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Analysis of TH( NO3 ) -Ca( NO3 )2 –HNO3 Solutions

Description: Abstract. Methods of analysis for thorium, calcium, and nitric acid in solutions from thorium extraction purification columns are described and the results and errors are outlined. A brief description of methods of analysis that were not successful is included.
Date: December 20, 1945
Creator: Warf, James C.; Patterson, J. H. & Banks, Charles V.
Item Type: Refine your search to only Report
open access

Analysis of V-G Records From the SNJ-4 Airplane

Description: Report discusses an attempt to adapt a method of analysis of V-G data to predict the occurrences of large values of airspeed and acceleration from an SNJ-4 airplane; the data are presented as "flight envelopes". The flight envelopes "predict that, on average, in a stated number of flight hours, one airspeed, one positive acceleration, and one negative acceleration will exceed the envelope with equal probability of the accelerations being experienced at any airspeed" (from Discussion). The analy… more
Date: December 1945
Creator: Wilkerson, M. & Bennett, S. A.
Item Type: Refine your search to only Report
open access

Bending-Torsion Flutter Calculations Modified by Subsonic Compressibility Corrections

Description: From Summary: "A number of calculations of bending-torsion wing flutter are made at two Mach numbers, m=0 (incompressible case) and m=0.7, and results are compared. The air forces employed for the case of m=0.7 are based on Frazer's recalculation of Possio's results, which are derived on the assumption of small disturbances to the main flow. For ordinary wings of normal density and of low bending frequency in comparison with torsion frequency, the compressibility correction to the flutter speed… more
Date: December 18, 1945
Creator: Garrick, I. E.
Item Type: Refine your search to only Report
open access

Calculations of Economy of 18-Cylinder Radial Aircraft Engine With Exhaust-Gas Turbine Geared to the Crankshaft at Cruising Speed

Description: Report presenting calculations based on dynamometer test-stand data on an 18-cylinder radial engine made to determine the improvement in fuel consumption that can be obtained by gearing an exhaust-gas turbine to the engine crankshaft in order to increase the engine shaft work.
Date: December 1945
Creator: Hannum, Richard W.
Item Type: Refine your search to only Report
open access

Calculations of the Performance of a Compression-Ignition Engine-Compressor Turbine Combination 1: Performance of a Highly Supercharged Compression-Ignition Engine

Description: From Summary: "Small high-speed single-cylinder compression-ignition engines were tested to determine their performance characteristics under high supercharging. Calculations were made on the energy available in the exhaust gas of the compression-ignition engines. The maximum power at any given maximum cylinder pressure was obtained when the compression pressure was equal to the maximum cylinder pressure. Constant-pressure combustion was found possible at an engine speed of 2200 rpm."
Date: December 1945
Creator: Sanders, J. C. & Mendelson, Alexander
Item Type: Refine your search to only Report
open access

The Chlorination of TO₃

Description: Abstract: The applicability of specific mixtures and organic chlorocarbons in general toward the chlorination of TO₃ has been tested by means of reactions is sealed glass tubes. The results show that thionyl chloride mixed with tetrachloroethylene or a bromothane of the tyoe CHBrC12 will produce TCI4 directly. This same result is produced by CBr2C12 alone.
Date: December 28, 1945
Creator: Gavlin, Gilbert; Hubbard, J. V. & Clewett, G. H.
Item Type: Refine your search to only Report
open access

Column Strength of Extruded Magnesium Alloys AM-C58S and AM-C58S-T5

Description: "Tests have previously been made to determine the column strength of magnesium alloy AM-C58S-T5 extruded rod, but these few data were not considered a satisfactorily wide basis for establishing a general formula for the column strength of this alloy. It was therefore decided to make additional tests on a number of extruded sections of magnesium alloy AM-C58S-T5 with some tests on AM-C58S for comparison" (p. 1).
Date: December 1945
Creator: Leary, J. R. & Holt, Marshall
Item Type: Refine your search to only Report
open access

The effect of concentrated loads on flexible rings in circular shells

Description: Report presenting a method of making strain measurements on a series of circular cylinders with reinforcing rings, subjected to concentrated loads, in which the bending stiffness of the rings was varied systematically over a wide range. Results regarding the general remarks, bending-moment coefficient, and skin shear coefficients are provided.
Date: December 1945
Creator: Kuhn, Paul; Duberg, John E. & Griffith, George E.
Item Type: Refine your search to only Report
open access

Effect of Propeller-Axis Angle of Attack on Thrust Distribution Over the Propeller Disk in Relation to Wake-Survey Measurement of Thrust

Description: "Tests were made to investigate the variation of thrust distribution over the propeller disk with angle of pitch of the propeller thrust axis and to determine the disposition and the minimum number of rakes necessary to measure the propeller thrust. The tests were made at a low Mach number for a low and a high blade angle with the propeller operating at three small angles of pitch, and some of the tests were repeated at a higher Mach number. The data obtained show that, for small angles of pitc… more
Date: December 1945
Creator: Pendley, Robert E.
Item Type: Refine your search to only Report
open access

Effect of stainless steel thimbles on pile reactivity

Description: Failure of a vertical safety rod thimble at 105-B has led to consideration of a stainless steel (SS) thimble as replacement. 1/16 in. SS would result in 4% loss in control power of that safety rod. If all thimbles were replaced by 1/16 in. SS, there would be a reactivity loss of 790 ih.
Date: December 14, 1945
Creator: Marshall, L. W.
Item Type: Refine your search to only Report
open access

Effects of Wing and Nacelle Modifications on Drag and Wake Characteristics of a Bomber-Type Airplane Model

Description: Report presenting an investigation of a model of a large four-engine bomber to determine the effects of several wing and nacelle modifications on drag characteristics and airflow characteristics at the tail. Leading-edge gloves, trailing-edge extensions, and modified nacelle afterbodies were all tested. Results regarding flow characteristics at the wing during flight and at the landing condition, flow characteristics at the tail, and longitudinal stability characteristics are provided.
Date: December 1945
Creator: Neely, Robert H.; Fairbanks, Richard W. & Conner, D. William
Item Type: Refine your search to only Report
open access

Fatigue Strength of Flush-Riveted Joints for Aircraft Manufactured by Various Riveting Methods

Description: Report presenting the results of an investigation to determine the fatigue strength of flush-riveted joints manufactured by different riveting methods. Tests were made on a direct stress fatigue machine at room temperature. The results showed that the fatigue strength of the joints was directly affected by the method of riveting used.
Date: December 1945
Creator: Maney, G. A. & Wyly, L. T.
Item Type: Refine your search to only Report
open access

A flight investigation of NACA aileron modifications for the improvement of the lateral control characteristics of a high-speed fighter airplane

Description: Report presenting a flight investigation to improve the lateral control of a high-speed fighter airplane. Testing occurred with the original ailerons and a set of modified ailerons, which consisted of an increased balance chord and increased nose radius. The modified ailerons appear to offer a solution to the problem of aileron overbalance and oscillation in high-speed dives.
Date: December 1945
Creator: Williams, Walter C.
Item Type: Refine your search to only Report
open access

History of operations, 1 January 1944--20 March 1945

Description: The objectives of Hanford operations are the production of sufficient quantities of plutonium and secondary products in time to meet adequately military requirements at the lowest cost of manpower, money, and materials commensurate with the maximum degree of certainty in attaining the objectives. The facilities operations at Hanford are described.
Date: December 31, 1945
Item Type: Refine your search to only Report
open access

Laboratory Investigation of Icing in the Carburetor and Supercharger Inlet Elbow of an Aircraft Engine 1: Description of Setup and Testing Technique

Description: Report discussing icing and de-icing of the carburetor and supercharger inlet of typical aircraft engine induction systems. A description of the systems used to control and simulate different conditions is provided.
Date: December 1945
Creator: Mulholland, Donald R.; Rollin, Vern G. & Galvin, Herman B.
Item Type: Refine your search to only Report
open access

Laboratory Investigation of Icing in the Carburetor and Supercharger Inlet Elbow of an Aircraft Engine 2: Determination of the Limiting-Icing Conditions

Description: "The carburetor and engine-stage supercharger assembly of a fighter aircraft were laboratory-tested to determine the icing characteristics of the induction system under three simulated engine power conditions with varying carburetor-air temperature, relative humidity, simulated-rain injection, rain and fuel temperature, fuel-air ratio, and fuel of different distillation characteristics" (p. 1).
Date: December 1945
Creator: Essex, Henry A.; Keith, Wayne C. & Mulholland, Donald R.
Item Type: Refine your search to only Report
open access

Laboratory Investigation of Icing in the Carburetor and Supercharger Inlet Elbow of an Aircraft Engine 3: Heated Air as a Means of De-Icing the Carburetor and Supercharger Inlet Elbow

Description: Report discussing the use of a twin-barrel injection carburetor and a supercharger inlet elbow to establish the relation between wet- and dry-bulb temperatures of the de-icing air and time required to recover from air-flow loss due to icing. The tests were performed at several power conditions, icing conditions, temperatures, and dry and humidified air. De-icing time was found to be a function of the nature of the ice formation and of the wet-bulb temperature of the de-icing air.
Date: December 1945
Creator: Lyons, Richard E. & Coles, Willard D.
Item Type: Refine your search to only Report
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