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Newsmap. For the Armed Forces. V-E Day + 10 weeks, 187th week of U.S. participation in the war

Description: Front: 8 years of war in China with chart of significant dates. Shows Japanese held areas as of 10 July with distances between larger cities. Map of Southeast Asia. Includes inset map of Asia. Includes 3 photographs. Back: [Quote from General Somervell] Burn this thought into your minds ...
Date: July 16, 1945
Creator: [United States.] Army Service Forces. Army Information Branch.
Item Type: Refine your search to only Poster
open access

Flight Tests of a Curtiss No. 838-1C2-18 Three-Blade Propeller Having Trailing-Edge Extensions

Description: "Flight tests to determine propeller performance have been made of a Curtiss No. 838-102-18 three-blade propeller having trailing-edge extensions on a Republic P-47D-28 airplane in climb and high speed. These tests are a part of a general propeller flight-test program at the Langley Laboratory of the National Advisory Committee for Aeronautics. Results of climb tests indicate that when power is changed from approximately 1475 horsepower at 2550 rpm (roughly normal power) to 2400 horsepower at 2… more
Date: July 16, 1947
Creator: Gardner, John J.
Item Type: Refine your search to only Report
open access

Performance Investigation of a Jumo 004 Combustor

Description: Report presenting an investigation of a German Jumo 004 combustor under conditions simulating zero-ram operation of a 24C jet-propulsion engine over ranges of altitude and engine speed to obtain the altitude operating limits and characteristics. Combustion efficiency, outlet-temperature distribution, and total-pressure drop were determined. The performance of the combustor with 62-octane and JP-1 fuels were also compared.
Date: July 16, 1947
Creator: Miller, Robert C.
Item Type: Refine your search to only Report
open access

Hydrodynamic Characteristics of an Aerodynamically Refined Planing-Tail Hull

Description: The hydrodynamic characteristics of an aerodynamically refined planing-tail hull were determined from dynamic model tests in Langley tank no. 2. Stable take-off could be made for a wide range of locations of the center of gravity. The lower porpoising limit peak was high, but no upper limit was encountered. Resistance was high, being about the same as that of float seaplanes. A reasonable range of trims for stable landings was available only in the aft range of center-of-gravity locations.
Date: July 16, 1948
Creator: McKann, Robert & Suydam, Henry B.
Item Type: Refine your search to only Report
open access

A Finite Step Method for the Calculation of Span Loadings of Unusual Plan Forms

Description: Report presenting an investigation of the applicability of a finite-step method to the calculation of subsonic spanwise load distribution, lift-curve slope, lateral center of pressure, and aerodynamic center of unusual plan forms. The 20-step method was found to generally overestimate the amount of loading at the wing tip, but the lift-curve slope, lateral center of pressure, aerodynamic center, and loading shape generally agreed with lifting-surface results.
Date: July 16, 1951
Creator: Campbell, George S.
Item Type: Refine your search to only Report
open access

A Description of the Acetone-Dye Solution Method of Demarcating a Leak Process Tubing While in the Pile

Description: Abstract: "A method has been devised and successfully used for marking a leaking pile process tube prior to its removal from the pile, such that subsequent location of the leak is more easily accomplished. An acetone solution of Testor's Dark Red Airplane Dope is poured into the suspect tube. The solution leaks from the hole and stains the surrounding area a light pink. To date the method has been used on tubes 3573F, 0486F, 0867F, and 3670F."
Date: July 16, 1952
Creator: DeHollander, W. R.
Item Type: Refine your search to only Report
open access

Dynamic corrosion of a stainless-steel specimen by water at 500 degrees F using a toroid circulating apparatus

Description: A slug of air-saturated distilled water was circulated for 317 hours at a velocity of 15 feet per second in an AISI 347 stainless-steel toroid with a wall temperature of 500 F and a 30 F difference in temperature between the hot and cold sections. The depth of corrosion layer was 0.001 inch (0.028 in./yr) in the hot sector and 0.0007 inch (0.019 in./yr) in the cold sector; no mass transfer was observed. The results of gas,water,and X-ray diffraction analyses are given together with photomicrogr… more
Date: July 16, 1952
Creator: Desmon, Leland G. & Mosher, Don R.
Item Type: Refine your search to only Report
open access

Influence of a canard-type control surface on flow field in vicinity of symmetrical fuselage at Mach numbers 1.8 and 2.0

Description: Report presenting an experimental investigation of the flow field downstream of a canard-type control surface and in the vicinity of a symmetrical body in the 8- by 6-foot supersonic tunnel at Mach numbers of 1.8 and 2.0. The results indicated severe total pressure losses and large flow deflections in the control surface wake.
Date: July 16, 1952
Creator: Wise, George A. & Dryer, Murray
Item Type: Refine your search to only Report
open access

Performance characteristics at Mach numbers to 2.0 of various types of side inlets mounted on fuselage of proposed supersonic airplane 1: two-dimensional compression-ramp inlets with semicircular cowls

Description: Report presenting an experimental investigation to determine the performance of twin-scoop side inlets located on the fuselage of a proposed aircraft in a region of large boundary-layer thickness. Inlet configurations with subsonic and supersonic cowlings which utilized two-dimensional compression ramps and ram-type scoops for boundary-layer-removal systems were investigated at several Mach number ranges. Results regarding supersonic Mach number range, angle of attack, subsonic Mach number, and… more
Date: July 16, 1952
Creator: Valerino, Alfred S.
Item Type: Refine your search to only Report
open access

Reactor Physics of Teapot - Part 3

Description: Introduction: This is the third of a series of memoranda concerning the statics of the teapot, a small-scale boiling reactor experiment, and covers power coefficients of reactivity, energy coefficients of fluid density, the poisoning effects of fission products, and production of gases. The numbering of the equations, figures, and tables thus follows that of CF 52-6-118.
Date: July 16, 1952
Creator: Kasten, Paul R.
Item Type: Refine your search to only Report
open access

Service of reduction bombs, Plutonium Purification and Fabrication, 234-5 Building

Description: This report presents information pertaining to the life of the reduction bombs in both the RG and RMM Lines of the Plutonium Purification and Fabrication operations in the 234-5 Building. The expected average life to rupture of the RG Line Bomb of carbon steel subjected to an internal pressure of 450 psig is ten hours at 750 C. The expected average life of the RM Line bomb of V-36 alloy is more than 100,000 hours at 750 C under the same operating conditions. These expected average life values d… more
Date: July 16, 1952
Creator: Ward, R.
Item Type: Refine your search to only Report
open access

Small-Scale Transonic Investigation of the Effects of Full-Span and Partial-Leading-Edge Flaps on the Aerodynamic Characteristics of a 50 Degree 38 Foot Sweptback Wing of Aspect Ratio 2.98

Description: Memorandum presenting a small-scale investigation of the effects of full-span and partial-span leading-edge flaps on the aerodynamic characteristics of a sweptback wing in the 7- by 10-foot tunnel over a Mach number range of 0.70 to 1.10. Lift, drag, pitching moment, and bending moment were obtained for the basic wing and for the wing with full-span and partial-span leading-edge-flap deflections of approximately 3, 6, and 9 degrees.
Date: July 16, 1952
Creator: Spreeman, Kenneth P. & Alford, William J., Jr.
Item Type: Refine your search to only Report
open access

Use of Fences to Increase Uniformity of Boundary Layer on Side Walls of Supersonic Wind Tunnels

Description: "An investigation of the use of solid fences installed on the side walls of a supersonic wind tunnel to retard the development of transverse flow and thus to increase the uniformity of the side-wall boundary layer is reported. Beneficial results were obtained with fences which had depths of the order of the boundary-layer displacement thickness and which followed potential-flow streamlines through the nozzle. Reduction of the number of fences on each side wall from four to two eliminated their … more
Date: July 16, 1952
Creator: Haefeli, Rudolph C.
Item Type: Refine your search to only Report
open access

X-RAY DOSAGE TO PATIENTS UNDERGOING ORAL ROENTGEN-OGRAPHY

Description: This report endeavors to point out the radiation hazards involved with respect to the patient undergoing oral roentgenography. The dose rate can be as high as 280 r/min. Very definite hematological changes have been observed and are being thoroughly investigated. Recommendations have been suggested to eliminate overexposures.
Date: July 16, 1952
Creator: Nolan, W. E.
Item Type: Refine your search to only Report
open access

Altitude Investigation of Several Afterburner Configurations for the J40-WE-8 Turbojet Engine

Description: "An investigation was conducted in the Lewis altitude wind tunnel to evaluate the performance and operational characteristics of the J40-WE-8 afterburner. A brief program of minor modifications to the flame holder, diffuser, and fuel system was undertaken to improve at a burner-inlet pressure level of 620 pounds per square foot. At this pressure level, modifications to the fuel system resulted in an increase in maximum net thrust from 1500 to 1600 pounds and a reduction in specific fuel consump… more
Date: July 16, 1953
Creator: Conrad, E. William & Campbell, Carl E.
Item Type: Refine your search to only Report
open access

Burning rates of single fuel drops and their application to turbojet combustion process

Description: Report presenting burning rates for single isooctane drops suspended in various quiescent oxygen-nitrogen atmospheres at room temperature and pressure. The burning rates were compared with those predicted by a previously developed theory based on a heat- and mass-transfer mechanism and with values predicted by a modification to the theory.
Date: July 16, 1953
Creator: Graves, Charles C.
Item Type: Refine your search to only Report
open access

Experimental Investigation of Air-Cooled Turbine Blades in Turbojet Engine 13: Endurance Evaluation of Several Protective Coatings Applied to Turbine Blades of Nonstrategic Steels

Description: Memorandum presenting an investigation of the durabilities of several protective coatings applied to air-cooled gas turbine rotor blades of nonstrategic steels in modified turbojet engines. Four types of coatings (ceramic, nickel, Nicrobraz, and aluminized) were applied to a total of 20 blades.
Date: July 16, 1953
Creator: Bartoo, Edward R. & Clure, John L.
Item Type: Refine your search to only Report
open access

Preliminary Transient Performance Data on the J73 Turbojet Engine 2 - Altitude, 35,000 Feet

Description: A program was undertaken to determine the J73 turbojet engine compressor stall and surge characteristics and combustor blow-out limits encountered during transient engine operation. Data were obtained in the form of oscillograph traces showing the time history of several engine performance parameters with changes in engine fuel flow. The data presented in this report are for step changes in fuel flow at an altitude of 35,000 feet, at flight Mach numbers of 0.3, 0.8, and 1.2, and at several engi… more
Date: July 16, 1953
Creator: Lubick, Robert J. & Sobolewski, Adam E.
Item Type: Refine your search to only Report
open access

Preliminary Transient Performance Data on the J73 Turbojet Engine, 3: Altitude, 45,000 Feet

Description: "A program was undertaken to determine the J73 turbojet engine compressor stall and surge characteristics and combustor blow-out limits encountered during transient engine operation. Data were obtained in the form of oscillograph traces showing the time history of several engine parameters with changes in engine fuel flow. The data presented in this report are for step and ramp changes in fuel flow at an altitude of 45,000 feet and flight Mach numbers of 0 and 0.8" (p. 1).
Date: July 16, 1953
Creator: McAulay, John E. & Wallner, Lewis E.
Item Type: Refine your search to only Report
open access

Report of meeting at Battelle Memorial Institute, June 29, 1953

Description: During the meeting each of the bonding mechanisms under study at BMI was reviewed by the engineer directly responsible for the work. These methods were solder bonding, extrusion cladding, roll cladding, and pressure bonding. The pressure bonding method, using an electroplated copper bonding layer, appeared to be most suitable for immediate use in MTR test plates. Roll cladding appears feasible only if further work indicates that bonds can be obtained either at temperatures in the high alpha ran… more
Date: July 16, 1953
Creator: Huntoon, R. T.
Item Type: Refine your search to only Report
open access

Quarterly progress report - metallurgy unit - April 1954--June 1954

Description: Four irradiated tensile specimens were tested in the Radiometallurgy laboratory. The uranium was from a lot rolled at Simonds Saw and STeel Company, then beta heat treated by the triple dip process. The samples were irradiated to 310 MWD/AT. The corrected exposure was 620 MWD/T after compensating for the decrease in flux depression due to the specimen size. Two of the irradiated specimens were tested in the as-received condition while the other two were vacuum annealed at 400{degree}C for 15 ho… more
Date: July 16, 1954
Creator: Cadwell, J.J.
Item Type: Refine your search to only Report
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