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Aerodynamic Characteristics of a Refined Deep-step Planing-tail Flying-boat Hull with Various Forebody and Afterbody ShapesAn investigation was made in the Langley 300-mph 7- by 10-foot tunnel to determine the aerodynamic characteristics of a refined deep-step planing-tail hull with various forebody and afterbody shapes and, for comparison, a streamline body simulating the fuselage of a modern transport airplane. The results of the tests indicated that the configurations incorporating a forebody with a length-beam ratio of 7 had lower minimum drag coefficients than the configurations incorporating a forebody with length-beam ratio of 5. The lowest minimum drag coefficients, which were considerably less than that of a conventional hull and slightly less than that of a streamline body, were obtained on the length-beam-ratio-7 forebody, alone and with round center boom. Drag coefficients and longitudinal- and lateral-stability parameters presented include the interference of a 21-percent-thick support wing.
Document ID
19930083047
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Riebe, John M
Naeseth, Rodger L
Date Acquired
August 16, 2013
Publication Date
June 1, 1952
Report/Patent Number
NACA-TN-2489
Accession Number
93R12337
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
SEAPLANES - GENERAL STUDIES
HULLS - AERODYNAMIC
STABILITY, DIRECTIONAL - STATIC
WING-FUSELAGE COMBINATIONS - AIRPLANES
STABILITY, LONGITUDINAL - STATIC
BODIES - FINENESS RATIO

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