Georgians arose from an ancient kingdom on the coast of the Black Sea and they are significant.
The cyclogyro , or cyclocopter , is an aircraft design that uses cyclorotors as the principal source of lift , propulsion , and control .. aircraft. aircraft. They are capable of vertical take off and landing and hovering performance like a helicopter , without the same disadvantages such as limited forward speed , very high noise and vibration levels , limited flight altitude etc. .. vertical take off and landing. VTOL. helicopter. helicopter. The biggest hope of Cyclocopter developers , which remains unrealised in any flying prototypes , is to achieve higher efficiency in terms of lift per engine horsepower -LRB- aka Power Loading -RRB- which would translate into higher lifting capability and longer flight range .. Although a number of cyclogyros were built in the 1930s , none were known to have successfully flown until 2011 .. The cyclogyro should not be mistaken for Flettner airplanes , the aerodynamically different aircraft designs using cylindrical wings which attempted to harness the Magnus effect .. aircraft. aircraft. Magnus effect. Magnus effect