This may not be the one being referred to but, the insignia of a propeller with gold wings (like a bird not a plane) signified the 1940's Army Air Corps, the one used now differs slightly. The collar insiginia for the old Army Air Corps was a small set of wings with a vertical propellor. The device was worn up until the US Air Force was created in 1947. It's not technically an award. You're describing the Branch of Service insignia for Army Aviation personnel. It symbolizes a person who holds an Aviation specialty.
It's called a propeller.
It is called a rotor, and it more closely resembles a wing than a propeller blade
A propeller is like a spinning wing. The airfoil shaped blades pull an airplane forward just as an airplane's wings lift it upward. The amount of thrust created by a propeller depends on how fast and at what angle its blades cut through the air. The propeller is generally powered by a combustion engine which fires pistons and turns the propeller.
An autogiro is an aircraft in which lift is provided by unpowered rotating wings and thrust is provided by a conventional propeller.
hoverboard, wings, a hat with a propeller, and a scooter-type thingy. (i've seen them all)
It is the main rotor of a helicopter that acts to lift and thrust the craft through the air. A link is provided below.
Yes. Propeller blades are much like the wings of an airplane. On a propeller the airfoil chord, twist and camber are change drastically from root to tip - more than on a wing.
Wings, the first Outstanding Picture, also won an Academy Award for Effects.
The propellers act as a thrusting force which drives the airplane forward. In addition to the wings and vertical and horizontal tail wings, this helps an airplane to become airborne and fly.
yes if its attached to a propeller/ rotor blades and or has wings for flight..
4.
They don't exactly flap their wings like birds, but they propel themselves through the air sometimes by a propeller, but mostly with jet engines attached under the wings.