Fixed-wing aircraft
Fixed-wing aircraft is a term used to refer to monoplanes, biplanes and triplanes...

Glider
Gliders are un-powered heavier-than-air aircraft...

Helicopter
Since around 400 BC the Chinese had a flying top that was used as...

IFR
Instrument flight rules (IFR) allow an aircraft to be flown in weather conditions that...

Internal Combustion Engine
An internal combustion engine is an engine that is powered by the expansion of...

Jet Engine
A jet engine is a type of air-breathing turbine engine, often used on aircraft...

Lift (force)
Lift consists of the sum of all the aerodynamic forces normal to the...

Mach Number
Mach number (Ma) is defined as a ratio of speed to the...

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