Air Ministry Pamphlet 136, Engine Sense, Some Thoughts For Pilots At The S.F.T.S, A.F.U. and O.T.U. P/b, 18.5 x 24cm, 14pp. Prepared in the Ministry of Aircraft Production and issued by the Air Ministry, September 1942, revised April 1944. The cover is a little dog-eared, otherwise in very good used condition. Stock code P20025.