Technical Report Archive & Image Library (TRAIL) - 103 Matching Results

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Dyle and Bacalan Metal Monoplane, D.B. 10: Night Bomber - Equipped with Two 420 HP. Jupiter Engines

Description: The D.B. 10 is manufactured of duraluminum and special high resistance steel. It can be used as a passenger aircraft or as a bomber. Details of the design, wings, fuselage, empennage, engines, landing gear, characteristics, performances, drawings, and photographs are provided.
Date: January 1927
Creator: Serryer, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Remarks on Building of Low-Powered Airplanes

Description: "If the low-powered airplane is to be used advantageously by private individuals, the most important consideration is a smaller fuel consumption and, hence, a lower engine power. From experiments with gliders, it appears entirely possible, by utilizing ascending winds (on the weather side of mountains and those generated by the heat of the sun) and by employing engine flight intermittently, as required to fly long distances over land" (p. 1).
Date: January 1924
Creator: Langsdorff, Werner v.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Photographic Time Studies of Airplane Paths

Description: The object of this report is the description of a method which seems to be practicable for determining the path of an airplane, especially in taking off and landing. This report tells how, by means of a camera, preferably a kinetograph, which simultaneously photographs a stop watch the distance of an airplane from the camera and its height above the ground can be determined.
Date: January 1926
Creator: Von Baumhauer, A. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Two-Stroke-Cycle Engines for Airplanes

Description: Now that the two-stroke-cycle engine has begun to make its appearance in automobiles, it is important to know what services we have a right to expect of it in aeronautics, what conditions must be met by engines of this type for use on airplanes and what has been accomplished.
Date: January 1926
Creator: Jalbert, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculation of Tubular Radiators of the Automobile Type

Description: "We propose to show how to calculate the cooling capacity of all radiators through which the air flows in separate streamlets, whether enclosed in actual tubes or not and whatever cross-sectional shape the tubes may have. The first part will give the fundamental principles for calculating velocity of air in the tubes and the heat exchange by radiation, conduction and convection, and show, by examples, the agreement of the calculation with experiments. In the second part, the effect of the dimen… more
Date: January 1926
Creator: Richter, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Possible Improvements in Gasoline Engines

Description: High-compression engines are investigated with the three main objects being elimination of vibration, increase of maximum efficiency, and conservation of this efficiency at the highest possible speeds.
Date: January 1923
Creator: Ziembinski, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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New Lateral Stabilizing Device for Airplanes

Description: "The proposed device tends to render the lateral stabilization of airplanes easier and more efficacious. The proposed solution is to mount the ailerons independently, in such a manner that they can turn freely, under the action of the relative wind, about an axis located in front of the extreme position of the center of the lift" (p. 1).
Date: January 1921
Creator: Constantin, Louis
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Marcel Besson Wing Sections

Description: Three different Marcel Besson airfoils are investigated in terms of maximum lift, maximum fineness, minimum required power, and wing section drag. Comparisons are then made between the three airfoils.
Date: January 1923
Creator: Delanghe, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Soaring flight and the Rhön contests

Description: Explanation of soaring flight. Static and dynamic soaring flight. Results of the Rhon contest. Description of the most important gliders. Notes on Soaring Flight Contests in France and England.
Date: January 1923
Creator: Hoff, Wilhelm
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Aerial navigation : on the problem of guiding aircraft in a fog or by night when there is no visibility

Description: Report discussing the use of magnetic fields and wire to navigate aircraft in conditions of poor visibility is presented. This field may be considered to be derived from a double lemniscate, considered in the particular case where the origin is a double point formed from the magnetic field of the slack wire, from the field produced by the return currents and from the field due to the currents induced in the conducting mass. These fields are dephased in two ways, one in the direction of the wire… more
Date: January 1922
Creator: Loth, William
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The determination of the effective resistance of a spindle supporting a model aerofoil

Description: An attempt was made to determine the effect of spindle interference on the lift of the airfoil by measuring moments about the axis parallel to the direction of air flow. The values obtained are of the same degree as the experimental error, and for the present this effect will be neglected. The results obtained using a U.S.A. 15 wing (plotted here) show that the correction is nearly constant from 0 degrees to 10 degrees incidence and that at greater angles its value becomes erratic. At such angl… more
Date: January 1921
Creator: Davidson, W. E. & Bacon, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurements of Rudder Moments on an Airplane During Flight

Description: Tests indicated that: 1) C airplanes with two struts are extremely susceptible to aileron maneuvers, slight alterations of the aileron sufficing to compensate great unequalized moments; 2) great unequalized moments can be produced or neutralized by the unequalized alternation of the angle of attack below the outer and inner struts. Adjustment below the outer strut is the more effective of the two. 3) When a load of bombs is suspended beyond the center of the airplane, below the wings, the bombs… more
Date: January 1921
Creator: Heidelberg, V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The 300 H.P. Benz Aircraft Engine

Description: This report provides a description of the Benz 300 H.P. aircraft engine containing 12 cylinders placed at a 60° angle. It includes a detailed description of the development of the constructional points, particularly the cylinders, pistons, and connecting rods, as well as the engine fitting, lubrication, oil pumps, bearings, oil tank, fuel pump, carburetors, and cooling system. There are seven pages of illustrative figures at the end of the report.
Date: January 1921
Creator: Heller, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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