Rolls-Royce Griffon
Overview
Litre
pic|200px|right|thumb|One litre is equivalent to this cubeEach side is 10 cm1 litre water = 1 kilogram water The litre is a metric system unit of volume equal to 1 cubic decimetre , to 1,000 cubic centimetres , and to 1/1,000 cubic metre...
(2,240 cu in
Cubic inch
The cubic inch is a unit of measurement for volume in the Imperial units and United States customary units systems. It is the volume of a cube with each of its 3 sides being one inch long....
) capacity
Engine displacement
Engine displacement is the volume swept by all the pistons inside the cylinders of an internal combustion engine in a single movement from top dead centre to bottom dead centre . It is commonly specified in cubic centimeters , litres , or cubic inches...
, 60-degree V-12
V12 engine
A V12 engine is a V engine with 12 cylinders mounted on the crankcase in two banks of six cylinders, usually but not always at a 60° angle to each other, with all 12 pistons driving a common crankshaft....
, liquid-cooled aero engine
Aircraft engine
An aircraft engine is the component of the propulsion system for an aircraft that generates mechanical power. Aircraft engines are almost always either lightweight piston engines or gas turbines...
designed and built by Rolls-Royce Limited
Rolls-Royce Limited
Rolls-Royce Limited was a renowned British car and, from 1914 on, aero-engine manufacturing company founded by Charles Stewart Rolls and Henry Royce on 15 March 1906 as the result of a partnership formed in 1904....
. In line with company convention, the Griffon was named after a bird of prey
Bird of prey
Birds of prey are birds that hunt for food primarily on the wing, using their keen senses, especially vision. They are defined as birds that primarily hunt vertebrates, including other birds. Their talons and beaks tend to be relatively large, powerful and adapted for tearing and/or piercing flesh....
, in this case the Griffon Vulture
Griffon Vulture
The Griffon Vulture is a large Old World vulture in the bird of prey family Accipitridae.The Griffon Vulture is long with a wingspan. In the nominate race the males weigh and females typically weigh , while in the Indian subspecies the vultures average...
.
Design work on the Griffon started in 1938 at the request of the Fleet Air Arm
Fleet Air Arm
The Fleet Air Arm is the branch of the British Royal Navy responsible for the operation of naval aircraft. The Fleet Air Arm currently operates the AgustaWestland Merlin, Westland Sea King and Westland Lynx helicopters...
, for use in new aircraft designs such as the Fairey Firefly
Fairey Firefly
The Fairey Firefly was a British Second World War-era carrier-borne fighter aircraft and anti-submarine aircraft of the Fleet Air Arm ....
. In 1939 it was also decided that the engine could be adapted for use in the Spitfire
Supermarine Spitfire (Griffon powered variants)
The Rolls-Royce Griffon engine was designed in answer to Royal Naval specifications which required an engine capable of generating good power at low altitudes...
.
