Hydrodynamic tests of a 1/10-size model of the hull of the Latecoere 521 flying boat : NACA model 83

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Description

A 1/10-size model of the hull of the French flying boat Latecoere 521 was tested in the NACA tank. This model is one of a series of models of the hulls of actual flying boats of both foreign and domestic type that are being tested in the NACA tank to provide information regarding the water characteristics of a variety of forms of hull and to illustrate the development of present-day types of flying boat. The lines and the offsets of the hull were obtained from the manufacturer through the Paris office of the NACA. The form of the stub-wing stabilizers ... continued below

Creation Information

Olson, Roland E & Lina, Lindsay J December 1, 1941.

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This report is part of the collection entitled: National Advisory Committee for Aeronautics Collection and one other and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 76 times . More information about this report can be viewed below.

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  • Main Title: Hydrodynamic tests of a 1/10-size model of the hull of the Latecoere 521 flying boat : NACA model 83
  • Series Title: NACA Technical Notes

Description

A 1/10-size model of the hull of the French flying boat Latecoere 521 was tested in the NACA tank. This model is one of a series of models of the hulls of actual flying boats of both foreign and domestic type that are being tested in the NACA tank to provide information regarding the water characteristics of a variety of forms of hull and to illustrate the development of present-day types of flying boat. The lines and the offsets of the hull were obtained from the manufacturer through the Paris office of the NACA. The form of the stub-wing stabilizers was not furnished and, therefore, the model was tested without them. The model was tested free to trim at the design initial load (initial load coefficient of 0.428) and by the general method at load coefficients from 0.025 to 0.6. The spray characteristics of the model are good. The form of the bow would be particularly desirable for rough water use. The interference of the afterbody and the tail extension is excessive, causing very high resistance at high speeds. A violent vertical instability is present at trims of 4 degrees and 6 degrees with light loads and high speeds.

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  • : 93R10880
  • URL: http://hdl.handle.net/2060/19930081590 External Link
  • Report No.: NACA-TN-836
  • Center for AeroSpace Information Number: 19930081590
  • Archival Resource Key: ark:/67531/metadc54656

Collections

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National Advisory Committee for Aeronautics Collection

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915 to undertake, promote, and institutionalize aeronautical research. On October 1, 1958 the agency was dissolved, and its assets and personnel transferred to the newly created National Aeronautics and Space Administration (NASA).

Technical Report Archive and Image Library

This selection of materials from the Technical Report Archive and Image Library (TRAIL) includes hard-to-find reports published by various government agencies. The technical publications contain reports, images, and technical descriptions of research performed for U.S. government agencies. Topics range from mining, desalination, and radiation to broader physics, biology, and chemistry studies. Some reports include maps, foldouts, blueprints, and other oversize materials.

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Creation Date

  • December 1, 1941

Added to The UNT Digital Library

  • Nov. 14, 2011, 10:28 p.m.

Description Last Updated

  • Jan. 31, 2017, 6:04 p.m.

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Olson, Roland E & Lina, Lindsay J. Hydrodynamic tests of a 1/10-size model of the hull of the Latecoere 521 flying boat : NACA model 83, report, December 1, 1941; (digital.library.unt.edu/ark:/67531/metadc54656/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.