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ONCE more the wheel of the months has turned full circle and we print another of DR. KLEMIN'S summaries of the main papers read at the annual meeting of the INSTITUTE OF THE AERONAUTICAL SCIENCES, appearing this year two months earlier than in 1946, which have been a regular feature of AIRCRAFT...
IT is not proposed this year to write a full review of the Annual Meeting but rather to set down, informally, those developments, trends, analyses, or predictions which appeared most significant.
It is well known that notches have a deleterious influence on the fatigue strength of parts. A constant, the sensitivity index, is commonly used to relate the fatigue stress concentration factor to the elastic stress concentration factor. The author outlines a simpler hypothesis, which he claims...
THE limitations of the various methods of Beam Analysis are often improperly understood and it is felt that an explanation and criticism of them would be of some value.
When the flow in long pipes is considered, the frictional losses occurring before the pipe entry can usually be neglected. If thus an isentropic flow up to the pipe entry were assumed, the Grashof and Zeuner equation A. 12 could be represented in the p plane of the dimensionless de Saint Venant...
THE practice of mechanically sealing liquids and gases within machines has shown little tendency to undergo any fundamental change since the earliest days of the art, and apart from the semisealing properties of the elementary labyrinth in which measurable clearances exist as between a rotating...
TO overcome the discomfort, nerve strain and fatigue to both passengers and crew on multiengined aircraft resulting from the noise and vibrations of engines running at slightly varying speeds, the need of an accurate, easily read indication of such variations is readily apparent. A direct...
Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Council, Reports and Technical Notes of the United States National Advisory Committee for Aeronautics and publications of other similar Research Bodies as issued.
This report is a concise analysis of production during the war years at the eleven factories making DaimlerBenz engines. The output in 1944 was 28,669 compared with 3,681 in 1939. The effects of shortages steel and small forgings were the most critical and bomb damage are given. German...
BEFORE commencing an inspection obtain the pilot's report on the previous flight. In the course of the following inspections, as with all inspections, components which are found to be damaged or defective must be repaired, if possible, or replaced. However, before repairing a component, the...
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