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Development of Light and Small Airplanes

Description: Memorandum presenting an overview of the development of light and small airplanes. Some of the characteristics explored include the development of airplanes of medium weight, development in countries other than Germany, development of light airplanes, general constructive fiducial lines, safety problems, the economy problem, and some special structural considerations are provided.
Date: July 1926
Creator: Lachmann, G.
Item Type: Refine your search to only Report
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First Experiences With the Rotating Laboratory

Description: This report describes experiences with a rotating cylinder to explore the effects of motion and flow upon human sensory organs. One observation was that the variation of the resultant line of gravity (from gravity and centrifugal force) was not felt so strongly as might be expected. The impressions produced by the physical effects on the members of the body, especially the ones caused by the deflecting force (Coriolis force), are exactly what the laws of physics would lead us to expect, althoug… more
Date: July 1926
Creator: Prandtl, L.
Item Type: Refine your search to only Report
open access

Improving the Performance of a Compression Ignition Engine by Directing Flow of Inlet Air

Description: "The object of this report is to present the results of tests performed by the National Advisory Committee for Aeronautics to determine the effect on engine performance of directing the flow of the inlet air to a 5-inch by 7-inch cylinder, solid injection, compression ignition engine, After a few preliminary tests, comparative runs were made at a speed of 1500 r.p.m. with and without directed air flow. It was found that directing the flow of the inlet air toward the fuel injection valve gave st… more
Date: July 1926
Creator: Kemper, Carlton
Item Type: Refine your search to only Report
open access

The New De Havilland Commercial Airplane: The D.H. 66 With Three Bristol "Jupiter" Engines

Description: The D.H. 66, constructed at Stag Lane Works of the De Haviland Aircraft Company built for Imperial Airways, Ltd. The fuselage has an all steel construction while the wings are made with box spars of wood and spruce ribs. It has a biplane tail and encloses the stabilizer trimming gear in a casing which serves to streamline the rear portion of the fuselage, but which is not part of the main structure. It weighs 9060 lbs. empty and 2500 lbs. after fueling with a total loaded weight of 14,700 lbs.
Date: July 1926
Item Type: Refine your search to only Report
open access

On the Knocking of Gasoline Engines

Description: Report presenting an investigation of the phenomenon of knocking in gasoline engines and some of the problems that it may cause. It is of the greatest importance, not only for automobile engines, but also for every other kind of internal combustion engine, since it limits the degree of compression and the thermal efficiency and its investigation indicates ways for saving fuel.
Date: July 1926
Creator: Richter, Ludwig
Item Type: Refine your search to only Report
open access

Tests of Several Bearing Materials Lubricated by Gasoline

Description: "This investigation on the relative wear of several bearing materials lubricated by gasoline was conducted at the Langley Memorial Aeronautical Laboratory, as part of a general research on fuel injection engines for aircraft. The specific purpose of the work was to find a durable bearing material for gear pumps to be used for the delivery of gasoline and diesel engine fuel oil at moderate pressures to the high pressure pumps of fuel injection engines" (p. 1).
Date: July 1926
Creator: Joachim, W. F. & Case, Harold W.
Item Type: Refine your search to only Report
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