Report regarding the ongoing development of both multi-alkali photocathodes and an improved photomultiplier.

Memorandum presenting a generalized analysis of the effects of turbojet propulsion system development and fuel selection on ability of a strategic bomber to perform desired and minimum missions. The variation of bomber performance using a hydrocarbon, boron, or nuclear fuel is discussed.

Report discussing testing of a model of the McDonnell F3H-2N to determine its pitch-up and buffet boundaries and its longitudinal stability and control data obtainable with the pulse-tail technique. Stability was found to be less at low trim angles of attack than at high trim angles of attack up to a point. The buffet boundary was not obtainable through this testing.

Memorandum presenting a computation and comparison of the thrust augmentation and accompanying total fuel flow for four afterburner fuels and a rocket. Four turbojet engines burning JP-4 primary fuel and several operating conditions were selected for the analyses.

Report presenting an investigation of the release characteristics of dynamically scaled stores carried internally in a simulated bomb bay at Mach numbers of 1.39 and 1.98. A model of the Republic F-105 half-fuselage and bomb-bay configuration was tested with four store shapes: the MK-7 store, the bluff store, the TX-28 store, and turnabout TX-28 store. Results regarding ejection photographs and data plots are also provided.

From Summary: "An investigation was made in the Langley low-turbulence pressure tunnel to determine the effect of size and location of a sandpaper type of roughness on the Reynolds number for transition. Transition was observed by means of a hot-wire anemometer located at various chordwise stations for each position of the roughness. These observations indicated that when the roughness is sufficiently submerged in the boundary layer to provide a substantially linear variation of boundary-layer velocity with distance from the surface up to the top of the roughness, turbulent "spots" begin to appear immediately behind the roughness when the Reynolds number based on the velocity at the top of the roughness height exceeds a value of approximately 600. At Reynolds numbers even slightly below the critical value (value for transition), the sandpaper type of roughness introduced no measurable disturbances into the laminar layer downstream of the roughness. The extent of the roughness area does not appear to have an important effect on the critical value of the roughness Reynolds number."

This paper contains tail and hull loads data obtained in an investigation of a l/15-scale model of the Goodyear XZP5K airship. Data are presented in the form of tabulated pressure coefficients over a pitch and yaw range of +/-20 deg and 0 deg to 30 deg respectively, with various rudder and elevator deflections. Two tail configurations of different plan forms were tested on the model. The investigation was conducted in the Langley full-scale tunnel at a Reynolds number of approximately 16.5 x 10(exp 6) based on hull length, which corresponds to a Mach number of about 0.12.

Report presenting drag data obtained from the flight of a 0.11-scale rocket-boosted model of the Chance Vought XF8U-1 airplane over a range of Mach numbers. Results regarding the duct performance, trim normal-force coefficient, total drag, internal and base drag, and external drag are provided.

Memorandum presenting tests of a scale model of a B-36J/RF-84F tip-coupled airplane in the 19-foot pressure tunnel in order to evaluate the flutter characteristics where bomber-body freedoms are allowed and to obtain an indication of the dynamic stability characteristics of the configuration. The variables studied in the investigation included skew angle of the fighter-bomber coupling, fighter longitudinal position, fighter and bomber loading, angle of sideslip, degrees of body freedom, and the number of fighters.

"A highly polished 15 degree included-angle cone-cylinder with hemispherical tip has been flown to obtain boundary-layer transition and heat-transfer data. The model was launched from a carrier plane at an altitude of 47,500 feet. Laminar flow existed at a Reynolds number greater than 38.5 x 10(exp) 6 on the cylinder when the model was at the peak free-stream Mach number of 8.17. The results indicate an appreciable and favorable effect of tip bluntness in raising the allowable skin temperature for a given boundary-layer transition Reynolds number" (p. 1).

From Introduction: "This report presents an analysis of the effect of variations in the work and requirements on the efficiency characteristics of single-stage, full-admission turbines."

From Summary: "A generalized analysis presents the effects of turbojet propulsion system development and fuel selection on ability of a strategic bomber to perform desired and minimum missions. The variation of bomber performance using a hydrocarbon, boron, or nuclear fuel is discussed. With chemical fuel, the effects of refueling are discussed. With nuclear fuel, the nuclear cruise-chemical dash bomber and the nuclear subsonic tug towing a chemically powered supersonic bomber are compared."

Memorandum presenting component interference studies that have been made in an attempt to explain the unexpected large loss in damping in roll which occurred in wind-tunnel tests at zero angle of attack for the Bell X-1A research airplane near a Mach number of 2.22. The studies include theoretical calculations of the effect of the body flow field on the wing damping in roll and measurements at several Mach numbers on the contribution of the individual components to the damping in roll.

Report presenting measurements of aerodynamic heat transfer at several stations on the 15 degree total angle conical nose of a rocket-propelled model in free flight at Mach numbers up to 5.2. Laminar, transitional, and turbulent heat-transfer coefficients are provided. Results regarding skin temperature time histories, transition, and computed skin temperatures are provided.

Basic information on the design of the Knolls Atomic Power Laboratory (KAPL) -120 loop.

From foreword: "This report consists of two volumes which comprise the Phase III Design Analysis for the Army Package Power Reactor." The first volume discusses design analysis of the reactor.

This monthly report from Savannah River Plant presents information on current activities at the 100 Area (reactors), 200 Area (separations plants), 300 Area (reactor fuels fabrication) and the 400 Area (heavy water). Also, utilities and general services present administrative, technical, and general information. The power ascension program and productivity improvement program are emphasized in the 100 Area report. Tritium processing, 200-F increased capacity, waste disposal, and the `25` process are described in the separations plant report. The increased productivity program in reactor fuels fabrication is described. And progress at the Dana plant and Savannah river plant on heavy water production is described.

This document presents monthly progress at the Savannah River Plant in the 100, 200, 300, and 400 Areas. In the 100 Area (reactors), the power ascension program, the productivity improvement program and general progress is given. Tritium processing, 200-F increased capacity, and waste disposal are reported for the solvent extraction plants in the 200 Area. The increased productivity program is reported for the 300 Area. Dana plant activities and 400-D progress are reported in the 400 area report (heavy water).

This monthly report from the manufacturing division presents progress on operations at Savannah River plant. Reports are given from the reactors, separations plants, reactor fuels fabrication, and heavy water production. Administrative details are also given from utilities and general services.

This document is the February 1956 Monthly Report of the Process Section/Manufacturing Division at the Savannah River Plant. It contains information on activities in each of the SRP areas (100-400 areas), as well as on utilities and general services.

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

This document is the January 1956 Monthly Report of the Process Section/Manufacturing Division at the Savannah River Plants. It contains information on activities in each of the SRP areas (100-400 areas), as well as on utilities and general services.

This document is the May 1956 monthly report of the Process Section/Manufacturing Division at Savannah River. It contains information on activities in each of the SRP areas (100-400 areas), as well as on utilities and general services.

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