UNT Libraries Government Documents Department - 14 Matching Results

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Quarterly Report October, November and December, 1956

Description: Methods of producing extremely clean surfaces on rolled Zircaloy-2 strip have been investigated. It has been found that the finer abrasives, 400 mesh or finer, are more effective than coarse types because of their ability to penetrate pits and crevices more readily. Two such cleanings, with an intermediate 35 v/o HNO3-5 v/o HF pickle, resulted in a microscopically clean surface. Ultrasonic inspection of the EBWR fuel plates has been completed during this quarter. Approximately 95% of the plates… more
Date: December 31, 1956
Creator: Foote, Frank G.; Schumar, James F. & Chiswik, Haim H.
Item Type: Refine your search to only Report
open access

Combined Effects of Wing Taper and Low Horizontal-Tail Position on Longitudinal Stability of a 45 Degree Sweptback Wing-Body Combination at Transonic Speeds

Description: Report presenting an investigation of the combined effects of wing taper ratio and low horizontal-tail position on the static longitudinal stability of a 45 degree sweptback wing-body combination with an aspect ratio of 4 at a range of Mach numbers. Results regarding tail-off pitch characteristics, tail-on pitch characteristics, and effective flow characteristics over horizontal tail are provided.
Date: October 31, 1956
Creator: Spooner, Stanley H.
Item Type: Refine your search to only Report
open access

Effect of Increase in Angle of Dead Rise on the Hydrodynamic Qualities of a Seaplane Configuration Incorporating High Wing Loading

Description: Memorandum presenting an investigation to determine the effects of increase in angle of dead rise on the overall hydrodynamic characteristics of a seaplane having a length-beam ratio of 15 and a wing loading of 120 pounds per square foot. In general, increasing the angle of dead rise from 20 to 40 degrees and 60 degrees improved the trim limits of stability and the range of center-of-gravity positions for satisfactory take-off characteristics.
Date: October 31, 1956
Creator: Kapryan, Walter J. & Weinstein, Irving
Item Type: Refine your search to only Report
open access

An experimental investigation at Mach numbers from 2.1 to 3.0 of circular-internal-contraction inlets with translating centerbodies

Description: Report presenting the total-pressure recovery characteristics of three circular internal-compression inlets with translating centerbodies at a range of free-stream Mach numbers. The inlets differed only in the shape of the internal compression contours. Results regarding the maximum pressure recoveries and pressure-recovery characteristics are provided.
Date: October 31, 1956
Creator: Mossman, Emmett A. & Pfyl, Frank A.
Item Type: Refine your search to only Report
open access

Static stability characteristics of a cambered-delta-wing model at high subsonic speeds

Description: Report presenting an investigation at high subsonic speeds to determine the static stability characteristics of a cambered-delta-wing model with wing dihedral angles of 20 degrees and 50 degrees. Results regarding the longitudinal characteristics and lateral characteristics are provided.
Date: October 31, 1956
Creator: Moseley, William C., Jr.
Item Type: Refine your search to only Report
open access

Wind-Tunnel Investigation of Two Vertical-Takeoff-and-Landing Jet Bomber Airplane Configurations at Mach Numbers of 1.94 and 2.40

Description: Report presenting an investigation to obtain information about the basic aerodynamic characteristics of two vertical-take-off-and-landing jet bomber airplanes, one with a high wing and one with a low wing. Results regarding pitch and sideslip are provided. The high-tail configurations were found to have higher lift-drag ratios for both high- and low-wing models.
Date: October 31, 1956
Creator: Jones, Robert A. & Rainey, Robert W.
Item Type: Refine your search to only Report
open access

Gas Cooled Nuclear Reactor Study

Description: 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.
Date: July 31, 1956
Creator: Thompson, A. S.
Item Type: Refine your search to only Report
open access

Flight Determination of the Lateral Handling Qualities of the Bell X-5 Research Airplane at 58.7 Degrees Sweepback

Description: Memorandum presenting the Bell X-5 variable-sweep research airplane tested primarily at 58.7 degrees sweepback to determine the characteristics at transonic speeds of a fighter-type airplane with extreme sweepback. Some of the dynamic and static lateral stability characteristics have been discussed previously. Results regarding the lateral control, roll coupling, lateral problems at high lift, wing dropping, rudder oscillation at supersonic Mach numbers, and some pilots' impressions are also pr… more
Date: May 31, 1956
Creator: Finch, Thomas W. & Walker, Joseph A.
Item Type: Refine your search to only Report
open access

Preflight and flight-test investigation of a 50-percent-magnesium 50-percent JP-4 slurry fuel in a twin engine ram-jet vehicle

Description: Report presenting an investigation conducted by means of preflight and flight tests to determine the performance of a 50-percent-magnesium 50-percent JP-4 slurry fuel in a twin-engine ramjet test vehicle. Data were obtained over a range of Mach numbers. Although a successful flight test was carried out, the performance obtained from preflight testing was below theoretical values.
Date: May 31, 1956
Creator: Trout, Otto F., Jr. & Kennedy, Thomas L.
Item Type: Refine your search to only Report
open access

A summary of NACA research on the strength and creep of aircraft structures at elevated temperatures

Description: Report summarizing research on the strength and creep of aircraft structural elements and components at elevated temperatures. Experimental data for aluminum alloy columns, plates, stiffened panels, and multiweb box beams are presented for temperatures up to 600 degrees Fahrenheit and compared with results predicted from materials data.
Date: May 31, 1956
Creator: Heldenfels, Richard R. & Mathauser, Eldon E.
Item Type: Refine your search to only Report
open access

Factors That Affect Operational Reliability of Turbojet Engines

Description: The problem of improving operational reliability of turbojet engines is studied in a series of papers. Failure statistics for this engine are presented, the theory and experimental evidence on how engine failures occur are described, and the methods available for avoiding failure in operation are discussed. The individual papers of the series are Objectives, Failure Statistics, Foreign-Object Damage, Compressor Blades, Combustor Assembly, Nozzle Diaphrams, Turbine Buckets, Turbine Disks, Rollin… more
Date: January 31, 1956
Creator: Lewis Laboratory Staff
Item Type: Refine your search to only Report
open access

Lift, Drag, Static Stability, and Buffet Boundaries of a Model of the McDonnell F3H-1N Airplane at Mach Numbers from 0.40 to 1.27, TED No. NACA DE 351

Description: "The National Advisory Committee for Aeronautics has conducted a flight test of a model approximating the McDonnell F3H-1N airplane configuration to determine its pitch-up and buffet boundaries, as well as the usual longitudinal stability derivatives obtainable from the pulsed- tail technique. The test was conducted by the freely flying rocket-boosted model technique developed at the Langley Laboratory; results were obtained at Mach numbers from 0.40 to 1.27 at corresponding Reynolds numbers of… more
Date: January 31, 1956
Creator: Crabill, Norman L.
Item Type: Refine your search to only Report
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