A pure hydrocarbon, one of the nine isometric heptanes, triptane was used as a blending agent in tests to datermine its value as an aircraft engine fuel or as a primary reference standard for knock testing of aviation gasoline.

Documents in this case history were obtained from the files of Air Technical Services Command, Wright Field, and Headquarters, Army Air Forces, Washington, D.C.
Compiled by Historical Office, Air Technical Service, Wright Field, May 1945.