Differs in every aircraft but mostly around 160kias.
The Harrier can take off vertically.
speeds depend on the weather condition and how long the runway is but usally a 747 takes off at 150-154 knots.
An Airbus 320 is taking off at arround 120 Knots to 160 Knots depending on weight, runway, runway condition, MET conditions. The speed above is equal to most commercial aircrafts nowadays. Cristian from Argentina
When a jet plane accelerates on the runway, the engines convert chemical energy from fuel into kinetic energy of motion. This kinetic energy increases as the plane gains speed, allowing it to overcome inertia and take off into the air.
280kmph.
to take off the the aircraft which is operated at a specific speed on the runway
The required runway length for a Westwind jet to take off into the wind depends on several factors, including the aircraft's weight, the wind speed, and environmental conditions. Typically, a Westwind jet requires a runway length of around 4,000 to 5,000 feet for takeoff, but this can vary based on the specific circumstances. A headwind can reduce the required runway length, allowing for a shorter takeoff distance. Always refer to the aircraft's pilot operating handbook for precise requirements.
The departure actually take off when it taxi's the runway so you have enough speed to lift off.
A harrier is a jump jet- it can take off straight up and land straight down or make a really short take off or landing on a runway. It cant hold a lot of fuel so it can fly for too long.
35 knots
A standard 737 will take off (rotate) at approximatly 140 knots. Take off speed depends on wind speed temperature and weight etc
A Scram jet is a jet which needs supersonic propulsion to take off. It is taken into air by another larger aircraft and is released in supersonic speed.