitions and Abbreviations) of Subchapter A of Chapter I of Title 14 of the U. S. Code of Federal Regulations states that aircraft "means a device that is used or intended to be used for flight in the air."
A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward and laterally. These attributes allow helicopters to be used in congested or isolated areas where fixed-wing aircraft and many forms of short take-off and landing (STOL) or short take-off and vertical landing (STOVL) aircraft cannot perform without a runway.