UNT Libraries Government Documents Department - 12 Matching Results

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100 Areas technical activities report: Engineering, June 1947

Description: There were no cases of unusual blistering of slugs being followed under Production Tests. Two normal production tubes were borescoped following trouble with discharge. In Tube 3188-D a distorted slug became stuck in the region of sharp curvature near the inner end of the rear gun barrel; this is the first time this phenomenon has occurred. Examination of irradiated slugs of rolled metal after normal exposure indicates that rolled material has no particular advantages over extruded material from… more
Date: June 25, 1947
Creator: Woods, W. K.
Item Type: Refine your search to only Report
open access

Chemical Properties of Uranium Hexafluoride, UF6

Description: Uranium hexafluoride has the distinction of being the only stable gaseous compound of uranium known up to the present moment. Because of this property it is the only compound that can be used for processes of isotope separation, such as diffusion, thermal diffusion, centrifuge separation, distillation, and other of a similar nature. Here is a short description of the properties of UF{sub 6} and is intended for a reader interested only casually in this compound. UF{sub 6} is a very reactive comp… more
Date: June 25, 1941
Creator: Grosse, Aristid V.
Item Type: Refine your search to only Report
open access

The excretion of hexavalent uranium following intravenous administration. II, Studies on human subjects

Description: Tracer studies employing uranium enriched in the isotopes U{sup 234}, U{sup 235} have been carried out in six human subjects; four males and two females. The uranium, 6 micrograms to 70 micrograms per kilogram of body weight was given intravenously in the hexavalent state as uranyl nitrate. Each individual of the series received a single injection of the metal except for one who was given two widely spaced doses. The first of these was when his condition was normal and the second after an acido… more
Date: June 25, 1948
Creator: Bassett, S.H.; Frankel, A.; Cedars, N.; VanAlstine, H.; Waterhouse, C. & Cusson, K.
Item Type: Refine your search to only Report
open access

Flight-Test Evaluation of the Longitudinal Stability and Control Characteristics of 0.5-Scale Models of the Fairchild Lark Pilotless-Aircraft Configuration: Standard Configuration with Wing Flaps Deflected 60 Degrees and Model having Tail in Line with Wings, TED No. NACA 2387

Description: Flight tests were conducted at the Flight Test Station of the Pilotless Aircraft Research Division at Wallop Island, Va., to determine the longitudinal control and stability characteristics of 0.5-scale models of the Fairchild Lark pilotless aircraft with the tail in line with the wings a d with the horizontal wing flaps deflected 60 deg. The data were obtained by the use of a telemeter and by radar tracking.
Date: June 25, 1947
Creator: Stone, David G.
Item Type: Refine your search to only Report

Newsmap. For the Armed Forces. V-E Day + 7 weeks, 184th week of U.S. participation in the war

Description: Front: Text describes action on various fronts and is keyed to map. Photographs: Japanese soldiers, Japanese submarine, Suicide planes, Japanese war industry, aerial view of damage to Tokyo. Map: East Asia and Pacific. Inset maps: 5480 tons of bombs a day! Back: World map with shaded areas showing liberated areas since 7 Dec 1941, enemy held areas as of 8 May 1945; dotted lines show battlelines as of 7 Dec 1941, 1942, 1943, 1944 and 8 May 1945.
Date: June 25, 1945
Creator: [United States.] Army Service Forces. Army Information Branch.
Item Type: Refine your search to only Poster
open access

Performance of a 20-inch steady-flow ram jet at high altitudes and ram-pressure ratios

Description: Report presenting the results of an investigation conducted in the altitude wind tunnel to determine the performance of a 20-inch ramjet. The investigation was conducted at a range of altitudes and ram-pressure ratios using preheated 62-octane fuel. A net thrust of 8135 pounds educed to standard sea-level conditions, a net-thrust coefficient of 0.74, and an overall efficiency of 12.6 percent were attained at Mach number 1.845 at which the engine with a 5-foot combustion chamber was operated.
Date: June 25, 1947
Creator: Perchonok, Eugene; Sterbentz, William H. & Wilcox, Fred A.
Item Type: Refine your search to only Report
open access

Preliminary Free-Flight Investigation of the Effect of Airfoil Section on Aileron Rolling Effectiveness at Transonic and Supersonic Speeds

Description: "Results have been obtained by means of a free-flight technique utilizing rocket propulsion which indicate that aileron-rolling-effectiveness characteristics are affected adversely by variations in airfoil section which procedure large increases in the trailing-edge angle" (p. 1).
Date: June 25, 1948
Creator: Sandahl, Carl A.
Item Type: Refine your search to only Report
open access

Pressure-distribution measurements on a full-scale horizontal tail surface for a Mach number range of 0.20 to 0.70

Description: Report presenting testing of a full-scale, semispan, horizontal tail surface for a jet-propelled fighter airplane in the 16-foot high-speed tunnel to determine the variation of the chordwise and spanwise pressure distributions with Mach number. Surface irregularities were found to cause appreciable distortion of the pressure distribution. Results regarding chordwise distributions, spanwise distribution, effect of Mach number on root bending moment, and estimated critical Mach numbers are provid… more
Date: June 25, 1947
Creator: Schueller, Carl F.
Item Type: Refine your search to only Report
open access

The use of perforated inlets for efficient supersonic diffusion

Description: Report presenting the use of wall perforations on supersonic diffusers to avoid the internal contraction-ratio limitation. Experimental results on a preliminary model of a perforated diffuser at Mach number 1.85 are provided. A theoretical discussion of the flow coefficients and the size and spacing of the perforations are included.
Date: June 25, 1947
Creator: Evvard, John C. & Blakey, John W.
Item Type: Refine your search to only Report
open access

Wind-Tunnel Investigation of Bomb-Bay Configurations Intended to Minimize the Tumbling of Light-Weight Bombs

Description: Report presenting an investigation in the 300 mph 7- by 10-foot tunnel to determine what modifications could be made to conventional bomb bays to reduce the tumbling difficulties experienced with light-weight bombs. The investigation indicated that there is a definite region of reversed flow inside the bomb bay which must be weakened or destroyed if good drops are to be obtained.
Date: June 25, 1947
Creator: Kuhn, Richard E. & Polhamus, Edward C.
Item Type: Refine your search to only Report
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