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Adaptation of aeronautical engines to high altitude flying

Description: Report discussing Issues and techniques relative to the adaptation of aircraft engines to high altitude flight. Covered here are the limits of engine output, modifications and characteristics of high altitude engines, the influence of air density on the proportions of fuel mixtures, methods of varying the proportions of fuel mixtures, the automatic prevention of fuel waste, and the design and application of air pressure regulators to high altitude flying. Summary: 1. Limits of engine output. 2.… more
Date: May 1923
Creator: Kutzbach, K.
Item Type: Refine your search to only Report
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Aerial photography : obtaining a true perspective

Description: Report discussing a demonstration was given within the last few days at the British Museum by Mr. J. W. Gordon, author of "Generalized Linear Perspective" (Constable and Co.), a work describing a newly-worked-out system by which photographs can be made available for the purpose of exactly recording the dimensions of the objects photographed even when the objects themselves are presented foreshortened in the photograph.
Date: April 1923
Creator: United States. National Advisory Committee for Aeronautics.
Item Type: Refine your search to only Report
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Aerodynamic Characteristics of Aerofoils 2: Continuation of Report No. 93

Description: "This collection of data on aerofoils has been made from the published reports of a number of the leading aerodynamic laboratories of this country and Europe. The information which was originally expressed according to the different customs of the several laboratories is here presented in a uniform series of charts and tables suitable for the use of designing engineers and for purposes of general reference. The absolute system of coefficients has been used, since it is thought by the National A… more
Date: 1923~
Item Type: Refine your search to only Report
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The Aerodynamic Properties of Thick Airfoils 2

Description: "This investigation is an extension of NACA report no. 75 for the purpose of studying the effect of various modifications in a given wing section, including changes in thickness, height of lower camber, taper in thickness, and taper in plan form with special reference to the development of thick, efficient airfoils. The method consisted in testing the wings in the NACA 5-foot wind tunnel at speeds up to 50 meters (164 feet) per second while they were being supported on a new type of wire balanc… more
Date: 1923%
Creator: Norton, F. H. & Bacon, D. L.
Item Type: Refine your search to only Report
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Aeronautic instruments. Section 2: altitude instruments

Description: This report is Section two of a series of reports on aeronautic instruments (Technical Report nos. 125 to 132, inclusive). This section discusses briefly barometric altitude determinations, and describes in detail the principal types of altimeters and barographs used in aeronautics during the recent war. This is followed by a discussion of performance requirements for such instruments and an account of the methods of testing developed by the Bureau of Standards. The report concludes with a brie… more
Date: 1923?
Creator: Mears, A. H.; Henrickson, H. B. & Brombacher, W. G.
Item Type: Refine your search to only Report
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Aeronautic Instruments Section 3: Aircraft Speed Instruments

Description: Part 1 contains a discussion and description of the various types of air speed measuring instruments. The authors then give general specifications and performance requirements with the results of tests on air speed indicators at the Bureau of Standards. Part 2 reports methods and laboratory apparatus used at the Bureau of Standards to make static tests. Methods are also given of combining wind tunnel tests with static tests. Consideration is also given to free flight tests. Part 3 discusses the… more
Date: 1923?
Creator: Hunt, Franklin L. & Stearns, H. O.
Item Type: Refine your search to only Report
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Aeronautic Instruments Section 4: Direction Instruments

Description: Part one points out the adequacy of a consideration of the steady state gyroscopic motion as a basis for the discussion of displacements of the gyroscope mounted on an airplane, and develops a simple theory on this basis. Part two describes a new type of stabilizing gyro mounted on top of a spindle by means of a universal joint, the spindle being kept in a vertical position by supporting it as a pendulum of which the bob is the driving motor. Methods of tests and the difficulties in designing a… more
Date: 1923%
Creator: Franklin, W. S.; Stillman, M. H.; Sanford, R. L.; Warner, John A. C.; Sylvander, R. C. & Rounds, E. W.
Item Type: Refine your search to only Report
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Aeronautic instruments. Section 5 : power plant instruments

Description: Part 1 gives a general discussion of the uses, principles, construction, and operation of airplane tachometers. Detailed description of all available instruments, both foreign and domestic, are given. Part 2 describes methods of tests and effect of various conditions encountered in airplane flight such as change of temperature, vibration, tilting, and reduced air pressure. Part 3 describes the principal types of distance reading thermometers for aircraft engines, including an explanation of the… more
Date: 1923
Creator: Washburn, G. E.; Sylvander, R. C.; Mueller, E. F.; Wilhelm, R. M.; Eaton, H. N. & Warner, John A. C.
Item Type: Refine your search to only Report
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Aeronautic instruments. Section 6 : aerial navigation and navigating instruments

Description: This report outlines briefly the methods of aerial navigation which have been developed during the past few years, with a description of the different instruments used. Dead reckoning, the most universal method of aerial navigation, is first discussed. Then follows an outline of the principles of navigation by astronomical observation; a discussion of the practical use of natural horizons, such as sea, land, and cloud, in making extant observations; the use of artificial horizons, including the… more
Date: 1923%
Creator: Eaton, H. N.
Item Type: Refine your search to only Report
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Aeronautic Instruments Section 6: Oxygen Instruments

Description: This report contains statements as to amount of oxygen required at different altitudes and the methods of storing oxygen. The two types of control apparatus - the compressed oxygen type and the liquid oxygen type - are described. Ten different instruments of the compressed type are described, as well as the foreign instruments of the liquid types. The performance and specifications and the results of laboratory tests on all representative types conclude this report.
Date: 1923%
Creator: Hunt, F. L.
Item Type: Refine your search to only Report
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Aeronautical Instruments

Description: Note presenting a number of instruments that can assist pilots with observing the position of the airplane. Some of the instruments include an inclinometer with stationary system of reference and an inclinometer with moving axes.
Date: June 1923
Creator: Bennewitz, Kurt
Item Type: Refine your search to only Report
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Aeronautical Record: No. 1 (to June, 1923)

Description: 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
Item Type: Refine your search to only Report
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Air Resistance Measurements on Actual Airplane Parts

Description: "For the calculation of the parasite resistance of an airplane, a knowledge of the resistance of the individual structural and accessory parts is necessary. The most reliable basis for this is given by tests with actual airplane parts at airspeeds which occur in practice. The data given here relate to the landing gear of a Siemanms-Schuckert DI airplane; the landing gear of a 'Luftfahrzeug-Gesellschaft' airplane (type Roland Dlla); landing gear of a 'Flugzeugbau Friedrichshafen' G airplane; a m… more
Date: November 1923
Creator: Weiselsberger, C.
Item Type: Refine your search to only Report
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The Altitude Effect on Air Speed Indicators - 2

Description: In an investigation described in NACA Technical Report 110, it was shown that under certain conditions, particularly for the relatively low-speed flight of airships, the data obtained were not sufficiently accurate. This report describes an investigation in which the data obtained were sufficiently accurate and complete to enable the viscosity correction to be deduced quantitatively for a number of the air-speed pressure nozzles in common use. The report opens with a discussion of the theory of… more
Date: 1923%
Creator: Eaton, H. N. & MacNair, W. A.
Item Type: Refine your search to only Report
open access

"Am" Gasoline Cock

Description: The "AM" cock was designed specially for gasoline pipes on vehicles using internal combustion engines (airplanes, airships, automobiles, tractors, battle "tanks", boats, etc.). The report descirbes the functioning and construction of the device.
Date: February 1923
Item Type: Refine your search to only Report
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Analysis of Dr. Schaffran's Propeller Model Tests

Description: Note presenting an analysis of the propeller model tests of Dr. Schaffran. Only the thrust is examined. The results indicate that the thrust produced by three-blade and four-blade propellers follows the same laws as with two-blade propellers, and that all conclusions reached from Dr. Durand's tests can be upheld.
Date: September 1923
Creator: Munk, Max M.
Item Type: Refine your search to only Report
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Analytical Methods for Certain Metals Including Cerium, Thorium, Molybdenum, Tungsten, Radium, Uranium, Vanadium, Titanium and Zirconium

Description: From Introduction: "This chapter indicates the methods of determining several of the alloy metals when occurring together in the same sample. Most materials seldom contain more than two or three of these elements, but considerable time may be saved if determinations can be combined. Details of the analyses and separations are not given here, as they have been covered more fully in other chapters. Whenever possible, reference is made to the particular chapter. Only sufficient directions have bee… more
Date: 1923
Creator: Moore, R. B.; Lind, S. C.; Marden, J. W.; Bonardi, J. P.; Davis, C. W. & Conley, J. E.
Item Type: Refine your search to only Report
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