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Summary of Airfoil Data

Description: From Summary: "The historical development of NACA airfoils is briefly reviewed. New data are presented that permit the rapid calculation of the approximate pressure distributions for the older NACA four-digit and five-digit airfoils by the same methods used for the NACA 6-series airfoils. The general methods used to derive the basic thickness forms for NACA 6 and 7-series airfoils together with their corresponding pressure distributions are presented. Detail data necessary for the application o… more
Date: 1945
Creator: Abbott, Ira H.; von Doenhoff, Albert E. & Stivers, Louis S., Jr.
Item Type: Refine your search to only Report
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Experimental and Theoretical Investigations of Cavitation in Water

Description: "The cavitation in nozzles on airfoils of various shape and on a sphere are experimentally investigated. The limits of cavitation and the extension of the zone of the bubbles in different stages of cavitation are photographically established. The pressure in the bubble area is constant and very low, jumping to high values at the end of the area. The analogy with the gas compression shock is adduced and discussed" (p. 1).
Date: May 1945
Creator: Ackeret, J.
Item Type: Refine your search to only Report
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Sweeping of Fission Gases from Solutions of U and Plutonium

Description: Technical report describing two experiments performed to compare the amounts of fission gases swept out of UNH solution with those amounts swept out of PU solution under idential condiditons. The charge wire technique was used. The essential date and the results are given in tables in the report.
Date: September 4, 1945
Creator: Adams, R. M. & Finkelstein, H.
Item Type: Refine your search to only Report
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Metal- and Nonmetal-Mine Accidents in the United States During the Calendar Year 1942 (Excluding Coal Mines)

Description: Report published by the U.S. Bureau of Mines regarding accidents at mines located in the United States for all operations except coal mines. The report includes statistics about the number and kinds of accidents as well as information about the mining operations (i.e., number of persons employed, average amount of work performed per person, etc.).
Date: 1945
Creator: Adams, William W. & Kennedy, F. J.
Item Type: Refine your search to only Report
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Tests of a 1/14-Scale Powered Model of the XB-36 Airplane in the Langley 19-Foot Pressure Tunnel 1: Stalling Characteristics and Aileron Effectiveness of Several Wing and Flap Arrangements

Description: Report discussing an investigation into the stalling characteristics, aileron effectiveness, and longitudinal stability of a scale model of the XB-36 airplane. The model was tested with the original configuration as well as with several modifications to the outboard panels and flap arrangement.
Date: February 1945
Creator: Alexander, S. R. & Sivells, James C.
Item Type: Refine your search to only Report
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General theory of airfoil sections having arbitrary shape or pressure distribution

Description: In this report a theory of thin airfoils of small camber is developed which permits either the velocity distribution corresponding to a given airfoil shape, or the airfoil shape corresponding to a given velocity distribution to be calculated. The procedures to be employed in these calculations are outlined and illustrated with suitable examples.
Date: 1945
Creator: Allen, H. Julian
Item Type: Refine your search to only Report
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An Experimental Investigation of Several Low-Drag Wing-Nacelle Combinations with Internal Air Flow

Description: From Summary: "The results of an experimental investigation of several low-drag wing-nacelle combinations, incorporating internal air-flow systems, are presented. The external-drag increments due to these nacelles are between one-half and two-thirds of those of conventional nacelle forms. This improvement is accomplished with only minor effects on the lift and moment characteristics of the wing. The procedure employed to determine the external shape of such low-drag nacelles is considered in de… more
Date: March 1945
Creator: Allen, H. Julian; Frick, Charles W. & Erickson, Myles D.
Item Type: Refine your search to only Report
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The Effect of Compression Ratio on Knock Limits of High-Performance Fuels in a CFR Engine 2: Blends of 2,2,3-Trimethylpentane with 28-R

Description: "The knock-limited performance of blends of 0,50; and 100 percent by volume of 2,2,3-trimethylpentane in 28-R fuel determined with a modified F-4 engine at three sets of conditions varying from severe to mild at each of three compression ratios (6.0, 8.0, and 10.0). A comparison of the knock-limited performance of 2,2,3-trimethylpentane with that of triptane (2,2,3-trimethylbutane) is included. The knock-Limited performance of 2,2,3-trimethylpontane was usually more sensitive to either compres… more
Date: January 1945
Creator: Alquist, Henry E. & Tower, Leonard K.
Item Type: Refine your search to only Report
open access

The Effect of Compression Ratio on Knock Limits of High-Performance Fuels in a CFR Engine 3: Blends of 2,3-Dimethylpentane With 28-R

Description: Report discussing the knock-limited performance of blends of 2,3-dimethylpentane and 23-R fuel in an F-4 engine at three sets of conditions and three compression ratios. The knock-limited performance of 2,3-dimethylpentane has about the same sensitivity to compression ratio and inlet-air temperature as 28-R fuel.
Date: February 10, 1945
Creator: Alquist, Henry E. & Tower, Leonard K.
Item Type: Refine your search to only Report
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Suitability of ethers as aviation fuel components the knock-limited performance of several ethers blended with AN-F-28 fuel

Description: Report presenting a investigation covering the physical and chemical properties of various ethers as components of aviation fuels. Their antiknock effectiveness and methods of preparation and purification are included. Methyl tert-butyl ether gave the best knock-limited rich mixture response, but isopropyl tert-butyl ether and di-tert-butyl ether gave better results at lean mixtures.
Date: January 1945
Creator: Alquist, Henry E. & Tower, Leonard K.
Item Type: Refine your search to only Report
open access

Fatigue Tests on 1/8-inch Aluminum Alloy Rivets

Description: Note presenting an investigation of the fatigue characteristics of riveted joints in aluminum alloy sheet. The purpose of this report is to summarize all the results of fatigue tests that have been made to date in the Aluminum Research Laboratories of lap joints with 1/8-inch aluminum alloy rivets.
Date: February 1945
Creator: Andrews, H. J. & Holt, M.
Item Type: Refine your search to only Report
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REPORT ON THE PROCESSING OF PITCHBLENDE

Description: A detailed description of the processing of pitchblende ores used at the Port Hope, Canada, refinery is given including both the recovery and purification of U and Fu. The health hazards present in the processing are discussed, and recommendations are made which will insure adequate health protection. (L.T.W.)
Date: February 26, 1945
Creator: Anonsen, S.H.
Item Type: Refine your search to only Report
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Bonding Strengths of Adhesives at Normal and Low Temperatures

Description: Note presenting a determination of the bonding strengths of two thermosetting adhesives, liquid Cycleweld C-3 and Ardux 1, to several aircraft materials using shear tests made on lap-joint specimens. The specimens were tested at 25 degrees Celsius and at subfreezing temperatures of approximately -40 degrees Celsius. Results regarding the specimens bonded under clamping pressure, specimens bonded after various surface treatments, specimens of metal bonded to plywood, and specimens of aluminum bo… more
Date: January 1945
Creator: Axilrod, B. M. & Jirauch, D. H.
Item Type: Refine your search to only Report
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Properties of some expanded plastics and other low-density materials

Description: Report presenting an investigation of various mechanical and physical properties of several expanded plastics and other low-density materials of interest for aircraft applications, such as heat insulation or the core of a sandwich material. The materials in the investigation included cellulose acetate plastic, polystyrene, a urea-formaldehyde resin, a zein product, hard rubber, balsa wood, and cellular glass.
Date: September 1945
Creator: Axilrod, Benjamin M. & Koenig, Evelyn
Item Type: Refine your search to only Report
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Analysis for Oxide in Thorium Metal

Description: Abstract. to estimate the oxygen picked up by thorium in casting a rapid method of running the acid insoluble content was developed. the quickest procedure consists of reacting with mixed acids, fuming with perchloric and filtration to separate the "free" thorium from the "combined". The precipitate is ignited and weighed as thorium dioxide.
Date: May 12, 1945
Creator: Ayers, A. S.
Item Type: Refine your search to only Report
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Analysis of Uranium-Manganese Alloys

Description: Introduction. the conventional procedures of analysis for uranium and manganese can be employed in the analysis of alloys of these metals. The alloys are reacted with perchloric acid and hydrogen peroxide, fumed to remove any chloride ions, diluted to volume and aliquots analyzed by redoximetry.
Date: October 5, 1945
Creator: Ayers, A. S.
Item Type: Refine your search to only Report
open access

Precipitation of Thorium Oxalate from Nitric Acid Solutions

Description: Introduction. It has been known for a long time that thorium is precipitated by oxalic acid in acid solutions, but a survey of the literature showed no study of the limits of the acidity and oxalic acid excess which yield quantitative results. V. I. Spitzin reports on the solubility of thorium oxalate in varying concentrations of several acids, but the effect of an excess oxalic acid is not included. Since solutions are sometimes presented for analysis that contain more than the recommended … more
Date: October 5, 1945
Creator: Ayers, A. S.
Item Type: Refine your search to only Report
open access

The development and application of high-critical-speed nose inlets

Description: From Summary: "An analysis of the nose-inlet shapes developed in previous investigations to represent the optimum from the standpoint of critical speed has shown that marked similarity exists between the nondimensional profiles of inlets which have widely different proportions and critical speeds. With the nondimensional similarity of such profiles established, the large differences in the critical speeds of these nose inlets must be a function of their proportions. An investigation was underta… more
Date: July 1945
Creator: Baals, Donald D.; Smith, Norman F. & Wright, John B.
Item Type: Refine your search to only Report
open access

The development and application of high-critical-speed nose inlets

Description: From Summary: "An analysis of the nose-inlet shapes developed in previous investigations to represent the optimum from the standpoint of critical speed has shown that marked similarity exists between the nondimensional profiles of inlets which have widely different proportions and critical speeds. With the nondimensional similarity of such profiles established, the large differences in the critical speeds of these nose inlets must be a function of their proportions. An investigation was underta… more
Date: June 8, 1945
Creator: Baals, Donald D.; Smith, Norman F. & Wright, John B.
Item Type: Refine your search to only Report
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