Wingtip device
Videos
Wingtip devices are intended to improve the efficiency of fixed-wing aircraft by reducing drag. Although there are several types of wing tip devices which function in different manners, their intended
The Airbus A350 wingtip device
The Ha 137 prototype aircraft, fitted with vertical wing extensions, c.1935–1937
Heinkel He 162A with Lippisch-Ohren wingtip devices
Van's RV-6 showcasing Hoerner-style wingtips
Fuel economy in aircraft
Videos
The fuel economy in aircraft is the measure of the transport energy efficiency of aircraft. Fuel efficiency is increased with better aerodynamics and by reducing weight, and with improved engine brake
Refuelling an Airbus A320 with biofuel
A Boeing 787-8 of Norwegian Long Haul
An Airbus A330-300 of Thai Airways at Tokyo Narita
The earliest jet airliner, the de Havilland Comet