National Advisory Committee for Aeronautics (NACA) - 548 Matching Results

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Windmills in the Light of Modern Research

Description: The chief contribution of modern research in the field of windmills is a better understanding of the phenomena and of the available means for the accomplishment of certain results, but also of the natural limits to their productive capacity.
Date: August 1928
Creator: Betz, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Wing Resistance Near the Ground

Description: In the present treatise, a convenient method will be indicated, which makes it possible to determine the polar curve of an airplane at short distances from the ground by a simple short calculation, when the polar curve is known for flight in unlimited space.
Date: April 1922
Creator: Wieselsberger, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Wing With a Pointed Tip

Description: In airplane construction generally one finds an almost exclusive use of wing tips that are practically square end but occasionally those with large rounded tips. For use as a cantilever wing, however, a wing with pointed tips may contain valuable aerodynamic advantages.
Date: October 1922
Creator: v. Prondzynski, Stephan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Wings With Nozzle-Shaped Slots

Description: Even before the publication of the results of the Gottingen experiments on the removal of the boundary layer by suction, experiments with nozzle-slotted wings were begun. A report of those experiments will be given here. Taken collectively, the experiments show that, as regards increasing the lift values, the effect of the air flowing from the nozzle-shaped slots is similar to the effect produced in the case of ordinary slotted wings. The high lift values are attained, however, at the smaller a… more
Date: July 1929
Creator: Katzmayr, Richard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Wire Suspensions in Wind Tunnel Experiments

Description: The elimination of the rigid supports for models and their replacement by wires constitute a great improvement by rendering negligible the interactions of support. There are disadvantages to wire, namely, the aerodynamic resistance is very large and their use is rather difficult because the whole suspension lacks rigidity and easily becomes distorted. We will here investigate the nature of these distortions, evaluate the errors they entail and describe the methods for taking account of or avoid… more
Date: December 1925
Creator: Kerneis, Jean
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Wood Versus Metal in Airplane Construction

Description: The aim of this article is to present, in broad outline, a scientific method for solving the problem, "Wood or Metal." It will be shown that structural methods have by no means reached their final perfection. The strength of the different materials is discussed as well as different construction methods.
Date: June 1923
Creator: Seehase, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wood Versus Metal in Airplane Construction

Description: The aim of this article is to present, in broad outline, a scientific method for solving the problem, "Wood or Metal." It will be shown that structural methods have by no means reached their final perfection. The strength of the different materials is discussed as well as different construction methods.
Date: June 1923
Creator: Seehase, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The World's Air Transportation Services: Data as to Passengers, Mail, and Goods Carried by American and European Transportation Services

Description: This report presents detailed descriptions, statistics, and graphs on European and American air transport. The European countries listed are Belgium, Czecho-Slovakia, Denmark, France, Germany, Great Britain, Holland, and Italy.
Date: June 1922
Creator: Office of Aeronautical Intelligence
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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