I think high performance planes are using serrated edges on the wings to alter shock waves and reduce noise and drag. I guess it has the same effect on the tail end of the engine to alter the shock waves.
Oh, those humpback whales and their weird fins. First, they inspired more efficient wind turbines. Next, their unique qualities were copied by undersea turbines used to harness tidal flow energy. Now, they've led to rotor blades that allow helicopters to be more maneuverable. It all comes down to bumps along their leading edge, known as tubercles.
Deaths per 100 million passenger miles in airplanes. Some airline industry executives assert that passengers are now more likely to die in an airport than on an airliner.
Deaths per 100 million passenger miles on buses and trains.
Deaths per 100 million passenger miles in cars.
1 in 1.2 million
Airplane flights that involve some kind of accident. The mishaps are not always fatal.
1 in 3.7 million
Chance that you will be killed by a shark.
1 in 11 million
Chance that you will be killed in an airplane crash.
1 in 5,000
Odds that you will be killed in a car crash. "You're much more likely to die getting to the airport than you are flying in the plane," said the editors at Discovery.
Those big engines make the original 747 engines look puny.
Engines: Four GEnx-2B67 turbofans
Typical cruising speed: Mach 0.855 (855 km/h)
Range: 14,815 km (8,000 nm)
Max takeoff weight: 435,456 kg (960,000 lb)
Wingspan: 68.5 m (224 ft 9 in)
Length: 74.2 m (243 ft 6 in)
Passenger seating: 450 passengers in a typical three-class configuration
Cost: About $205 million to $240 million US