Categories: Aircraft without specifications | Aircraft piston engines | Aircraft engine stubs The Armstrong-Siddeley automobiles (and later aircraft engines) were an English marque manufactured from 1919 (after the company was formed in 1917 by a merger between two Coventry_based companies, Armstrong-Whitworth and Siddeley-Deasy) to 1960. ... The Armstrong Siddeley Leopard was an aero engine developed by Armstrong Siddeley. ... The Armstrong Siddeley Jaguar was an aero engine developed by Armstrong Siddeley. ... The Armstrong Siddeley Mongoose was an aero engine developed by Armstrong Siddeley. ... Armstrong-Siddeley Cheetah X The Armstrong-Siddeley Cheetah is a British air-cooled aircraft radial engine. ... The Armstrong-Siddeley Nimbus was an aero engine developed by Armstrong Siddeley. ... The Sapphire was a jet engine produced by Armstrong Siddeley in the 1950s. ... The Double Mamba was an Armstrong-Siddeley gas turbine turboprop engine design of around 3,000–4,000 hp (2,500–3,000 kW). ... The Mamba was Armstrong-Siddeleys gas turbine turboprop engine design of around 1,500 hp (1,100 kW). ... The Armstrong-Siddeley Adder was an early British turbojet engine developed by the Armstrong Siddeley company and first run in November 1948. ... This list of aircraft is sorted alphabetically, beginning with the name of the manufacturer (or, in certain cases, designer). ... This is a list of aircraft manufacturers (in alphabetic order). ... List of aircraft engines: // Allison V-1710 Alvis Alcides Alvis Leonides Alvis Leonides Major Alvis Maenoides Alvis Pelides Armstrong Siddeley Leopard Armstrong Siddeley Jaguar Armstrong Siddeley Panther Armstrong Siddeley Mongoose Armstrong Siddeley Puma Armstrong Siddeley Cheetah Armstrong Siddeley Nimbus Beardmore Bentley BR1 Rotary BMW 132 BMW 139 BMW 801 Bramo... This is a list of aircraft engine manufacturers both past and present. ... This is a list of airlines in operation (by continents and country). ... This is a list of Air forces, sorted alphabetically by country. ... This is an incomplete list of aircraft weapons, past and present. ... Below is a list of (links to pages on) missiles, sorted alphabetically by name. ... This is a timeline of aviation history. ...