Lot 189

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Description:

THE DEVELOPMENT OF GERMANY'S JET-POWERED MILITARY AIRCRAFT
A historically-important archive of American military first-generation copies and translations of scientific reports, graphs and photographs documenting parts of the development of the Me-262, the first jet-powered fighter aircraft, and the Arado Ar-234, the first jet-powered bomber. The data was captured by U.S. armed forces in the closing days of World War II and reproduced in 1946. It was then given to the "Preliminary Design" department at Lockheed Aircraft Corp. for study. A total of four bound folders are present, each representing a different aspect of jet propulsion and jet aircraft development. They include: 1.) A Rocket Drive for Long-Range Bombers, by EW. Sanger and J. Bredt, Ainring, August, 1944. Translated by H. Hamermesh for the Technical Information Branch of the U.S. Navy. The report concentrates on the limitations of rocket propulsion due to thermal and mechanical stresses. The authors study these deficiencies and make recommendations so that aircraft might be able to exceed the speed of sound. The report, 174pp., delves into take-off, projection of bombs, types of attack, testing, etc. and is filled with copies of the original graphs, maps and photos, including a color fold-out schematic. The authors envisaged their aircraft being capable of bombing North American cities. 2.) (Messerschmitt 262 Graph and Weight Tables, Center of Gravity, and Trim Plan), approx. 80pp. 4to., copies of microfilm images cataloged at Wright Field in 1946 showing notes, calculations and side views of various versions of the famous aircraft with and without arms and ammunition and fuel. Untranslated. 3.) The Tailless Construction of the Turbo-Jet Fighter Compared to the Standard Model, by "Kappaus", [n.d.], translated May 22, 1946 at Wright Field, 22pp. 4to., a scientific examination of the advantages of tailless aircraft which the author claims allows greater speed, decreased wing loading, shorter takeoff distances, and greater speed required before reaching critical Mach value. 4.) Development of Turbo-Jet Fighter Bomber Arado AR 234, ca. Sep. 19, 1944, approx. 80pp. 4to., microfilm copies ex: Wright Airfield, untranslated. A file of aerodynamic calculations, measurements, and schematic views of the AR 232 and AR 234 including design of the wings and control surfaces, aerodynamic stress analysis, influence of Mach-number on stress, and so on. Several of the reports are marked "RESTRICTED", all are in fine condition. An important grouping from the dawn of jet-powered flight.

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September 10, 2013 11:00 AM EDT
Chesapeake City, MD, US

Alexander Historical Auctions LLC

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