Boeing aircraft like 747, 777 and 787, and Airbus birds like A300; A330; and A350 are classified into the heavy aircraft category with a maximum take-off weight exceeding 300,000 pounds. Hence, these large aircraft leave strong wake turbulence.
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The Boeing 757 is a mid-size, narrow-body twin-engine jet airliner that was designed and built by Boeing. The B753 is member of the B757 family of aircraft. Note: Common practice is to consider B757 as 'HEAVY' (H) for the purpose of assessing wake turbulence generated by this aircraft.
The Boeing 737-800 is one of the most widely used narrowbody aircraft and competes with the Airbus A320. The empty weight of the Boeing 737-800 is 91,300 lbs, and its maximum takeoff weight is 172,500 lbs.
Pan-Pan, short for “possible assistance needed,” is used to communicate an urgent, but not emergency, situation over VHF radio, in the case of aviation, to air traffic control. Examples could include a recreational pilot getting lost, or perhaps needing to climb to a higher altitude to sort a problem out.
The Boeing 787-8 Dreamliner is a long range, mid-sized, wide-body, twin-engine jet airliner. The B788 is a member of the B787 series of aircraft. The 787 is the world's first airliner using composite materials for most of its construction (approx. 50 percent).
The Boeing 787 Dreamliner (Fig. 1.5A) is a family of long-range, midsize wide-body, twin-engine jet airliners that can seat 242–335 passengers in a typical three-class seating configuration.
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Ecologically, and compared to previous generation wide-body aircraft, the Dreamliner has avoided more than 85 billion pounds of carbon emissions, achieved 20-25% greater fuel efficiency, realized 20-45% more cargo revenue capacity, and produced a 60% smaller airport noise footprint.
Smoother Ride Technology: Sensors on the 787 sense and dampen turbulence for a more comfortable ride and less motion sickness. Large overhead bins: There's space for your carry-on near your seat. Better seating options: The 787 offers the latest in seat comfort and technology.
A pilot's perspectiveSmith added that the 757 could get off the ground at a lower speed and use less runway than the 737, making it easier to operate for pilots flying out of smaller airports. Furthermore, the addition of winglets decreased the issue of wake turbulence that earlier 757s were known to generate.