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How fast does a jumbo jet travel through the air?
A typical commercial passenger jet flies at a speed of about 400 – 500 knots which is around 460 – 575 mph when cruising at about 36,000ft. This is about Mach 0.75 – 0.85 or in other words, about 75-85% of the speed of sound.
How fast does a 747 have to fly to stay in the air?
A 747 will “take off” at around 180mph, this will depend on conditions such as weight, air temperature etc. a 747 will stay in the air at 50ft at 180mph give or take, but as altitude increases the speed for lift to overcome gravity will increase.
Why 747 has a hump?
Boeing decided to raise the cockpit above the nose cone, and — in order to maximize the planes aerodynamic efficiency — the hump was born. Later versions of the 747 would extend the hump further back on the plane, creating more room for premium cabin seats in the upper deck.
What is the fastest plane ever made?
Lockheed SR-71 Blackbird
The Lockheed SR-71 Blackbird is the fastest jet aircraft in the world, reaching speeds of Mach 3.3–that’s more than 3,500 kph (2,100 mph) and almost four times as fast as the average cruising speed of a commercial airliner. Key elements of the SR-71’s design made this possible.
What’s the average speed of a jet stream?
If you are fascinated with the speed, then bear in mind that sometimes in winter, jet streams can give tail winds of over 200 knots. Normally at cruise, the speed is closer to mach .85 / 500 knots true airspeed, which is around 925 km/h or 575 mph).
What is the take off speed of a Boeing 747?
A fully loaded Boeing 747 ‘Jumbo Jet’ on a normal long haul flight would take off at a speed of around 160 knots which is 184 mph. The calculated take-off speeds vary depending on environmental conditions, runway length and weight. What speed does a Boeing 747 land at?
How fast does a plane have to be to take off from the ground?
If an aircraft has a take off speed of 140 mph, but has a 20 mph headwind, the aircraft will only need to achieve a 120 mph ground speed before it is able to take off. Conversely, if an aircraft has a 20 mph tail wind, it would need to achieve a 160 mph ground speed in order to lift off the ground.
Why does an airplane have an airspeed of 20 mph?
Airspeed has a few different variations. If an aircraft is sat still on the runway and has a 20 mph headwind, the aircraft already has an airspeed of 20 mph, despite the fact it isn’t actually moving. This is because airspeed is a measure of the speed of the air over the wing.