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Circumventing chloride ion trouble Columbia River water

Description: This report contains data acquired during sampling of the Columbia River water on March 26, 1945. Topics of discussion include; the elevation of chlorine levels from 4 ppm to 20 ppm, what steps should be taken to remediate the problem, and the various processes that were taken into consideration for the clean up of this chlorine. Separation processes considered include; ion exchange, distillation, precipitation, heat exchange, and recirculation through a cooling tower.
Date: March 26, 1943
Creator: Worthington, H.
Item Type: Refine your search to only Report
open access

Comparative Yields of Light Oil, Tar, and Constituents from Carbonization Tests at 800 Degrees, 900 Degrees, and 1,000 Degrees Celsius

Description: Report issued by the U.S. Bureau of Mines on testing done on a variety of American coals collected from 32 coal beds across the country. The carbonizing properties of samples tested at 3 different temperatures are presented. This report includes tables, and graphs.
Date: March 1943
Creator: Holmes, C. R.; Wilson, J. E. & Davis, J. D.
Item Type: Refine your search to only Report
open access

A Correlation of the Dimensions, Proportions, and Loadings of Existing Seaplane Floats and Flying Boat Hulls

Description: Report presenting a study to determine what loadings and proportions have been chosen by designers of seaplanes and flying boats and what, if any, interrelations exist between the loadings and proportions. The characteristics considered include the beam, getaway speed, forebody length, afterbody length, hull length, center of gravity, and brake horsepower necessary.
Date: March 1943
Creator: Locke, Fred W. S., Jr.
Item Type: Refine your search to only Report
open access

Determination of Flight Paths of an SBD-1 Airplane in Simulated Diving Attacks, Special Report

Description: An investigation has been made to determine the motions of and the flight paths describe by a Navy dive-bombing airplane in simulated diving attacks. The data necessary to evaluate these items, with the exception of the atmospheric wind data, were obtained from automatic recording instruments installed entirely within the airplane. The atmospheric wind data were obtained from the ground by the balloon-theodolite method. The results of typical dives at various dive angles are presented in the fo… more
Date: March 1943
Creator: Johnson, Harold I.
Item Type: Refine your search to only Report
open access

The effect of altitude on cooling

Description: Report presenting variables that control the cooling of liquid-cooled and air-cooled engines and then to show by illustrations how either engine may be cooled at any desired altitude. Cooling was found to not be the limiting factor in the design of high-altitude airplanes and was also not found to be a valid reason for selecting either liquid- or air-cooled engines for high-altitude operation.
Date: March 1943
Creator: Brevoort, Maurice J.; Joyner, Upshur T. & Wood, George P.
Item Type: Refine your search to only Report
open access

Effect of Carburetor-Mixture-Control and Supercharger Characteristics on Fuel Knock Under Simulated Sea-Level Flight Conditions

Description: Report presenting knock-limit data recorded for a current 100-octane-number aviation gasoline in a full-scale single-cylinder test engine. Inlet-air temperatures were the temperatures estimated from a consideration of the temperature increase through an aircraft-engine supercharger. The data indicate that the relation of the carburetor-mixture-control characteristics to the knock characteristics of the fuel is an important factor in determining knock-free operation.
Date: March 1943
Creator: Rothrock, Addison M. & Wear, Jerrold D.
Item Type: Refine your search to only Report
open access

The Effect of Spinner-Body Gap on the Pressures Available for Cooling in the NACA E-Type Cowling

Description: "Tests of a 1/3-scale model of an NACA E-type cowling were made in the 8-foot high-speed tunnel for the purpose of determining the effect of the gap between the skirt of the hollow spinner and the cowling proper on the pressures available for cooling. It was found that even a large gap (0.096 in. on the model) had no appreciable effect on the available cooling pressures" (p. 1).
Date: March 1943
Creator: Becker, John V. & Mattson, Axel T.
Item Type: Refine your search to only Report
open access

Effects of Prior Fatigue-Stressing of the Impact Resistance of Chromium-Molybdenum Aircraft Steel

Description: Note presenting a study of the impact behavior of normalized SAE X4130 steel after a variety of repeated stress treatments. Fatigue specimens of several types were used and the effects of surface finish, rest periods, stress amplitude, mean stress, stress concentration, and temperature during repeated stress received consideration.
Date: March 1943
Creator: Kies, J. A. & Holshouser, W. L.
Item Type: Refine your search to only Report
open access

An Investigation of Aircraft Heaters 8: A Simplified Method for the Calculation of the Unit Thermal Conductance Over Wings

Description: Report presenting a simplified approximate method of calculating the unit thermal conductance along an airfoil as a function of distance from the leading edge, by use of heat transfer data for smooth cylinders and smooth flat plates. Several examples are used in order to show the effectiveness of the method.
Date: March 1943
Creator: Martinelli, R. C.; Guibert, A. G.; Morrin, E. H. & Boelter, L. M. K.
Item Type: Refine your search to only Report
open access

An Investigation of Aircraft Heaters 9: Measured and Predicted Performance of Two Exhaust Gas-Air Heat Exchangers and an Apparatus for Evaluating Exhaust Gas-Air Heat Exchangers

Description: Report presenting laboratory testing to determine the thermal output and pressure drop characteristics of the Airesearch and Solar fluted-type exhaust gas-air heat exchangers. The apparatus used in these tests consisted of a natural gas furnace of 3,000,000 Btu per hour thermal capacity, a centrifugal blower, and a system of ducting and various measuring devices. Results regarding the method of analysis, the Airesearch heat exchanger tests, the solar heat exchanger tests, and a comparison of th… more
Date: March 1943
Creator: Boelter, L. M. K.; Miller, M. A.; Sharp, W. H.; Morrin, E. H.; Iversen, H. W. & Mason, W. E.
Item Type: Refine your search to only Report
open access

An investigation of aircraft heaters 10: measured and predicted performance of a fluted-type exhaust gas and air heat exchanger

Description: Report presenting performance data on a small exhaust gas and air heat exchanger. The heat transfer rates were measured using about 8000 pounds per hour of exhaust gas and 4300 pounds per hour of ventilating air. The thermal performance of heater no. 2 can be estimated to 3 to 17 percent by use of the method described in the report.
Date: March 1943
Creator: Boelter, L. M. K.; Dennison, H. G.; Guibert, A. G. & Morrin, E. H.
Item Type: Refine your search to only Report
open access

Investigation of the Longitudinal Stability at High Speeds of a 1/5-Scale Model of a Tailless Pursuit Airplane

Description: "Tests of a tailless pursuit airplane model at the Ames Aeronautical Laboratory have shown that in conditions corresponding to level flight at a Mach number less than 0.7 and at an altitude under 35,000 feet, no serious compressibility effects occurred and that no sudden adverse diving moments were encountered up to a Mach number of 0.74, the maximum speed of the tests. However, there were indications that the elevons might lose their effectiveness for longitudinal control during a pull-out fro… more
Date: March 1943
Creator: Laitone, Edmund V.
Item Type: Refine your search to only Report
open access

A method for studying piston friction

Description: From Introduction: "The purpose of this investigation was to develop a method for determining directly the friction force between the piston and cylinder of an internal combustion engine. The method consists in elastically mounting the cylinder barrel so that it can have a small motion parallel to its axis, and providing suitable means for recording its instantaneous displacement."
Date: March 1943
Creator: Forbes, J. E. & Taylor, E. S.
Item Type: Refine your search to only Report

Newsmap. Monday, March 1, 1943 : week of February 19 to February 26, 181st week of the war, 63rd week of U.S. participation

Description: Front: Text describes action on various war fronts: North Africa, Russia, Burma-China, New Guinea, Solomons, Aleutians, Sinkings (sea losses). Large world map is keyed to text. Includes table: Great Circle Distances in Statute Miles. Inset map shows Tunisia. Includes photos: Nazi Panzers in Bizerte, Air base at Dakar, Hold on Kharkov, Hunting enemy submarines. Back: Poster provides recognition cues and front and profile drawings of Allied and Axis heavy, medium, and light armored cars. Incl… more
Date: March 1, 1943
Creator: [United States.] Army Orientation Course.
Item Type: Refine your search to only Poster

Newsmap. Monday, March 8, 1943 : week of February 26 to March 5, 182nd week of the war, 64th week of U.S. participation

Description: Front: Text describes action on various war fronts: New Guinea -- Solomons -- Submarines -- Tunisia -- Russia -- Western Europe. Large world map is keyed to text and illustrates time zones around the world. Inset maps show Tunisia -- Moscow/Leningrad region. Includes photographs: Attack: A-20 Boston bombers in central Tunisia -- Jeep rider: South Sea islander hitches a ride on an Army jeep -- Loudspeaker on Guadalcanal -- Jap 75 on New Guinea. Back: German Navy uniforms and insignia. Includ… more
Date: March 8, 1943
Creator: [United States.] Army Orientation Course.
Item Type: Refine your search to only Poster

Newsmap. Monday, March 15, 1943 : week of March 5 to March 12, 183rd week of the war, 65th week of U.S. participation

Description: Front: Text describes action on various war fronts: Russia, Air offensive, Unrest (France, Belgium, Norway), Southwest Pacific, Tunisia. Large world map is keyed to text and illustrates time zones around the world. Inset maps show Russia, Tunisia. Includes photographs: Convoy to Russia; American tank in Russia; Joint Assignment; Airborne engineers; Shower bath - desert style. Back: Learn to recognize these vehicles (half-track vehicles). Labelled illustrations of American, Canadian and Ge… more
Date: March 15, 1943
Creator: [United States.] Army Orientation Course.
Item Type: Refine your search to only Poster

Newsmap. Monday, March 22, 1943 : week of March 12 to March 19, 184th week of the war, 66th week of U.S. participation

Description: Front: Text describes action on various war fronts: Tunisia, Aleutians, New Guinea, Solomons, Pacific and Far East, Burma-China, Russia. Large world map is keyed to text and illustrates time zones around the world. Inset maps show northern Tunisia, and along the Russian front. Includes photographs: Pulling together for victory [Chinese laborers flatten a runway with a heavy roller]; Sgt. Robert Wilson of Wichita, Kansas rides a wheelbarrow taxicab; Yanks in the Far East care for Burmese orph… more
Date: March 22, 1943
Creator: [United States.] Army Orientation Course.
Item Type: Refine your search to only Poster

Newsmap. Monday, March 29, 1943 : week of March 19 to March 26, 185th week of the war, 67th week of U.S. participation

Description: Front: Text describes action on various war fronts: Tunisia, Air offensive, Submarines, Southwest Pacific, Russia, China. Large world map is keyed to text and illustrates time zones around the world. Inset maps show Gulf of Gabes region, Moscow region. Includes photographs: Counter attack at Kasserine, New Navy planes, Enemy hospital ship. Back: Gas. 5 gases are illustrated and described; Lewisite, mustard, tear gas, phosgene and clorpicrin.
Date: March 29, 1943
Creator: [United States.] Army Orientation Course.
Item Type: Refine your search to only Poster
open access

Optimum Design of Catalytic Towers

Description: Abstract: "This paper gives an arithmetic method of computing the number of sections required in a catalytic tower to produce a given enrichment. It also tells how to calculate the enrichment of a tower with a given number of sections. The problem of the most economical design of catalytic towers is solved. Methods are given for determining the temperature, the efficiencies of catalyst beds and strippers, the relative production rate, and the water vapor-hydrogen gas ratio which give the optimu… more
Date: March 13, 1943
Creator: Mayer, Harris
Item Type: Refine your search to only Report
open access

Radioactivity of the Cooling Water

Description: The most important source of radioactivity at the exit manifold of the pile will be due to O19, formed by neutron absorption of O18. A recent measurement of Fermi and Weil permits to estimate that it will be safe to stay about 80 minutes daily close to the exit manifolds without any shield. Estimates are given for the radioactivities from other sources -- both in the neighborhood and farther away from the pile.
Date: March 1, 1943
Creator: Wigner, Eugene Paul, 1902-1995.
Item Type: Refine your search to only Report
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