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Travel Air Commercial Airplane - Type 5000

Description: The 5000 is a semicantilever monoplane, closed cabin type, with pilot about in line with the leading edge of the wing and room for 4 passengers behind him. It is equipped with a Wright Whirlwind engine. A description of the visibility, propeller, power plant, pilot's cockpit, passenger cabin, landing gear, struts, wings, fuselage, empennage, general, characteristics, photographs, and drawings are provided.
Date: September 1927
Partner: UNT Libraries Government Documents Department
open access

Drag Measurements on a Junkers Wing Section: Application of the Betz Method to the Results of Comparative Tests Made on a Model and on an Airplane in Flight

Description: The comparison of model tests in flight can be based on the result of such measurements. They are very important from the aerodynamical point of view, as they lead to useful conclusions regarding the behavior of the wing, its best shape and the conformity of theoretical and actual flow. Although there still remains a certain prejudice against such measurements, I have still attempted to make these comparative tests in order to inspire confidence in their reliability.
Date: September 1927
Creator: Weidinger, Hanns
Partner: UNT Libraries Government Documents Department
open access

Building a Full-Size Glider

Description: The building and flying of a glider is possible for anyone who can use a few basic tools. This report presents some plans and techniques for building your own glider.
Date: September 1927
Creator: Camm, F. J.
Partner: UNT Libraries Government Documents Department
open access

Measurement of the Moments of Inertia of Full Scale Airplanes

Description: "This paper contains a description of the method of measuring the moments of inertia of full scale airplanes as practiced by the National Advisory Committee for Aeronautics at the Langley Memorial Aeronautical Laboratory. The method, while not at all new, is published for the information and guidance of others who may desire to make similar measurements. The paper includes as an appendix the computations for the moments of inertia of 0-2 airplane" (p. 1).
Date: September 1927
Creator: Green, M. W.
Partner: UNT Libraries Government Documents Department
open access

Tests of the N.P.L. airship models in the variable density wind tunnel

Description: Report presenting testing in the variable density wind tunnel on two airship models known as the NPL Standardization Models, long and short. The resistance or shape coefficients were determined for each model through a range of Reynolds numbers. Further work is found to be necessary in the standardization of wind tunnels.
Date: September 1927
Creator: Higgins, George J.
Partner: UNT Libraries Government Documents Department
open access

Effects of Roughness on Airfoils

Description: We will here report on the effects of coarsely roughening not only the pressure side but also the suction or upper side of airfoils, as the first group of a larger series of experiments.
Date: September 1927
Creator: Schrenk, O.
Partner: UNT Libraries Government Documents Department
open access

Experiments on airfoils with trailing edge cut away

Description: "Airfoils with their trailing edge cut away are often found on aircraft, as the fins on the hulls of flying boats and the central section of the wings for affording better visibility. It was therefore of some interest to discover the effect of such cutaways on the lift and drag and on the position of the center of pressure. For this purpose, systematic experiments were performed on two different airfoils, a symmetrical airfoil and an airfoil of medium thickness, with successive shortenings of t… more
Date: September 1927
Creator: Ackeret, J.
Partner: UNT Libraries Government Documents Department
open access

Seaplanes floats and hulls. Part 2

Description: Different float designs are presented and the investigations are discussed.
Date: September 1927
Creator: Herrmann, H.
Partner: UNT Libraries Government Documents Department
open access

Training Airplane "Arado SC 1"

Description: The Arado SC 1 is a staggered overhung biplane. It was build specifically as a training aircraft. A description of the aircraft design, the flight characteristics, and photos of the aircraft are provided.
Date: September 1927
Partner: UNT Libraries Government Documents Department
open access

Airfoil lift with changing angle of attack

Description: From Summary: "Tests have been made in the atmospheric wind tunnel of the National Advisory Committee for Aeronautics to determine the effects of pitching oscillations upon the lift of an airfoil. It has been found that the lift of an airfoil, while pitching, is usually less than that which would exist at the same angle of attack in the stationary condition, although exceptions may occur when the lift is small or if the angle of attack is being rapidly reduced. It is also shown that the behavio… more
Date: September 1927
Creator: Reid, Elliott G.
Partner: UNT Libraries Government Documents Department
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