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Roy Publishers., 1967. Dust jacket shows original price of $3.75. Spine is Sun Faded. Whittle patented the gas-turbine jet engine in 1930 and it was used by the RAF against Hitler's flying bombs. Whittle was knighted in 1948 for his major contribution to the flying industy. Former owner name on front end paper.139 pages. Dust Jacketed Hardcover. Very Good/Good +. 8vo - over 7¾" - 9¾" tall.

London,, 1967. First Edition. Hardback. Dust Jacket.. Very good with small sunned patch to head of spine. Dust jacket in good, if slightly faded and soiled condition, with 1.7 cm tear with loss at top of spine. Otherwise interally clean and tight copy. . 8vo. Pp: 140. First Edition. White and blue illustrated dust jacket with black lettering. Publisher's original blue boards with darker blue lettering at spine.

New York: Roy Publishers, 1967. First US ed. Hardcover. Near fine, with small,slight lower edge bump to board lips only, in near fine(+) jacket with a two extremely tiny closed edge-tears, in archival mylar.. Octavo in pale blue cloth and pale blue jacket illus in b&w; 139 pages 21 cm. "Air Commodore Sir Frank Whittle...(1907 - 1996) was an English engineer, inventor and Royal Air Force (RAF) air officer. He is credited with having invented the turbojet engine. A patent was submitted by Maxime Guillaume in 1921 for a similar invention which was technically unfeasible at the time. Whittle's jet engines were developed some years earlier than those of Germany's Hans von Ohain, who designed the first-to-fly (but never operational) turbojet engine. Whittle demonstrated an aptitude for engineering and an interest in flying from an early age. At first he was turned down by the RAF but, determined to join the force, he overcame his physical limitations and was accepted and sent to No. 2 School of Technical… Leer más