Report discussing a model of a delta-wing configuration with four engines mounted two to a nacelle below the wing that was tested a variety of Mach numbers and Reynolds numbers. The wing static-pressure coefficients, wing pressure coefficients, and lift coefficient of different configurations are described.

From Introduction: "The objective of this report are (1) to describe the complete fuel system, (2) to discuss the procedure used for transitions between JP-4 fuel and hydrogen, and (3) to present and discuss engine performance obtained with both fuels, and (4) to review the reliability of the fuel system."

Report presenting an investigation of a liquid-hydrogen fuel system developed to operate one of the turbojet engines in a twin-engine light bomber at an altitude of 50,000 feet and Mach number 0.75. The heat exchanger was evaluated in an altitude test chamber in conjunction with the complete aircraft fuel system. Results regarding calculated heat-exchanger performance, experimental heat-exchanger performance, and reliability are provided.

Memorandum presenting the system analysis, design, and performance of a control system for an experimental flight-type hydrogen fuel system. The fuel system was designed to investigate some of the problems associated with the utilization of hydrogen as an aircraft fuel. Speed control of the engine was obtained by coupling the hydrogen regulator to the JP-4 fuel control.

Memorandum presenting testing of a twin-engine light bomber modified to utilize hydrogen fuel in one of the two engines during flight at an altitude of 50,000 feet. Three completely successful flights were made using hydrogen fuel. Data are presented to show the effect of tank agitation on fuel pressure and fuel losses.

The following report provides the design and workings of a heavy-ion accelerator designed to accelerate particles of atomic weight 12 through 20.

This report follows the study of a perturbation in the fringing magnetic field of a synchrocyclotron, using the computed unperturbed orbits of the modified Berkeley 184-inch synchrocyclotron, and introduces the peeler extraction to overcome limitations by using a perturbation that recedes with increasing radial amplitude.

Thesis presenting data taken on experimental nuclear magnetic moments for beta spectra of the mirror nuclei with A-19 to 39.

Thesis discussing the reactions of mixed crystals of rare earth fluorides with fluorine gas. The reactions were "studied gravimetrically by determining the weight increases of mixed tetrafluoride samples upon exposure to fluorine at a pressure of 1 atmosphere and a temperature of 250°C...The nature of the phases produced upon fluorination was studied by x-ray diffraction methods."

The following report provides results from investigations on the operation of the power supply for the Bevatron Magnet as well as maintenance problems.

Abstract: "The free energy (surface tension) of a liquid film can withstand atmospheric pressure across a maximum theoretical gap of 10-(-3) cm between solids if the liquid wets and bridges the sides of the gap continuously. The eutectic alloy of Ga, lm and Sm is used for this purpose. This alloy is molten at room temperature with surface tension > 500 dynes/cm, vapor pressure < 10-(-8) cm at 500 C and excellent wetting properties. This alloy can be utilized in valves, motion seals, flanged joints and for electrical contacts mounted in any position. Using ultrasonic soldering techniques without heat or flux this alloy is readily wetted on W, Mo, Ta, pyrex, quartz and certain ceramics. These materials will withstand the corrosive action of this alloy at at least 400 C. Some de-wetting has been observed with only the nonmetals at high temperatures. This de-wetting may be due to thermal decomposition of gallium oxide. Stainless steel is easily wetted, but is attacked at temperatures above 300 C. Copper and brass are attacked at room temperature."

From introduction: A subsurface exploration program was undertaken to investigate the concentration of uranium and vanadium in or near the base of the Shinarump member of the Chinle formation in the Flatirons locality, and to develop criteria whereby adjacent unexplored areas could be evaluated as to potential production capacity from study of geological and mineralogical features at the host rook outcrop. An earlier study of the area by C. G. Evensen of the U. S. Atomic Energy Commission had shown that geological conditions favorable to the accumulation of commercial uranium deposits were present in the Flatirons area.

Abstract: The discovery and exploration of primary uranium mineralization in the Sierra Anchas of east-central Arizona made possible an analysis of the structural ore controls.

Abstract: An IBM-650 computer has been used to calculate series terms required for the area analysis of Doppler-broadened neutron cross section resonances according to the formulation of G. M. Roe.

This report contains general background information about the John H. Kerr project, which comprises a retaining structure, Buggs Island Dam, and a backwater protection structure, Island Creek Dam. It also provides more detailed information about the design, construction, and prototype observation of each of the dams.

Report issued by the Bureau of Mines over a study conducted on the Houston coal mine. Descriptions of the location, geology, and production of the coal mine are presented. This report includes tables, maps, and illustrations.

Note presenting an investigation at low speed of the performances of circular and annular 90 degree bends of simple shapes conducted for configurations for which the cross-sectional area was constant, expanding, and contracting. Two series of transition bends were included, in which the transition occurred upstream of the bend, within the bend, and downstream from the bend. Results regarding the inlet velocity profiles, exit velocity and total-pressure profiles, and mean total-pressure-loss coefficients and exit total-pressure distortions are provided.

Report presenting linearized-theory calculations of the drag reduction achieved by applying the first three terms of a power series for twist to flat delta wings. For the family of wings investigated, the maximum drag reduction is 2 percent in the medium sweepback range with a steady diminution in both directions. Results for the delta and arrow wings and the optimum settings are provided.

Report presenting the results of an experimental and theoretical investigation of the vaporization of fuel droplets in heated air under atmospheric pressure. An experimental investigation of the temperature and mass histories of single droplets was made, a comparison of the experimental results was conducted with calculated temperature and mass histories, and the time taken by a droplet vaporizing to for a mixture of fuel vapor and air of combustible strength is calculated.

Report presenting an investigation at low speed to determine the Magnus effect on various sections of a body of revolution of which several sections could be rotated either as individual units or in combinations. The investigation included the measurement of the Magnus effect on the body alone and on the body with a three-blade propeller.

Report presenting an approximate analysis of the nonlinear effects of initial twist and large deflections on the torsional stiffness of a cantilever plate subjected to a nonuniform temperature distribution. The results show that the initial twist and applied moments can have significant effects on the changes in stiffness produced by nonuniform heating. Results regarding the general results of equations and comparison with experiment are provided.

From Summary: "Results of rapid-heating tests of Inconel X sheet are presented for nominal temperature rates of 0.2 degrees F to 100 degrees F per second under constant tensile load conditions. Yield and rupture stresses obtained under rapid-heating conditions are compared with the results of conventional tensile stress-train tests at elevated temperatures. A marked increase in strength is observed with increased temperature rates."

Note presenting a method for determining lateral stability derivatives from flight measurements, which is obtained by arranging the lateral equations of motion in such form that information from each of the three modes of lateral motion may be utilized. The method permits determination of all the important derivatives without requiring an estimation of any of the derivatives. Results regarding the probable errors in measurements, errors in derivatives, effect of side-force rate derivatives, and some improvements in the method are provided.

Report presenting a study of the effects of wing flexibility on wing strains due to gusts for four spanwise stations of a four-engine bomber airplane and a correlation with previous testing results. Results regarding the power spectre, peak counts, amplification factors, statistical reliability, input disturbance, frequency-response functions, output response, and amplification factors are provided.