Piston engines are usually Steel, but there are some with major parts of aluminum alloy. Jet engines are made of steel, aluminum and titanium alloys. Each of these type metals have a variety of alloys that have different properties, such as strength, heat resistance and fatigue strength. A design engineer will select the alloy that provides him the properties that he needs for the application.
They are made of aluminium because it is a light metal
Not in a typical airplane engine, however if you had a specially made modified engine, than it is feasible.
Wood and fabric.
The gasoline engine.
Cardboard and/or metal.
The Wright brothers made their airplane fromtin and metal.
The metal that is commonly used in a petrol engine is mainly made of aluminum. Some are also made of cast iron.
Metal
Most of the metal aircraft ever made have been Aluminium for it lightness adn the ease with which it can be moulded into different (aircraft) shapes
Orville and Wilbur Wright. They added an engine to there Model T???????? aircraft.
The Internal combustion engine
The Internal combustion engine