Aerodynamics!
it means to pass through
THERE is no such thing as steamlined but there is streamlined it is because to reduce resistance of the air and water to use less energy e.g fuel
To run fast through thick vegetation.
movementThey
A sleek,steamlined bird of prey with long pointed wings. Most have a tear stripe on face.
The plural of aircraft is aircraft.One aircraft, two aircraft, ten aircraft.
An aircraft attitude is the orientation of an aircraft with respect to the horizon.
If it is a military aircraft, a light aircraft or a commercial aircraft yes they can kill a person or more.
The perfect aircraft to use as a 'Utility Aircraft', would be any type of the Hercules Range of Aircraft.
The plural of aircraft is aircraft. Much like how the plural of deer is deer. (Singular: That is such a beautiful aircraft / Plural: Look at all of those aircraft)
Many websites provide listings of aircraft for sale. Examples include Find Aircraft, Aircraft, Aircraft Dealer, Aircraft Dealers, and Aviation Dealer Index.