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Variation of Hydrodynamic Impact Loads With Flight-Path Angle for a Prismatic Float at 6 Degrees and 9 Degrees Trim and a 22-1/2 Degree Angle of Dead Rise

Description: Report discusses the results of testing "to determine the relationship between impact normal acceleration and flight-path angle for seaplanes landing in smooth water" (from Summary). The tests were done at high and low forward speeds and trims at 6 degrees and 9 degrees, a 22.5 degree angle of dead rise, and a gross weight of 1100 pounds. Information about the forces acting on the aircraft and maximum depth of immersion and trim is provided.
Date: February 1946
Creator: Batterson, Sidney A. & Stewart, Thelma
Partner: UNT Libraries Government Documents Department
open access

Ditching Tests With 1/16-Size Models of the Army B-17 Airplane in Langley Tank Number 2 and on an Outdoor Catapult

Description: Report presenting tests with dynamically similar models made to study the behavior of the Army B-17F and B-17G when ditched and to determine the best way to land them in calm and rough water. Various landing attitudes, speeds, and conditions of damage were simulated. The ideal landing condition was found to be in a three-point landing attitude and with the flaps 45 degrees at the slowest possible speed.
Date: April 1945
Creator: Tarshis, Robert P. & Stewart, Thelma
Partner: UNT Libraries Government Documents Department
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