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Mike Sowsun
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I doubt 270 mph has been exceeded for an airliner, but it is possible depending on the aircraft.

The worst case scenario for an airliner would be a max weight takeoff followed by an immediate flap less landing.

The B747-800 has a max takeoff weight over 900,000 lbs. If one had to had to do a flap-less emergency landing shortly after a max weight takeoff (and unable to dump fuel), it would use Vref 30+40 (about 226 knots) for an approach speed, and that would be about 260 mph.

I don't have access to all the B747 speeds, but this chart does give an idea of the speeds needed for a flaps up landing.

Source: B-747-400 Flight Crew Training manual enter image description here

I doubt 270 mph has been exceeded but it is possible depending on the aircraft.

The worst case scenario for an airliner would be a max weight takeoff followed by an immediate flap less landing.

The B747-800 has a max takeoff weight over 900,000 lbs. If one had to had to do a flap-less emergency landing shortly after a max weight takeoff (and unable to dump fuel), it would use Vref 30+40 (about 226 knots) for an approach speed, and that would be about 260 mph.

I don't have access to all the B747 speeds, but this chart does give an idea of the speeds needed for a flaps up landing.

Source: B-747-400 Flight Crew Training manual enter image description here

I doubt 270 mph has been exceeded for an airliner, but it is possible depending on the aircraft.

The worst case scenario would be a max weight takeoff followed by an immediate flap less landing.

The B747-800 has a max takeoff weight over 900,000 lbs. If one had to had to do a flap-less emergency landing shortly after a max weight takeoff (and unable to dump fuel), it would use Vref 30+40 (about 226 knots) for an approach speed, and that would be about 260 mph.

I don't have access to all the B747 speeds, but this chart does give an idea of the speeds needed for a flaps up landing.

Source: B-747-400 Flight Crew Training manual enter image description here

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Mike Sowsun
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I doubt 270 mph has been exceeded but it is possible depending on the aircraft.

The worst case scenario for an airliner would be a max weight takeoff followed by an immediate flap less landing.

The B747-800 has a max takeoff weight over 900,000 lbs. If one had to had to do a flap-less emergency landing shortly after a max weight takeoff (and unable to dump fuel), it would use Vref 30+40 (about 226 knots) for an approach speed, and that would be about 260 mph.

I don't have access to all the B747 speeds, but this chart does give an idea of the speeds needed for a flaps up landing.

Source: B-747-400 Flight Crew Training manual enter image description here

I doubt 270 mph has been exceeded but it is possible depending on the aircraft.

The worst case scenario would be a max weight takeoff followed by an immediate flap less landing.

The B747-800 has a max takeoff weight over 900,000 lbs. If one had to had to do a flap-less emergency landing shortly after a max weight takeoff (and unable to dump fuel), it would use Vref 30+40 (about 226 knots) for an approach speed, and that would be about 260 mph.

I don't have access to all the B747 speeds, but this chart does give an idea of the speeds needed for a flaps up landing.

Source: B-747-400 Flight Crew Training manual enter image description here

I doubt 270 mph has been exceeded but it is possible depending on the aircraft.

The worst case scenario for an airliner would be a max weight takeoff followed by an immediate flap less landing.

The B747-800 has a max takeoff weight over 900,000 lbs. If one had to had to do a flap-less emergency landing shortly after a max weight takeoff (and unable to dump fuel), it would use Vref 30+40 (about 226 knots) for an approach speed, and that would be about 260 mph.

I don't have access to all the B747 speeds, but this chart does give an idea of the speeds needed for a flaps up landing.

Source: B-747-400 Flight Crew Training manual enter image description here

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Mike Sowsun
  • 37.9k
  • 4
  • 123
  • 157

I doubt 270 mph has been exceeded but it is possible depending on the aircraft.

The worst case scenario would be a max weight takeoff followed by an immediate flap less landing.

The B747-800 has a max takeoff weight over 900,000 lbs. If one had to had to do a flap-less emergency landing shortly after a max weight takeoff (and unable to dump fuel), it would use Vref 30+40 (about 226 knots) for an approach speed, and that would be about 260 mph.

I don't have access to all the B747 speeds, but this chart does give an idea of the speeds needed for a flaps up landing.

Source: B-747-400 Flight Crew Training manual enter image description here