Technical Report Archive & Image Library (TRAIL) - 10 Matching Results

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Albessard "Triavion" Airplane (French): A Two-Seat Tandem Monoplane

Description: Autostability is the watchword of this tandem monoplane. The tandem design causes a natural flat flight pattern and it can also land and take off from very short runways. Details of the form, wings, ailerons, fuselage, characteristics, performances, drawings, and photographs are provided.
Date: January 1929
Creator: Serryer, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fluttering of the Tail Surfaces of an Airplane and the Means for Its Prevention

Description: The present article, which constitutes a continuation of the work of Von Baumhauer and Konig, will therefore be restricted to the fluttering of the tail surfaces and especially to oscillations of the horizontal empennage. This will also illustrate the characteristics of all other phenomena of fluttering.
Date: January 1929
Creator: Scheubel, F. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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"Safety" Fuels for Aircraft Engines

Description: Memorandum exploring the concept that if fire safety is not to be acquired at the expense of the functioning reliability of the engine, we must try to burn fuels which are less inflammable at their temperature of utilization. A definition of temperature of utilization is explored and some examples for various types of fuels are given.
Date: January 1929
Creator: Grebel, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Device for the Automatic Control of Airplanes

Description: This report provides a description of an automatic control mechanism that consists of an automatic elevator control, aileron control, and a rudder control. Each automatic control can be independently switched on or off.
Date: January 1929
Creator: Gradenwitz, Alfred
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The measurement of fluctuations of air speed by the hot-wire anemometer

Description: "The hot-wire anemometer suggests itself as a promising method for measuring the fluctuating air velocities found in turbulent flow. The only obstacle is the presence of a lag due to the limited energy input which makes even a fairly small wire incapable of following rapid fluctuations with accuracy. This paper gives the theory of the lag and describes an experimental arrangement for compensating for the lag for frequencies up to 100 or more per second when the amplitude of the fluctuation is n… more
Date: January 8, 1929
Creator: Dryden, H. L. & Kuethe, A. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reduction of observed airplane performance to standard conditions

Description: This report shows how the actual performance of an airplane varies with air temperature when the pressure is held constant. This leads to comparatively simple methods of reducing observed data to standard conditions. The new methods which may be considered exact for all practical purposes, have been used by the Navy Department for about a year, with very satisfactory results. The report also contains a brief historical review of the important papers which have been published on the subject of p… more
Date: January 1929
Creator: Diehl, Walter S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The twenty-foot propeller research tunnel of the National Advisory Committee for Aeronautics

Description: This report describes in detail the new propeller research tunnel of the National Advisory Committee for Aeronautics at Langley Field, Va. This tunnel has an open jet air stream 20 feet in diameter in which velocities up to 110 M. P. H. Are obtained. Although the tunnel was built primarily to make possible accurate full-scale tests on aircraft propellers, it may also be used for making aerodynamic tests on full-size fuselages, landing gears, tail surfaces, and other aircraft parts, and on model… more
Date: January 1929
Creator: Weick, Fred E. & Wood, Donald H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effect of Oxygen on the Ignition of Liquid Fuels

Description: The ignition temperature, ignition lag, and ignition strength of simple and homogeneous fuels in combustion air of small oxygen content differ from what they are in air of greater oxygen content. In the case of small oxygen content, these fuels behave as if mixed unevenly. In the case of air with a definite oxygen content, the simple fuels have two ignition points, between which ignition takes place within a certain temperature range. The phenomena are explained by pyrogenous decomposition, com… more
Date: January 1929
Creator: Pahl, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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