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Criminal investigation.

Description: Describes procedures for criminal investigations conducted by military police during wartime. Discusses the purposes and functions of the Security Intelligence Corps (SIC).
Date: April 1945
Creator: United States. War Department.
Partner: UNT Libraries Government Documents Department
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Photomail operation.

Description: Describes procedures for signal photomail (microfilmed mail) service operations. Includes instructions for handling V-mail (personal correspondence) as well as official War Department photomail.
Date: April 1945
Creator: United States. War Department.
Partner: UNT Libraries Government Documents Department
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Report on production test No. 313-69-M: Effect of straightening rods before outgassing upon warped slugs

Description: Strains are introduced into bars by cold working in the straightening operation. If no treatment is applied to relieve the strains after the straightening operation, it is conceivable that they may be relieved in the canning process and cause warped slugs. The purpose of this test was to see if fewer non-seats would occur among slugs machined from bars that were outgassed after straightening. Seven hundred and thirty-five slugs from bars that were straightened before outgassing were caned by th… more
Date: April 24, 1945
Creator: Eubank, L. D.
Partner: UNT Libraries Government Documents Department
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Report on Production Test No. 313-68-M: Recanning of warped slugs segregated after the centrifuge by technical warp gauge

Description: It has been found that warped slugs which produce ``non-seats`` segregated after the centrifuging operation by use of a suitable gauge. The slugs which do not pass the gauge are quenched in water and set aside for later recovery. The purpose of this test was to determine if the rejected slugs could be straightened, degreased and recanned by dipping them directly in the bronze and then through the subsequent steps. One hundred and twenty-nine slugs rejected by the warp gauge were straightened, d… more
Date: April 20, 1945
Partner: UNT Libraries Government Documents Department
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The Effect of Thermal Cycling on the Thermal Transfer from a Sand Blasted Slug to an Unbonded Jacket

Description: Abstract. Measurements were made to determine the effect of thermal cycling on heat transfer from slug to jack using a slug with a sand blasted surface. The value of the transfer coefficient h decreased from initial values ranging from 10 to [formula], to values and [formula] after 1700 cycles, and to a range of 0.15 to 0.45 [formula] after 3200 cycles. Comparisons are made with the results found for slugs with different surfaces.
Date: April 2, 1945
Creator: Bentley, Robert R.
Partner: UNT Libraries Government Documents Department
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The Hall Effect in Neutron Irradiated and Annealed Graphite

Description: Abstract. Irradiated Whiting graphite possesses a small negative or a positive Hall constant, depending upon the dosage. Annealing at 500 degrees C for 1 hour in helium results in a Hall constant which is large in magnitude and negative in sign. The properties of the annealed graphite are presumably close to those of the original unirradiated material. Unirradiated AGOT-K graphite has a large, negative Hall constant. A mechanism is suggested which accounts for the change in sign of the Hall con… more
Date: April 18, 1945
Creator: Maurer, Robert J. & Ruder, Richard C.
Partner: UNT Libraries Government Documents Department
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Separation of Tuballoy From Gunk Solutions by Sulfite Precipitation

Description: Summary: A method is presented for the precipitation of tuballoy, apparently as a tubanyl ammonium sulfite, from gunk solutions containing the contaminants encountered in the recovery cycle. The impurities are not precipitated under the conditions employed, and their amounts in the product are reduced to values which can be attributed to occlusion. The recovery of tuballoy on one precipitation ranges from 99.5% to 99.9%.
Date: April 18, 1945
Creator: Ryon, A. D. & Armstrong, E. C.
Partner: UNT Libraries Government Documents Department
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Flight Investigation of Modifications to Improve the Elevator Control-Force Characteristics of the Curtiss SB2C-1C Airplane in Maneuvers

Description: Report discussing tests on three sets of elevators with various combinations of section contour, balancing tabs, bobweights, and control-system mechanical advantage on an SB2C-1C airplane. Effects on maneuvering stability, a comparison of production elevators and recommended arrangement, and internal elevator pressures are described.
Date: April 1945
Creator: White, Maurice D. & Reeder, John P.
Partner: UNT Libraries Government Documents Department
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Flight Investigation of Boundary-Layer Transition and Profile Drag of an Experimental Low-Drag Wing Installed on a Fighter-Type Airplane

Description: Report presenting a boundary-layer transition and profile-drag investigation on an experimental low-drag wing installed on a P-47 airplane designated the XP-47F and supplied by the Army Air Forces. Measurements were made at a section outside the propeller slipstream with smooth and with standard camouflage surfaces and on the upper surface of a section in the propeller slipstream with the surface smoothed.
Date: April 1945
Creator: Skoog, Richard B.
Partner: UNT Libraries Government Documents Department
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An investigation of aircraft heaters 22: measured and predicted performance of a fluted-type exhaust gas and air heat exchanger

Description: Report presenting data on the thermal performance and static and total pressure drop characteristics of a fluted-type exhaust gas and air heat exchanger. Results regarding heat transfer, pressure drop, and non-isothermal pressure drop are provided.
Date: April 1945
Creator: Boelter, L. M. K.; Guibert, A. G.; Rademacher, J. M. & Romie, F. E.
Partner: UNT Libraries Government Documents Department
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An investigation of aircraft heaters 23: measured and predicted performance of a flat-plate type exhaust gas and air heat exchanger

Description: Report presenting results of tests of the thermal performance and the static pressure drop characteristics of a flat-plate type exhaust gas and air heat exchanger. The ventilating air shroud built into the heat exchanger gives characteristics of cross flow and parallel flow.
Date: April 1945
Creator: Boelter, L. M. K.; Guibert, A. G.; Rademacher, J. M. & Sanders, V. D.
Partner: UNT Libraries Government Documents Department
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An Investigation of Aircraft Heaters 25: Use of the Thermopile Radiometer

Description: Report presenting an analysis of the thermopile radiometer as used in the measurement of irradiation and radiant power interchange is given. The theory of the instrument when used to measure irradiation and net radiant power interchange is developed, and the precautions to be observed when using it for these measurements are presented.
Date: April 1945
Creator: Boelter, L. M. K.; Bromberg, R.; Gier, J. T. & Dempster, E. R.
Partner: UNT Libraries Government Documents Department
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An Investigation of Aircraft Heaters 21: Measured and Predicted Performance of a Flattened-Tube Type Crossflow Exhaust Gas and Air Heat Exchanger

Description: Report presenting data on the thermal performance and the static pressure drop characteristics of a flattened-tube type crossflow exhaust gas and air heat exchanger. The measured thermal outputs and static pressure drops are compared with predicted magnitudes.
Date: April 1945
Creator: Boelter, L. M. K.; Guibert, A. G.; Rademacher, J. M.; Romie, F. E.; Sanders, V. D. & Sloggy, L. J. B.
Partner: UNT Libraries Government Documents Department
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An investigation of aircraft heaters 20: measured and predicted performance of a finned-type cast-aluminum crossflow exhaust gas and air heat exchanger

Description: Report presenting data on the thermal performance and static pressure drop of a finned-type cast-aluminum exhaust gas and air heat exchanger. Results regarding heat transfer, isothermal pressure drop, and heater surface temperature are provided.
Date: April 1945
Creator: Boelter, L. M. K.; Guibert, A. G.; Rademacher, J. M.; Romie, F. E. & Sanders, V. D.
Partner: UNT Libraries Government Documents Department
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Two-Dimensional Wind-Tunnel Investigation of Spoiler Aileron Flap Model for the Hughes XF-11 Airplane

Description: Report discussing testing on a retractable spoiler aileron on the NACA 66(215)-216 airfoil with a 25-percent-chord slotted flap. The effects of spoiler thickness, spoiler gap, spoiler bevel angle, spoiler roughness, and flap deflection on aerodynamic characteristics are described.
Date: April 1945
Creator: Underwood, William J. & Fullmer, Felicien F., Jr.
Partner: UNT Libraries Government Documents Department
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Test of 0.14-Scale Models of the Control Surfaces of Army Project MX-511 in Attitudes Simulating Spins

Description: Report discussing the aerodynamic characteristics of the wing and isolated tail of the Bell XP-83 airplane in attitudes simulating spin conditions. Information about the the aileron hinge moment, angle of attack, and elevator hinge-moment is provided.
Date: April 1945
Creator: Hoggard, H. Page, Jr. & Hagerman, John R.
Partner: UNT Libraries Government Documents Department
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