Original sentence: He achieved the rank of Lieutenant and flew for the Royal Air Force and the United States Air Service.He flew the British Sopwith Camel and the Royal Aircraft Factory S
Edited sentence: 84 Squadron RAF, based in Bertangles and commanded by Sholto Douglas.After some training with the RAF, Vaughn was posted in April, 1918, to the No.In August 1918 Vaughn was transferred to the 17th Aero Squadron, United States Air Service where he flew the BritishSopwith Camel.While with the 84th he flew the the Royal Aircraft Factory S