18 December (Tanzania ) within release 75th Ann. Of the 1st Flight ot Wright Brothers goes into circulation Souvenir Sheet 75th Ann. Of the 1st Flight ot Wright Brothers face value 8.50 Tanzanian shilling
Souvenir Sheet 75th Ann. Of the 1st Flight ot Wright Brothers in catalogues | |
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Michel: | Mi:TZ BL16 |
Souvenir Sheet is horizontal format.
Also in the issue 75th Ann. Of the 1st Flight ot Wright Brothers:
Souvenir Sheet 75th Ann. Of the 1st Flight ot Wright Brothers 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.