Jet aircraft

Jet aircraft are aircraft with jet engines. Unlike propeller-powered aircraft, jet aircraft normally fly at altitudes as high as 100 to 1,5 meters, about 33 to 49,000 feet (14,900 m). At these altitudes, jet engines can achieve maximum efficiency over long distances. The engines in propeller powered aircraft achieve their maximum efficiency at much lower altitudes.

Gallery

• Ohain USAF He 178 page60.jpg

  A Heinkel He 178, the first jet aircraft

• All Nippon Airways Lockheed L-1011-385-1 Tristar 1 (JA8509 193P-1100) (5043455689).jpg

  A wide body jet aircraft

• KLM (SkyTeam livery), PH-BXO, Boeing 737-9K2 (15836383413).jpg

  A Boeing 737, the world's best selling jet aircraft

Jet Aircraft Media

• Continental Airlines DC-10.jpg

  McDonnell Douglas DC-10 of Continental Airlines is an example of a Trijet configuration

• Ohain USAF He 178 page61.jpg

  The Heinkel He 178 was the first aircraft to fly on turbojet power, in August 1939

• Boeing 707-138B Qantas Jett Clipper Ella N707JT.jpg

  CANON 400D & 100-400IS LE BOURGET 20/06/2007

• British Airways Concorde G-BOAC 03.jpg

  The Concorde was the longest running commercial SST providing service from 1976 to 2003

• XH-59 U.S. Army demonstrator.jpg

  The Sikorsky S-69 was a compound helicopter with auxiliary turbojets

• Lockheed SR-71 Blackbird (modified).jpg

  The Lockheed SR-71 was one of the fastest jet flying at Mach 3.35 (3,661 km/h (2,275 mph)

• Propulsive efficiency.png

  Dependence of the propulsive efficiency (\eta_p) upon the vehicle speed/exhaust speed ratio (v/c) for rocket and jet engines