Aeronautical Record: No. 1 (to June, 1923) (open access)

Aeronautical Record: No. 1 (to June, 1923)

Memorandum presenting an overview of the development of aeronautical industries and commercial aircraft as well as some of the problems that are resulting from it. Details of the aeronautical budget in various countries, organization of the air service, material exports, and airline operations are provided.
Date: December 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
Note on a New and Simple Method of Dead Reckoning in Aerial Navigation (open access)

Note on a New and Simple Method of Dead Reckoning in Aerial Navigation

Memorandum presenting a method of calculating the dead reckoning in aerial navigation.
Date: November 1923
Creator: Constantin, Louis
System: The UNT Digital Library
Nieuport-Astra Parachute Contest (open access)

Nieuport-Astra Parachute Contest

Report presenting a description of a parachute design contest. The object of this contest was to obtain a parachute of light weight and small bulk, suitable for airplanes. The primary areas of focus were safety, ability to be installed on airplanes, speed, materials, and behavior of the parachutes in the air.
Date: October 1923
Creator: Philippe, J.
System: The UNT Digital Library
Possibility of Profitable Air Traffic Between Lisbon and Rio De Janeiro (open access)

Possibility of Profitable Air Traffic Between Lisbon and Rio De Janeiro

Different aspects of an airship line between Lisbon and Rio de Janeiro are presented. Some of the factors discussed are: the number of passengers, fuel consumption, design, itinerary, airports, flight times, and income.
Date: November 1923
Creator: Sherz, Walter
System: The UNT Digital Library
Technical Section of Aeronautics (open access)

Technical Section of Aeronautics

The duties of the Technical Section are listed along with facilities for testing. Different categories of tests are discussed and some sample results included.
Date: February 1923
Creator: Lesage, André
System: The UNT Digital Library
Longitudinal Balancing of Airplanes (open access)

Longitudinal Balancing of Airplanes

The object of the present communication is to determine the best method for locating the center of lift of an airplane and to provide a method for making corrections. The method employed is very simple, being based on the positions given the elevator during flights at different speeds.
Date: February 1923
Creator: Eteve, Albert
System: The UNT Digital Library
Engines and Fuels (open access)

Engines and Fuels

The report considers the effect on engines of the varying types of fuels now in use. Different types of fuels are examined and the influence of physical characteristics are considered.
Date: August 1923
Creator: unknown
System: The UNT Digital Library
Vorticism in Aeronautics (open access)

Vorticism in Aeronautics

Since the war there has been a considerable advance in knowledge on the subject of the airfoil and its behavior. The theory is now sufficiently advanced to make it possible to predict and to calculate certain results which previously could only be attained by direct experiment. The vortex theory receives special attention.
Date: August 1923
Creator: Sayers, W. H.
System: The UNT Digital Library
"Schneebeli" and "Birger" Silencers (open access)

"Schneebeli" and "Birger" Silencers

The Schneebeli silencer is made entirely of soft sheet steel. It is connected with the engine for receiving the exhaust gases, and consists of two parts: the silencer proper and a conical exit. The Birger silencer, made by the Ad Astra Company in Switzerland, is based on the principle of rapid cooling of the exhaust gases.
Date: June 1923
Creator: Dollfus, Charles
System: The UNT Digital Library
Use of Helium in Airships (open access)

Use of Helium in Airships

Economic and safety factors are discussed in relation to a switch from hydrogen to helium in airships.
Date: June 1923
Creator: Crocco, G. Arturo
System: The UNT Digital Library
Safety Factors in Aviation (open access)

Safety Factors in Aviation

A formula for calculating the safety of airplanes is given and the stresses on airplane components are calculated. Some questions regarding the information obtained from the formula and its application to safe airplane design for pilots are provided.
Date: April 1923
Creator: Bleriot, Louis
System: The UNT Digital Library
Replacing the Weight of Materials Consumed on Airships (open access)

Replacing the Weight of Materials Consumed on Airships

Two methods to replace the weight of gas lost on long airship flights are discussed: condensing the water of combustion and thermic sustentation. In the present article we will discuss the first method, leaving the second to be examined in a subsequent article.
Date: June 1923
Creator: Crocco, G. A.
System: The UNT Digital Library
Evolution of the Helicopter (open access)

Evolution of the Helicopter

Report presenting an investigation of problems related to helicopters. Also included are the history of the evolution of the helicopter and a series of propeller experiments.
Date: March 1923
Creator: Balaban, Karl
System: The UNT Digital Library
Absorbing landing shocks (open access)

Absorbing landing shocks

Report discussing tires, steel springs, hydraulic shock absorbers, and axle travel are all examined in relation to absorbing landing shocks.
Date: August 1923
Creator: Warner, Edward P.
System: The UNT Digital Library
Inherent Stability of Helicopters (open access)

Inherent Stability of Helicopters

The equilibrium, in still air, of a "stationary" helicopter (i.e., of one having neither vertical nor translational velocity, but a tendency to remain practically motionless within restricted limits of space) presents some difficulty in practice and justifies a theoretical investigation of its "inherent stability," i.e., independent of the pilot.
Date: October 1923
Creator: Crocco, G. Arturo
System: The UNT Digital Library
Rigid Airships (open access)

Rigid Airships

Memorandum presenting the history and development of airships. Tables containing information and statistics regarding some of the current airships are provided.
Date: November 1923
Creator: Stahl, Friedrich
System: The UNT Digital Library
Monoplanes or Biplanes? (open access)

Monoplanes or Biplanes?

This article presents a discussion of the relative merits between monoplanes and biplanes. A comparison of the aerodynamic qualities and advantages of both types are provided.
Date: November 1923
Creator: Warner, Edward P.
System: The UNT Digital Library
Factors of Safety (open access)

Factors of Safety

Factors of safety serve three purposes: provides against trouble arising from unexpectedly large loads, allows for imperfections of workmanship, represents a depreciation allowance. A consideration of these safety factors is provided in this report.
Date: December 1923
Creator: Warner, Edward P.
System: The UNT Digital Library
Seaplanes for Commerce (open access)

Seaplanes for Commerce

The advantages of using seaplanes for commercial purposes is discussed. The three primary advantages described include their superior speeds over existing means of transport on the same routes, the available landing fields when flying over the water, and the reduction of distance from the airport to the city is serves due to the seaplane's ability to land in water.
Date: March 1923
Creator: Warner, Edward P.
System: The UNT Digital Library
My Experience With Helicopters (open access)

My Experience With Helicopters

The author recounts his experiments with helicopters. The object of his investigations was to remain stationary in the air for five minutes and to make a closed flight at low altitude. Some of the topics discussed include stabilization, horizontal flight, and directional control.
Date: April 1923
Creator: Oemichen, Etienne
System: The UNT Digital Library
Wind-Driven Propellers (Or "Windmills") (open access)

Wind-Driven Propellers (Or "Windmills")

Wind-driven propellers are much used as sources of power for equipment such as radios. This report establishes the principles involved and acquaints the reader with rules for design of such windmills.
Date: April 1923
Creator: Munk, Max M.
System: The UNT Digital Library
Wind Tunnel of Zeppelin Airship Company (open access)

Wind Tunnel of Zeppelin Airship Company

This report discusses the general considerations for the design of aerodynamic laboratories. The dimensions, construction, and components of the wind tunnel are given special attention.
Date: April 1923
Creator: Munk, Max M.
System: The UNT Digital Library
New Albatross Commercial Airplane "L 58" (open access)

New Albatross Commercial Airplane "L 58"

The "L 58" is a monoplane with cantilever wings joined directly to the fuselage. It accordingly belongs to the new school of airplane construction, as founded and developed in Germany. A list of performance characteristics is included.
Date: March 1923
Creator: Meyer, G.
System: The UNT Digital Library