Air Ministry Pamphlet 172, Supercharger Sense. P/b, 18.5 x 24cm, 14pp. Issued by the Air Ministry Air Member for Training, November 1944. Printed in Delhi, India. Written for pilots of advanced trainers and operational type aircraft. Illustrated with diagrams. The paper is thinner and print quality lower than AMP's produced within the UK. A little dog-eared with a small tears on the rear lower edge. Good used condition. Stock code P20027.