Technical Report Archive & Image Library (TRAIL) - 60 Matching Results

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Investigation of the effects of propeller diameter on the ability of a flapped wing, with and without boundary-layer control, to deflect a propeller slipstream downward for vertical take-off

Description: Report presenting an investigation to study the effects of propeller diameter on the ability of a flapped wing, with and without boundary-layer control, to deflect propeller slipstreams downward for vertical take-off. The results indicated that without boundary-layer control, an increase in the ratio of flap chord to propeller diameter increases the turning angle but decreases the ratio of resultant force to thrust.
Date: December 1957
Creator: Spreemann, Kenneth P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Isolation and Identification of an Ester from a Crude Oil

Description: Abstract: "A dioctylphthalate has been isolated from a crude oil by means of adsorption column chromatography. The ester was identified by means of elemental analysis, refractive index, and its infrared adsorption spectrum. Saponification of the isolate and examination of the resultant alcohol by means of infrared adsorption spectra led to the conclusion that the ester is a branched chain dioctylphthalate. This is the first reported occurrence of an ester in crude petroleum."
Date: December 1957
Creator: Phillips, Harry F. & Breger, Irving A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A laboratory Ivestigation of the Fluorination of Crude Uranium Tertrafluoride

Description: Ore concentrates have been converted directly to crude uranium tetrafluoride by hydrogen reduction and hydrofluorination in fluidized-bed reactors. Small-scale laboratory experiments demonstrated that this process can be extended to the production of crude uranium hexafluoride through fluorination of the uranium tetrafluoride in a fluidized bed. The satisfactory temperature range for the reaction lies between 300°C and 600°C. At 450°C the fluorine utilization is between 50 and 80 per cent. With… more
Date: December 1957
Creator: Sandus, O. & Steunenberg, R. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Laminar Boundary Layer With Heat Transfer on a Cone at Angle of Attack in a Supersonic Stream

Description: Note presenting the equations of the compressible laminar boundary layer for the windward streamline in the plane of symmetry of a yawed cone. Solutions are obtained for both insulated and cooled surfaces. The heat-transfer rate to this most windward streamline increases significantly with angle of attack.
Date: December 1957
Creator: Reshotko, Eli
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Liquid Metal Fuel Reactor Experiment (Phase 1C): Supplement to LMFRE Reference Design Report

Description: This supplement describes a number of modifications to the Liquid Metal Fuel Reactor Experiment (LMFRE), including (1) engineering design changes to achieve economies in the original reference design, and (2) a revised cost estimate that reapportions the various construction, research and development, and operating costs in accordance with procedures established by the Atomic Energy Commission.
Date: December 1957
Creator: Babcock & Wilcox Company
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Report of the Forty-Second National Conference on Weights and Measures, 1957

Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date: December 20, 1957
Creator: United States. National Bureau of Standards.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Normal-force and hinge-moment characteristics at transonic speeds of flap-type ailerons at three spanwise locations on a 4-percent-thick sweptback-wing-body model and pressure distribution measurements on an inboard aileron

Description: Report presenting an investigation conducted at the 16-foot transonic tunnel to determine the loading characteristics of flap-type ailerons located at inboard, midspan, and outboard positions on a 45 degree sweptback-wing-body combination. Results indicated that the loading over the ailerons was established by the wing-flow characteristics and the loading shapes were irregular in the transonic speed range.
Date: December 5, 1957
Creator: Runckel, Jack F. & Hieser, Gerald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pressure Measurements on an Afterbody Behind Various Blunt Nose Shapes at a Mach Number of 2

Description: Memorandum presenting an investigation of flow surrounding afterbodies behind blunt nose shapes at a Mach number of 2 in the 27- by 27-inch preflight jet. Pressure measurements were made on and around the afterbodies for each configuration.
Date: December 27, 1957
Creator: Speegle, Katherine C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A reexamination of the use of simple concepts for predicting the shape and location of detached shock waves

Description: A reexamination has been made of the use of simple concepts for predicting the shape and location of detached shock waves. The results show that simple concepts and modifications of existing methods can yield good predictions for many nose shapes and for a wide range of Mach numbers.
Date: December 1957
Creator: Love, Eugene S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Report #26: Development of Photomultiplier Tubes

Description: From Large Area Multiplier Phototubes: "Figure 1 illustrates the nature of the design required as compared to the cone design utilized previously, Fig. 2. The metal cone shown in Figure 1 will be welded onto flange of the cone in Figure 2."
Date: December 1957
Creator: Schenkel, F. W. & Snell, P. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Supplementary Investigation in the Langley 20-Foot Free-Spinning Tunnel of a 1/20-Scale Model of the Douglas F4D-1 Airplane With External Wing Fuel Tanks

Description: Report presenting an investigation in the 20-foot free-spinning tunnel on a scale model to determine the spin and recovery characteristics of the Douglas F4D-1 airplane equipped with external fuel tanks. Results regarding erect spins, inverted spins, and parachute results are provided.
Date: December 27, 1957
Creator: Bowman, James S., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Supplementary Investigation in the Langley 20-Foot Free-Spinning Tunnel of a 1/20-Scale Model of the Douglas F4D-1 Airplane With External Wing Fuel Tanks: TED No. NACA AD 3116

Description: Memorandum presenting an investigation in the 20-foot free-spinning tunnel on a scale model to determine the spin and recovery characteristics of the Douglas F4D-1 airplane with external wing fuel tanks installed. The results indicated that any fully developed erect spin obtained on the airplane with tanks installed will be satisfactorily terminated by rudder reversal accompanied by moving the ailerons to full with the spin.
Date: December 27, 1957
Creator: Bowman, James S., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Synthesis and Properties of Carnotite and its Alkali Analogues

Description: A report which records the results of experiments dealing with the synthesis of carnotite and its alkali analogues. The work was primarily concerned with the preparation of single crystals suitable for detailed structural analysis, though some insight into the chemistry of the precipitation of carnotite was obtained.
Date: December 1957
Creator: Barton, Paul B., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Theoretical and Experimental Investigation of Arbitrary Aspect Ratio, Supercavitating Hydrofoils Operating Near the Free Water Surface

Description: Report presents a comparison of the theoretical and experimental expressions of lift, drag, and center of pressure of supercavitating hydrofoils. The results obtained from both methods appear to agree well with one another. The application of cavitation number to a variety of situations and speeds is also provided.
Date: December 12, 1957
Creator: Johnson, Virgil E., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Thermocouple Subcarrier Oscillator for Telemetering Temperatures From Pilotless Aircraft

Description: Note presenting a subcarrier oscillator which, in conjuncting with a telemetering system, gives a satisfactory method for telemetering temperatures by means of thermocouples from pilotless aircraft. The method results in an oscillator having a small size, low microphonics, high input resistance, and satisfactory stability if a switch is used to commutate calibration voltages along with the pickups.
Date: December 1957
Creator: Fricke, Clifford L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Three-Degree-of Freedom Evaluation of the Longitudinal Transfer Functions of a Supersonic Canard Missile Configuration Including Changes in Forward Speed

Description: Note presenting a reevaluation of existing flight data obtained for a supersonic canard missile configuration of the boost-glide type to determine derivatives not previously evaluated. The derivatives are utilized to determine some typical airframe frequency responses based on the three-degree-of-freedom longitudinal equations of motion. Results regarding derivatives, frequency responses, and three-degree-of-freedom approach to future automatic-control studies are provided.
Date: December 1957
Creator: Seaberg, Ernest C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Transition-flight investigation of a four-engine-transport vertical-take-off airplane model utilizing a large flap and extensible vanes for redirecting the propeller slipstream

Description: Report presenting an experimental investigation to determine the dynamic stability and control characteristics of a four-engine-transport vertical-take-off airplane model in the transition range from hovering to normal forward flight. Both flight and static-force tests were conducted and flight testing was carried out with a pitch damper installed. Results regarding longitudinal stability and control and lateral stability and control are provided.
Date: December 1957
Creator: Tosti, Louis P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Turbulence measurements in multiple interfering air jets

Description: Report presenting turbulent and mean-flow characteristics of several noise-suppression multiple-jet nozzles from hot-wire-anemometer measurements for the flow conditions at Mach number 0.3. The measurements show that turbulent mixing, as indicated by reduced intensity and scale of turbulence, occurs closer to the nozzle in interfering than in noninterfering jets. Results regarding mean flow, turbulent flow, and scale or eddy size are provided.
Date: December 1957
Creator: Laurence, James C. & Benninghoff, Jean M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Velocity and friction characteristics of laminar viscous boundary-layer and channel flow over surfaces with ejection or suction

Description: Report presenting some information on flow characteristics - velocity field, pressure drop, and friction - for steady, fully developed laminar flow through a duct consisting of two parallel walls, for flow throguh tubes with circular cross section, and for boundary-layer flow over infinite wedges. In order to determine the extent to which the boundary conditions imposed o the flow by the various geometries influence the flow characteristics, dimensionless parameters common to both channel and b… more
Date: December 1957
Creator: Eckert, E. R. G.; Donoughe, Patrick L. & Moore, Betty Jo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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