UNT Libraries Government Documents Department - 196 Matching Results

Search Results

Results: 1 - 24 next
open access

Balloon Fabrics Made of Goldbeater's Skins

Description: Goldbeater's skin, which is the prepared outside membrane of the large intestine of an ox, is examined as a balloon fabric and details of how goldbeater's skin is prepared for use are provided. The construction techniques employed by Germany, France, and England are all discussed.
Date: December 1922
Creator: Chollet, L.
Item Type: Refine your search to only Report
open access

Commercial Airplanes and Seaplanes: Thick Wings or Thin Wings - All Metal or Mixed Construction

Description: In this report we will consider, as the dominating characteristic, either the load carried, the speed, the radius of action, the fuel consumption, the activity of transport, or, lastly, the qualities of comfort and safety. The first four factors determine the theoretical efficiency, while the others determine its practical efficiency.
Date: December 1922
Creator: Point
Item Type: Refine your search to only Report
open access

Depreciation of Aircraft

Description: Report presenting an examination of the concept that aircraft are essentially fragile and deteriorate rapidly when in service, which the author considers to be a misunderstanding due to the intense conditions occurring during war. Some examples of commercial airplane lines that have been running for several years and some potential deterioration costs that must be considered are provided.
Date: December 1922
Creator: Warner, Edward P.
Item Type: Refine your search to only Report
open access

Aeronautical Museums

Description: Different methods of presenting aeronautical artifacts are examined. The advantages of operating an aeronautical museum and its ability to increase public interest in aircraft are provided.
Date: November 1922
Creator: Warner, Edward P.
Item Type: Refine your search to only Report
open access

Air reactions to objects moving at rates above the velocity of sound with application to the air propeller

Description: From Discussion: "To meet these unusual conditions three sets of ball-bearings were employed and arranged in tandem, thereby reducing their speeds by the ratio of the number of sets used, as shown in Fig.3. This proved to be a complete success. The results obtained in experiments with a two-blade, 4 foot propeller of series 2, are given in Fig. 9."
Date: November 1922
Creator: Reed, S. Albert
Item Type: Refine your search to only Report
open access

Comparison of Nonrigid and Semirigid Airships

Description: "One of the main subjects of airship science consists in establishing cooperation between two vertical forces, the buoyancy of the air and the attraction of gravity. The mechanism for establishing this cooperation must have the minimum weight and offer the minimum head resistance. Starting with this principle, let us consider what improvements can be made in the present type of non-rigid airships" (p. 1).
Date: November 1922
Creator: Stapfer
Item Type: Refine your search to only Report
open access

The Development of the Racing Airplane

Description: Report describing the development of the racing airplane and some of the types of airplanes that might be seen at the Detroit airplane races. The primary contribution of racing aircraft to general aircraft development is the modification in design that makes it possible to cut down the resistance to motion through the air.
Date: November 1922
Creator: Warner, Edward P.
Item Type: Refine your search to only Report
open access

The Elimination of Dead Center in the Controls of Airplanes With Thick Sections

Description: "In several instances where control flaps are placed in the trailing edges of thick sections, it has appeared that a dead center (slackness or lack of control) exists about the neutral position. The condition was also experienced in the rudder action of the XB1A observation airplane. Examination of smoke pictures of the airflow around struts and airfoils indicates what may be the cause of the phenomenon" (p. 1).
Date: November 1922
Creator: Carroll, Thomas
Item Type: Refine your search to only Report
open access

How to Lay Out and Build an Airplane Landing Field: Notes on Shape and Size of Plot, Runway Details, Type and Arrangement of Buildings, Drainage of Field, Best Kind of Grass and Proper Marking to Aid Pilots

Description: Report presenting a description of considerations that go into the layout and building of an aircraft landing field or airstrip. Some of the elements considered include the shape and size of the plot, general arrangement, buildings present near the airstrip, runways, grass, roadways and railroad tracks, field markings, and some miscellaneous factors are provided.
Date: November 1922
Creator: Black, Archibald
Item Type: Refine your search to only Report
open access

Lessons of the Glider Meets

Description: Report describing some information that has been learned from three different glider meets. While light loading was assumed to be the optimal conformation from previous meets, subsequent meets have shown that heavier loading produced better results.
Date: November 1922
Creator: Warner, Edward P.
Item Type: Refine your search to only Report
open access

Location of Center of Pressure of Airplane Wings

Description: Data obtained in the Gottingen Aerodynamic Laboratory give considerable detail on the resulting air force moment exerted on various wing sections at different angles of attack. The Gottingen data can serve well to test the hydrodynamic theory, which (on the assumption of uniform motion and hence of infinitely wide wings) renders it possible to compute this moment as a function of the angle of attack. The Gottigen data can well serve to test the theory and it may be noted that experiment and com… more
Date: November 1922
Creator: Mises
Item Type: Refine your search to only Report
open access

Method Rendering It Possible, in Testing Airplane Wing Models at the Eiffel Laboratory, to Obtain Comparable Polars, Whether the Supports Are Attached to the Upper or Lower Side of Model

Description: Report presenting an examination of the errors that result from testing an aircraft model and applying the results to full-sized airplanes. An investigation is carried out to determine how to obtain comparable polars regardless of whether the supports are attached to the upper or lower side of the model.
Date: November 1922
Creator: Eiffel, G.
Item Type: Refine your search to only Report
open access

The Organization of Airways

Description: An aircraft freed from all contact with the ground during most of the period of its operation, is nevertheless dependent on the provision of proper ground organization. The provision of landing fields scattered over the country for the benefit of civil or military pilots who may arrive from any direction constitutes the first step in making commercial flying possible.
Date: November 1922
Creator: Warner, Edward P.
Item Type: Refine your search to only Report
open access

A Preliminary Study of Airplane Performance

Description: Flight tests were carried out at the Langley Field laboratory of the NACA, on several airplanes for the purpose of determining their relative performance with the same engine and the same propeller. The method used consisted in flying each airplane on a level course and measuring the airspeed for the whole range of engine revolutions. In general the results show that a small change in the wing section or the wing area has but a slight effect upon the performance, but changes in those parts whic… more
Date: November 1922
Creator: Norton, F. H. & Brown, W. G.
Item Type: Refine your search to only Report
open access

Principle of the Boerner Airship

Description: "The Boerner airship is built on entirely different principles from ordinary airships, of which the Zeppelin is the best known type. Mr. Boerner has abandoned the rigid body of the Zeppelin and has adopted a body with a double keel forming a rigid platform for attaching the gas ballonets, which must support the whole in the air" (p. 1).
Date: November 1922
Creator: Kapteyn, A.
Item Type: Refine your search to only Report
Back to Top of Screen