JET ENGINE

WHITTLE AND VON OHAIN SPEED UP AIR TRAVEL FOR BOTH THE PUBLIC AND MILITARY.

The turbojet engine is an air breathing jet engine which is usually used in aircraft. it consist of turbine with propelling nozzles. the gas turbine has a compressor, a turbine (which is used to drive the compressor), an inlet, and a combustion chamber.

A jet engine uses a fan to suck air into a cylindrical chamber and the second turbine fan to compress it. Then fuel is mixed with this high pressure air and ignited. The hot expanding burning gases then blast out of a nozzle at the rear if the engine thrusting the engine forward, And the aircraft it is usually attached to, with great force.

The independent co inventor were English aviation engineer Sir frank whittle and the German airplane designer Dr. Han von Ohain  (1911-1998). Ohain's engine was tested in the Heinkel He178, flying first in 27 August , 1939. Whittle's first engine, the whittle unit (WU), was completed in 1937 and subsequently fitted to an aircraft called the pioneer (E.28/39), build by the gloster aircraft company. The first flight was on May 15, 1941.

World war II saw swift development of the jet engine and airplane. In united states bell XP-59 flew in September 1942, and by 1944 both the Messerschmitt Me 262 and the Gloster meteor were being mass production. Jet to jet dogfight were taking place during the Korean war in 1950. By 1952 BOAC were using the de Havilland comet jetliner on their London to johannesburg route

Jet engine work most effectively at altitude of between 6 and 9 miles (10 to 15 km). Here modern aircraft have cruising speed of between 420 and 580 miles (680 and 900) per hour, this being about 80 percent the ambient speed and sound. Propeller powered aircraft have to fly at much altitude and fly much more slowly. Also propeller engine are much more costly to manufacture and maintain.

The compressor component are made from titanium and the combuster component are made of a nickel super alloy such as Inconel 625