10 September (Russia ) within release History of the First World War goes into circulation Stamp The Sikorsky S-22 Ilya Muromets Heavy Bomber face value 21 Russian ruble
Stamp The Sikorsky S-22 Ilya Muromets Heavy Bomber in catalogues | |
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Colnect codes: | Col:RU NEW 1998 |
Stamp is horizontal format.
Also in the issue History of the First World War:
Stamp The Sikorsky S-22 Ilya Muromets Heavy Bomber it reflects the thematic directions:
An aircraft is a machine that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines. The human activity that surrounds aircraft is called aviation. Crewed aircraft are flown by an onboard pilot, but unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers. Aircraft may be classified by different criteria, such as lift type, aircraft propulsion, usage and others.