What is the rotation speed of a b747?
What is the rotation speed of a b747? A typical takeoff or rotation speed of a Boeing 747-400 model—which was the biggest selling of the 747 variants—is around 160 knots. The Boeing 747-8 Intercontinental, the most recent 747 passenger variant, has a typical cruise speed of Mach 0.86 while flying at an altitude of 35,000 feet, according to Boeing.
Why do pilots prefer Boeing?
In short, there's less electronic mediation between the pilot and the machinery in a Boeing aircraft. Some pilots think this gives them a better “feel” in flying the plane, while others prefer the video-gamelike quality of the electronic interface.
Why did Boeing stop 747?
Like the even bigger Airbus A380 (in the foreground), the 747 no longer meets the economic requirements of airlines that prefer long-haul, dual-engine aircraft such as the A350 or the Boeing 777 and 787. In the past year, there were only 20 or so outstanding orders for the 747, all of them for freight carriers.
Is 747 faster than A380?
Speed: 747s can fly faster than the A380s. The maximum cruise speed of an A380 is Mach 0.89 (89% of the speed of sound in air) while the two newest variants of the 747 (“-400” and “-8”) can cruise at a speed of Mach 0.855.
What is the rotation speed of a Boeing 737?
Boeing 737 at 100,000 lb, rotation speed is 150 mph / 130 KIAS. Airbus A320 at 155,000 lb, rotation speed is 170 mph / 150 KIAS. Boeing 747 at 800,000 lb, rotation speed is 180 mph / 155 KIAS.
Why is 747 retired?
Most airlines had retired their 747 fleets in favor of a new generation of long-haul aircraft, which carry fewer people than the 450-passenger giant, and, with just two engines versus the 747's four, burn less fuel.
Can a 747 fly on one engine?
The Boeing 747 is a four-engine wide-body jet airliner that has been in service since 1970. It is one of the most recognizable and iconic aircraft in the world, and has earned the nickname “Queen of the Skies”. The Boeing 747 can fly on one engine only, but it is not recommended or desirable to do so.
How fast does a plane go before takeoff?
The speeds needed for takeoff are relative to the motion of the air (indicated airspeed). A headwind will reduce the ground speed needed for takeoff, as there is a greater flow of air over the wings. Typical takeoff air speeds for jetliners are in the range of 240–285 km/h (130–154 kn; 149–177 mph).
Why does 747 have a hump?
Because of aerodynamics, the cockpit level had to rise and slope back down to the main fuselage, giving us the iconic hump.
What is the fastest plane in the world?
The North American X-15 may be the fastest plane in the world, with speeds at 4,520 mph and Mach 5.93. It's an experimental aircraft used and powered by NASA and USAF.
Could a 747 go supersonic?
The wings of a 747 are nowhere near strong enough to mount an engine capable of supersonic flight. Generally, engines used in aircraft like the Concorde or the F-22 are skinny and long. They also weigh quite a fair amount, further requiring a complete overhaul of the way the engines would be supported.
What speed does a 747 cruise at?
On average, the typical cruising speed of a large commercial aircraft, like a Boeing 747, is somewhere between 475 and 500 knots (roughly 575 mph). So what is the cruising speed of a 747? Depending on passenger load, the average cruise speed of a 747 is 490 nautical miles or Mach 0.85.
Why do pilots love 747?
Many long-haul planes have pilot bunks. On some airplanes you have to pass through the passenger cabin to reach the bunks or lavatories; on others, like the 747, you need never leave the cockpit area and can move freely between the bunk and the bathroom in your pajamas.