National Advisory Committee for Aeronautics (NACA) - 10 Matching Results

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Behm Acoustic Sounder for Aircraft

Description: The Behm acoustic sounder for aircraft enables the barometric determination for the altitude by night or fog and therefore promises to prove of great importance in safeguarding air traffic.
Date: January 1926
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculation of Tubular Radiators of the Automobile Type

Description: "We propose to show how to calculate the cooling capacity of all radiators through which the air flows in separate streamlets, whether enclosed in actual tubes or not and whatever cross-sectional shape the tubes may have. The first part will give the fundamental principles for calculating velocity of air in the tubes and the heat exchange by radiation, conduction and convection, and show, by examples, the agreement of the calculation with experiments. In the second part, the effect of the dimen… more
Date: January 1926
Creator: Richter, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Characteristics of a boat type seaplane during take-off

Description: This report, on the planing and get-away characteristics of the F-5-L, gives the results of the second of a series of take-off tests on three different seaplanes conducted by the National Advisory Committee for Aeronautics at the suggestion of the Bureau of Aeronautics, Navy Department. The single-float seaplane was the first tested and the twin-float seaplane is to be the third. The characteristics of the boat type were found to be similar to the single float, the main difference being the inc… more
Date: January 1926
Creator: Crowley, J. W., Jr. & Ronan, K. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Photographic Time Studies of Airplane Paths

Description: The object of this report is the description of a method which seems to be practicable for determining the path of an airplane, especially in taking off and landing. This report tells how, by means of a camera, preferably a kinetograph, which simultaneously photographs a stop watch the distance of an airplane from the camera and its height above the ground can be determined.
Date: January 1926
Creator: Von Baumhauer, A. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Removing boundary layer by suction

Description: "Through the utilization of the "Magnus effect" on the Flettner rotor ship, the attention of the public has been directed to the underlying physical principle. It has been found that the Prandtl boundary-layer theory furnishes a satisfactory explanation of the observed phenomena. The present article deals with the prevention of this separation or detachment of the flow by drawing the boundary layer into the inside of a body through a slot or slots in its surface" (p. 1).
Date: January 1926
Creator: Ackeret, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Spacing of Orifices for the Measure of Pressure Distributions

Description: "The following report has been prepared for publication by the NACA. Suitable locations of orifices for the measurement of pressure distributions have been discussed. Tables are given for quickly laying out these locations and for quickly and easily computing the resultant air forces from the result of the measurements" (p. 1).
Date: January 1926
Creator: Munk, Max M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Standard atmosphere - tables and data

Description: Detailed tables of pressures and densities are given for altitudes up to 20,000 meters and to 65,000 feet. In addition to the tables the various data pertaining to the standard atmosphere have been compiled in convenient form for ready reference. This report is an extension of NACA-TR-147.
Date: January 1926
Creator: Diehl, Walter S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A study of the effect of a diving start on airplane speed

Description: Equations for instantaneous velocity and distance flown are derived for an airplane which crosses the starting line of a speed course at a speed higher than that which can normally be maintained in horizontal flight. A specific case is assumed and calculations made for five initial velocities. Curves of velocity, average velocity, and distance flown are plotted against time for each case and analyzed. It is shown that the increase in average velocity due to a diving start may be very large for … more
Date: January 1926
Creator: Diehl, Walter S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Suggestions for Popularizing Civil Aviation

Description: The public generally is taking very little interest in the progress of Civil Aviation, and the time has come to educate the public in aeronautics and to make them realize the far-reaching importance of air transport. Briefly, the whole problem resolves itself into discovering and applying means for bringing some of the many aspects and effects of civil aviation into the everyday lives of the public. The report suggests three principal groups of methods: (1) Bring aviation into daily contact wit… more
Date: January 1926
Creator: Eliott-Lynn
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Two-Stroke-Cycle Engines for Airplanes

Description: Now that the two-stroke-cycle engine has begun to make its appearance in automobiles, it is important to know what services we have a right to expect of it in aeronautics, what conditions must be met by engines of this type for use on airplanes and what has been accomplished.
Date: January 1926
Creator: Jalbert, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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