British Certificates of Airworthiness (open access)

British Certificates of Airworthiness

This report details the rules and regulations for obtaining a British airworthiness certificate. Aircraft loading and construction are especially important.
Date: May 1921
Creator: unknown
System: The UNT Digital Library
Aerial Convention of October 13, 1919 (open access)

Aerial Convention of October 13, 1919

The aerial convention delegates are listed as well as the set of rules that were developed during the session.
Date: May 1922
Creator: Roper
System: The UNT Digital Library
Air traffic (open access)

Air traffic

This report presents a recounting of the steps taken by France to establish national and international regulation over air traffic.
Date: May 1922
Creator: Sudre, G.
System: The UNT Digital Library
Aviation and Insurance (open access)

Aviation and Insurance

This article considers some of the causes which hinder the development of aircraft insurance. Different risks are discussed as well as the causes of aircraft accidents. Pilot error, poor airdromes, weather conditions, poorly adapted airplanes, and engine failures are all examined and some conclusions are made.
Date: May 1922
Creator: Mayo, R. H.
System: The UNT Digital Library
The Choice of Air Routes (open access)

The Choice of Air Routes

The author lists rules for the development and planning of air routes. He uses as examples India and Texas, as well as discussing the need for more landing fields.
Date: May 1922
Creator: Warner, Edward P.
System: The UNT Digital Library
Mechanical Aids to Flight (open access)

Mechanical Aids to Flight

This report examines the great utility and safety of using instruments when flying. Instruments can be especially useful in conditions when the pilot has trouble spatially orienting himself.
Date: May 1922
Creator: Warner, Edward P.
System: The UNT Digital Library
Night Flying (open access)

Night Flying

Dr. Warner examines the utility and economy of flying at night when flying passengers. Some of the points discussed include lighted landing fields, the possibility of using airships, and the cost of landing fields.
Date: May 1922
Creator: Warner, Edward P.
System: The UNT Digital Library
Proposed Air Traffic Law (open access)

Proposed Air Traffic Law

This report presents a brief history of France's attempts to promulgate an internal air traffic law and then provides a draft of proposed national air traffic laws.
Date: May 1922
Creator: Ripert, Georges
System: The UNT Digital Library
Regulation of Air Traffic (open access)

Regulation of Air Traffic

The ways in which the international and internal French air traffic accords interact with each other is outlined in this report. The principal questions covered by the present legislation are as follows: 1) Conditions of safety which must be fulfilled by aircraft; 2) Licenses for members of the crew; 3) Traffic rules to be observed by French and foreign aircraft.
Date: May 1922
Creator: Devaluez
System: The UNT Digital Library
Stability of Airplanes (open access)

Stability of Airplanes

The author attempts to correct the misconception that piloting an airplane requires extraordinary skill and balance. He also tries to show that airplanes are extremely stable in flight. Some of the major points covered in this article include: automatic pilots, airplanes designed to be stable, and the reliance on mathematics to help in designing stable aircraft.
Date: May 1922
Creator: Warner, Edward P.
System: The UNT Digital Library
Subsidies for Air Transport (open access)

Subsidies for Air Transport

This article discusses the need for government subsidies to encourage the development of passenger and freight transport by air.
Date: 1922-05?
Creator: Warner, Edward P.
System: The UNT Digital Library
Technical Problems of Commercial Flying (open access)

Technical Problems of Commercial Flying

The technical requirements for commercial aircraft are listed, which include: safety, economy and comfort. The author lists various methods to increase these requirements in commercial aircraft.
Date: May 1922
Creator: Warner, Edward P.
System: The UNT Digital Library
Factors of Safety and Indexes of Static Tests (open access)

Factors of Safety and Indexes of Static Tests

The physical resistance of passengers in establishing an upper limit to the strength of airplane cells is examined and arguments and experiments are discussed.
Date: May 1923
Creator: Bailly, Le
System: The UNT Digital Library
Hydrodynamic tests for determining the take-off characteristics of seaplanes (open access)

Hydrodynamic tests for determining the take-off characteristics of seaplanes

The resistance of water, even at low speeds, may be such as to render it impossible to take off. For this type of aircraft, it is therefore especially important to determine the take-off characteristics. A new and simple graphical method is given and appears to be the only one for the complete solution of the problem.
Date: May 1923
Creator: Verduzio, R.
System: The UNT Digital Library
The new French high-speed wind tunnel (open access)

The new French high-speed wind tunnel

The plans for the wind tunnel at Issey-les-Moulineaux are discussed in relation to concerns about the Law of Similitude and propeller speed.
Date: May 1923
Creator: Robert
System: The UNT Digital Library
Rules and Regulations of the 1923 Rhon Soaring-Flight Contest (open access)

Rules and Regulations of the 1923 Rhon Soaring-Flight Contest

Memorandum describing the rules and regulations of the 1923 Rhön Soaring-Flight Contest. The requirements of the aircraft, pilot and competitor requirements, and prizes are provided.
Date: May 1923
Creator: unknown
System: The UNT Digital Library
Speed Limits of Aircraft (open access)

Speed Limits of Aircraft

This paper is restricted to the question of attainable speed limits and attacks the problem from different angles. Theoretical limits due to air resistance are presented along with design factors which may affect speed such as wing loads, wing areas, wing section shifting, landing speeds, drag-lift ratios, and power coefficients.
Date: May 1923
Creator: Everling, E.
System: The UNT Digital Library
Air-Flow Experiments (open access)

Air-Flow Experiments

This report describes the apparatus used to take air-flow photographs. The photographs show chiefly the spiral course of the lines of flow near the tip of the wing. They constitute therefore a visual presentation of the phenomena covered by airfoil theory.
Date: May 1924
Creator: Wieselsberger, C.
System: The UNT Digital Library
Light Airplanes Which Participated in Contest at Lympne, England, October, 1923 (open access)

Light Airplanes Which Participated in Contest at Lympne, England, October, 1923

"The purpose of this memorandum is to present in a concise form a description, with drawings, of the most practical light airplanes participating in the meet at Lympne, England, in October, 1923. Features, which are particularly suitable for this type of aircraft, are described and a special reference is made to achievements which indicate progress and possibilities both from a commercial and a military point of view" (p. 1).
Date: May 1924
Creator: unknown
System: The UNT Digital Library
Ultra-Light Alloys and Their Utilization on Aircraft (open access)

Ultra-Light Alloys and Their Utilization on Aircraft

Memorandum presenting an overview of ultra-light alloys and their potential use on an aircraft. A definition of ultra-light alloys, some of the present possibilities of ultra-light alloys, and some of the principles governing the use of the alloys in aircraft are provided.
Date: May 1924
Creator: Portevin, A. M. & DeFleury, R.
System: The UNT Digital Library
Wind Tunnel Tests of Correction Formula for Wings of Large Span (open access)

Wind Tunnel Tests of Correction Formula for Wings of Large Span

The theory (wing experiments in an artificial air stream are subject to error, due to the fact that the wing is not situated in an unlimited body of air) by means of which the given drag correction was obtained, was based on various assumptions (e.g., elliptical distribution of lift) which do not always hold true. For this reason it was desirable to test the equation for the additional drag in regard to its reliability and range of application.
Date: May 1924
Creator: Wieselsberger, C.
System: The UNT Digital Library
Alloys Similar to Duralumin Made in Other Countries Than Germany (open access)

Alloys Similar to Duralumin Made in Other Countries Than Germany

Attempts by other countries to develop patents for alloys similar to duralumin are presented. Duralumin is aluminum alloyed with 3.5-4.5% copper, 0.5% magnesium, and 0.25-1% of manganese. A description of various materials that some have attempted to patent are provided.
Date: May 1925
Creator: Meissner, K. L.
System: The UNT Digital Library
European Commercial Aeronautics (open access)

European Commercial Aeronautics

"During the months of June to September, 1924, I personally visited the principal airports of Europe and traveled as a passenger some 6500 air miles on English, French, Romanian, Polish, German and Dutch air lines in order to investigate the development of commercial aviation abroad. The results of the investigation are embodied in a series of reports, of which a summary of the general findings is given below" (p. 1).
Date: May 1925
Creator: Van Zandt, J. Parker
System: The UNT Digital Library
The Problem of Fuel Measurement: The Schiske "Konsummeter" (open access)

The Problem of Fuel Measurement: The Schiske "Konsummeter"

Any measuring device, which immediately indicates the rate of fuel consumption in the desired units, has the advantage of saving considerable time and fuel, besides facilitating the adjustment of the carburetor. The Schiske "Konsummeter" (made by the "PS-Vergaser and Apparatebau A. G.") was designed from the above viewpoint.
Date: May 1925
Creator: Praetorius, K. R. H.
System: The UNT Digital Library