The Galloway Atlantic is a 500 hp V12 aero engine that was ordered into production towards the end of WW1.

The Atlantic saw postwar service in Handley Page V/1500 bombers built by Galloway’s parent company, William Beardmore & Co.[1] In contemporary publications the type is often referred to as the Beardmore, or BHP, Atlantic or 500 hp.

[4][6] Aircraft number E8287 was the first of the Beardmore built Handley Page V/1500s and was fitted with four Galloway Atlantic engines.

[4] The Atlantic was the last aircraft engine type manufactured by Galloway with the factory switching over to automobile production during the 1920s.

[7] A preserved Galloway Atlantic engine is on display at the Frontiers of Flight Museum in Dallas, Texas.