Interesting Facts About Airplanes

Many different styles and arrangements of wings have and are used on heavier-than-air aircraft, and some lighter than air aircraft also have wings. The common wing configuration types have included monoplanes which has one wing each side, biplane which have 4 wings.
Wings also vary greatly in planform which is their shape viewed from above . Wings can be swept backwards or be delta wings and can have many other shapes.
• Aircraft engine
An aircraft engine is a power source for an aircraft. Aircraft engines are almost always either lightweight piston engines or gas turbines. Powered aircraft have one or more engines.