The Boeing Company, Airplane Division. Jet Transport Performance Methods. Renton, Wash., The Boeing Company, 1964, 4th ed. 386 pages printed one-side, 2" thick text block, wrps in company card cover with acco binding, 4to (8.5x11"). Preface states: "The purpose...training aid for performance courses for customer personnel". This was used by Boeing with customers of their first jet transport, the Boeing 707. Very good. Likely not many of these still around; quite rare.