This company was located in Newcastle-on-Tyne, belonging to Sir W. G. Armstrong. It was called “Armstrong Whitworth Co. Ltd”.

-This company was mainly dedicated to aircraft manufacturing but there is one known engine from this company, which is proved to be experimental.

-It was a V-12 engine with a very narrow cylinder block angle of 45^° instead of the usual and logical 60^°.

"Armstrong Whitworth V-12"

-It was water cooled and had a small Ricardo-type supercharger.

"Armstrong Whitworth V-12, side view"

-After WWI, in 1920 it merged with Siddeley-Deasy, becoming  Armstrong-Siddeley.

"Logo Armstrong - Whitworth"

-Armstrong-Siddeley later passed through the hands of Hawker-Siddeley, and after that it was absorbed by Bristol Engines (Bristol-Siddeley) and is finally integrated in Rolls-Royce.

-Another interesting engine is the following:

-Apparently it has been designed by the brand's research and engineering team. Manufacturer of aircraft engines.

-It is a new engine, but for quite some time ago, using two-stroke cycle and Diesel.

-Astonishing in its idea, though with traces of Wifredo Ricart's Ceta-Z regarding the indirect crankshaft system.

"Diagram and engine test" (PiP)