Free Images - SnappyGoat.com- bestof:NapierGazelle.JPG en Napier Gazelle turboshaft aero engine at the Royal Air Force Museum London Own Nimbus227 2009-09-22 Aircraft engines at RAF Museum London

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Lisbon, Portugal: Ram Air Turbine (RAT) is a small propellor that will deploy in a serious emergency to supply emergency backup electrical power to the aircraft. Usually this happens after all main engines and the APU (auxiliary power unit) fail. Behind the two-blade propeller a hydraulic pump can be seen, besides power, the RAT provides emergency hydraulic pressure. The RAT generates power from the airstream by ram pressure due to the speed of the aircraft. It may be also called an air driven generator (ADG) -

$Left abandoned outside a hangar to the elements, this huge cargo plane is slowly becoming overgrown with moss and algae, the dirt is streaking down its hull, and the crevices around the engines are being used as nesting sites by birds. \n\nThe plane is monstrous however, 4 gigantic propeller engines - 2 per wing - power what was obviously once a beast of an aircraft, the size easily allowing it to carry troops, supplies, even vehicles in its hold. \n\nNow it stands as a piece of aviation history, obviously disused and obsolete, the tech has been surpassed by more moden aircraft.$

Side view of an old air craft jet engine without its covers

Complex wirings of rocket engine is possible through advanced engineering

8-piston aeronautical radial engine bottom view

A turboprop aircraft with a three-blade propeller is in the hangar. Selective focus.

Close up view of a propeller on an old air craft

Wide angle image of mechanical engineering in Aeronautics. Belonging to a Euro-fighter Typhoon.

iron works blast furnace parts, closeup of photo

Lockheed Constellation Passenger Airliner

Hendon, London, UK - June 29, 2014: Historic aircraft on display at the main entrance of London R.A.F. Museum.

Private jet aircraft in the hangar open for regular maintenance service.

View from Bellow of a propeller of an old dismantled plane inside a hangar to study its parts

Open engine compartment of an airplane at an aviation exhibition. Air transport

A propeller-driven, four engine airliner built by Lockheed Corporation in 1943. The first pressurized cabin civil airliner.

An Old torpedo from a warship. Open control of self-propelled weapon with an explosive warhead, launched above or below the water surface from a submarine.

$Airfield equipment. Tractor. Special equipment for aircraft transportation. Airplane \$

A part of a propeller aircraft standing in the hangar.

This machine gun is mounted to the nose of a combat aircraft.

Free Images: "bestof:NapierGazelle.JPG en Napier Gazelle turboshaft aero engine at the Royal Air Force Museum London Own Nimbus227 2009-09-22 Aircraft engines at RAF Museum London"

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