Report presenting an investigation to determine the effect of conical camber on the drag due to lift and on the static longitudinal, lateral, and directional stability characteristics of an aspect-ratio-3, 45 degree sweptback wing in combination with a streamline body. The addition of conical camber to the basic wing reduced the drag due to lift at moderate and large lift coefficients and increased the maximum lift-drag ratios.

Report presenting an investigation of heat transfer and pressure distribution on flared bodies under laminar, transitional, and turbulent boundary-layer conditions at Mach number 6.8. Information about flow characteristics, flare drag, and the relationship between flare drag and flare heating is provided.

Report presenting an investigation at two Mach numbers to examine the characteristics of a series of nine spoiler-type controls on a trapezoidal wing with the leading edge swept back 23 degrees, an aspect ratio of 3.1, and a taper ratio of 0.4. Results of the tests indicated that the incremental pressure distributions due to spoiler were in agreement with previous results as long as the spoiler was not too close to a break in the wing surface or the wing tip.

Memorandum presenting an investigation made to determine the effects of lip bluntness, camber, and leading-edge roundness on the drag and pressure recovery of a normal-shock nose inlet in a body of revolution. Surface pressure distributions over the inlet lip and forebody were also obtained. Results regarding surface-pressure distributions, external drag, and pressure recovery are provided.

Report presenting the static-thrust characteristics of the NACA 8.75-(5)(05)-037 dual-rotation propeller with six and eight blades as obtained on the static test stand in the course of an investigation set up primarily for studying blade vibratory stresses. Force data were obtained for a blade-angle range measured at the 0.75 radial station on the front propeller. Results regarding the effect of tip Mach number, effect of number of blades, and effect of blade angle are provided.

Report presenting aerodynamic-heating data obtained on a modified-fineness-ratio-5.0 Von Karman nose shape at free-stream Mach numbers up to 10.4 with a rocket-propelled model. Transient skin temperatures were measured on the nose, and a maximum temperature of 1,663 degrees R was measured after maximum Mach number was obtained.

Report presenting zero-lift drag data obtained on a series of six bomb shapes. Five configurations had the same body shape with different body-surface conditions and profile and plan form of fins, and the sixth had a different and longer body shape. Results regarding the effect of blunt trailing edge, blunt leading edge, fin thickness, and body surface are provided.

Report presenting an investigation at low speed to determine some of the effects of wing fences on the lateral stability derivatives of a flat-plate 60 degree delta-wing model oscillating continuously in yaw. Results regarding the variation with angle of attack, effect of frequency, effect of amplitude, number of fences, and some effects of fence geometric characteristics are provided.

Memorandum presenting a flight investigation to determine the effect of a propulsive jet on the zero-lift drag characteristics of two twin-exit boat-tailed bodies at transonic speeds. The two models had ratios of jet area to base area of 0.394 and 0.590 and covered a Mach number range of 0.8 to 1.15. A slight reduction in drag coefficients from power-off values are obtained during power-on flight for both models.

Report presenting experimental data from calm- and rough-water landing impacts with a dynamic model of a seaplane incorporating a flat-bottom hydro-ski mounted on a rigid strut and on a shock-absorber strut. Results regarding the fixed-ski case and translating-ski case are provided.

Report presenting an investigation at a free-stream Mach number of 1.80 in a blowdown tunnel to study the effect on the pressure distribution of a zero-angle-of-attack wing surface when certain exhaust parameters of a hot turbojet engine are varied. Results regarding shock wave and pressure coefficients are provided.

Report presenting some considerations and techniques pertinent to the application of the supersonic area rule to the design of airplane fuselages. Some of the factors to consider are an extension of the rule to account for the interference effects of the wing and tail on general flow field, the determination of fuselage area developments which result in minimum wave drag, and the influence of wing parameters and Mach number on the effectiveness of fuselage shaping.

Report issued by the Bureau of Mines over experiments conducted on fuel-gas mixtures. The results of these experiments are presented. This report includes tables, graphs, illustrations, and photographs.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John Ben Shepperd, regarding a legal question submitted for clarification: Right of member of the general public to walk, for fishing purposes, in a river bed, title to which has been relinquished under the Small Bill (Art. 5414a, V.C.S.)

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John Ben Shepperd, regarding a legal question submitted for clarification: Payment of travel expense and per diem to a State employee in charge of the operation of IBM machines while attending a training school in the operation of such machines.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John Ben Shepperd, regarding a legal question submitted for clarification: Authority of Board of Directors of Texas A.&M. College to sell "West Farm" of Arlington State College for the purpose of acquiring suitable land for additional buildings.

Study of a gas cooled reactor with design specifications providing for a source of high temperature heat to a stream of helium. This reactor, in turn, is used as a source of heat for the air stream in a gas-turbine power plant.

Investigation to evaluate some of the designs, techniques, and methods for fabrication of a root pass.

From abstract: "Detail and engineering drawings for the Engineering Test Reactor."

From introduction: "The development and demonstration of the natural uranium reprocessed plutonium cycle in power reactors is an important phase of the peaceful applications of nuclear energy."

Coatings examined were selected industrial finishes reported to have good resistance to corrosion and included epoxy resins reinforced with fiberglass. For screening purposes,this preliminary work was done on commercial sheet Mg to which had been applied a dichromate finish. The coatings were tested for impact resistance, corrosion resistance, abrasion resistance, and thermal shock resistance. Conclusions for further work are outlined.

None

This report presents details of the operations of the Savannah River Plant manufacturing division during the month of June 1956.

In the P234-5 Building operation, Task I consists of converting plutonium nitrate solution received from the primary separations plants to a plutonium oxalate slurry. The slurry is filtered and the filter cake is transferred to Task II while the filtrate is treated and returned for further processing in either Recuplex, Redox, or Purex. The basic Task II process consists of calcining the plutonium oxalate cake to form plutonium dioxide. The plutonium dioxide is then fluorinated to form plutonium tetrafluoride which is transferred to Task III for further processing. Various alternate schemes for increasing production have been studied by the Technical and Design Sections during the past several months. The results of these studies are available in references (10) and (11). It is the purpose of this document to describe in detail the new equipment required for replacing Task I and II and to serve as a basis for detailed design of the proposed project.