Armstrong siddeley sapphire 346 turbo ,first propane setup .

About Armstrong Siddeley

Armstrong Siddeley was a British engineering group that operated during the first half of the 20th century. It was founded in 1919 and is best known for the production of luxury vehicles and aircraft engines. The company was created following Armstrong Whitworth 's purchase of Siddeley-Deasy, a manufacturer of luxury motor cars marketed to the top echelon of society. After the merger of companies, this focus on quality continued throughout in the production of cars, aircraft engines, gearboxes f...