supersonic jetliner![click to hear](/images/speaker.jpg)
Passenger aircraft whose cruising speed (1500 mph) is faster than the speed of sound (761 mph). The Concorde was the best known commercial aircraft of this type.
variable ejector nozzle ![click to hear](/images/speaker.jpg)
Duct whose mouth widens as the plane climbs, thus enabling the engines to increase output.
delta wing ![click to hear](/images/speaker.jpg)
Thin triangular wing that is especially aerodynamic.
droop nose ![click to hear](/images/speaker.jpg)
Articulated nose that is lowered on takeoff and landing to provide the pilot with better visibility.