| Navy Laboratory Interactive Graphics Study. |
MAR 1979 |
|
| Authors:
Dale Oliver Christensen; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
 | The objective of the Navy Laboratory Interactive Graphics Study (nligs) was to define the interactive graphics needs of the Navy laboratories in the present and in the future. In this study, interactive graphics refers to the minicomputer-based turnkey interactive graphics systems (MTIGSs). The seven Navy laboratories formally requested a total of 110 work stations under NLIGS. The application areas are documentation and drafting, mechanical design and layout, integrated circuit design, ... |
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| Ultrasonic Data Link Measurements. |
MAR 1979 |
|
| Authors:
Myren L. Iverson; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The ultrasonic data link concept described in this report will provide a link through a ships's structure between warning sensors and a ship's damage control center that is uninterruptible by fires or explosions. This concept is also compatible with other proposed data bus concepts and allows for graceful degradation. Included are the results of measurements made aboard Navy and Coast Guard ships of several important parameters that affect the ultrasonic ... |
|
| Applied Polarography for Analysis of Ordnance Materials. Part 3. Field Tests of NWC Digital Polarograph and Pollution Monitoring System. |
JAN 1979 |
18 pages |
| Authors:
Gerald C. Whitnack; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
 | A portable polarograph and pollution monitoring system, developed at the Naval Weapons Center (NWC) and described in Parts 1 and 2 of NWC TP 5860, was subjected to a series of field tests. The polarographic system monitored the nitrate esters 1.2-propyleneglycoldinitrate (PGDN) and/or propyleneglycolmononitrate (PGMN) in effluent water produced by a Wastewater Reclamation and Purification System design by the Navy to efficiently remove the pollutants from Otto Fuel wastewater. This ... |
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| Geothermal Potential at US Air Force Bases. |
NOV 1978 |
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| Authors:
Carl F. Austin; J. A. Whelan; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The Air Force has completed a study of the geothermal potential of USAF bases. This report lists the power generation potential, space or industrial heating potential, and geopressure potential at each USAF base. This report also discusses in detail the data available for those USAF base which exhibit the greatest potential for use of geothermal energy. Bases with significant potential that are discussed in detail include: Mountain Home (space heating), ... |
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| Boundary Conditions for Pollution Abatement of Fast Cook-Offs and Static Tests. |
OCT 1978 |
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| Authors:
D. R. Cruise; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The boundary conditions of military usefulness are considered for the static test of rocket motors and the fast cook-off of ordnance in fuel fires. A boundary may be geometrical, chemical, procedural or administrative in nature and represents a point beyond which the military value of the test is greatly diminished. In the case of administrative boundaries, it is possible that changes can be inititiated at higher levels in the Navy ... |
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| Safety Evaluation Tests of Personal Protective Equipment for Ordnance Operations. |
AUG 1978 |
44 pages |
| Authors:
Glenn C. Pritchard; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report presents and summarizes the results of tests conducted at the Naval Weapons Center to study the Effectiveness of personal protective equipment used in operations involving propellants, explosives, pyrotechnics, and other high-energy materials. Criteria used to evaluate the equipment and the limitations of each type of equipment are discussed. Variables to be controlled or included in future tests are also discussed. (Author) |
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| Critical Injection Velocities for Ignition. |
JUN 1978 |
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| Authors:
G. F. Kinney; R. G. S. Sewell; NAVAL WEAPONS CENTER CHINA LAKE CALIF
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| Forcible injection of combustible material into a closed volume of air can increase its temperature substantially either by molecular impaction on a blunt face of an object or by its kinetic energy loss on sudden deceleration. Injection velocities required to produce ignition temperatures by each mechanism have been computed for a variety of combustible and explosive materials. The two diverse methods of computation are in rough agreement, with representative velocities ... |
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| Pyroelectric Surface Acoustic Wave Scanned Imager Analysis and Testing. |
MAY 1978 |
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| Authors:
J. P. Rahn; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report covers information on pyroelectric imaging using SAW scanning. The results are applicable to other methods of image scanning as well. The possibility of using surface acoustic waves (SAWs) to scan optical images on semiconductors has been demonstrated. In order to do the analogous scanning of images in the infrared portion of the spectrum one has to cool the semiconductor to about 100 K. This increases initial system cost, ... |
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| Temperature Dependence of the Dielectric Constant of Quartz Polymide. Part 2. |
MAY 1978 |
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| Authors:
Fred C. Essig; James W. Battles; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The dielectric constant and loss tangent of quartz polymide were measured as a function of temperature, in the presence of flowing air, up to 1000 F. No significant changes were observed as a function of temperature. The average value of the effective dielectric constant was found to be 3.05 and the loss tangent to be 0.0021 at 35 GHz. (Author) |
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| Polymeric Binders which Reversibly Dissociate at Elevated Temperatures. |
MAY 1978 |
63 pages |
| Authors:
Ronald A. Henry; Eugene C. Martin; Warren J. Murbach; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The synthesis of polyurethane binders, which reversibly dissociate into liquid prepolymers and/or comonomers when heated to 140-150 C and which re-cure to polymer after several days at 25 C, is described. |
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| In-Flight Measurements of Captive Loads on a Store as Compared with Wind Tunnel and Mathematical Simulations. |
APR 1978 |
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| Authors:
A. R. Maddox; R. E. Dix; G. R. Mattasits; NAVAL WEAPONS CENTER CHINA LAKE CALIF
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| A series of flight tests were made to acquire captive loads data on a store to compare with corresponding data from several wind tunnel tests with conditions matched as closely as possible as well as with the best mathematical models available. The store consisted of a Mk 83 bomb shape mounted on a triple-ejector rack (TER) on an F-4 aircraft which was instrumented complete with a standard research boom mounted ... |
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| Temperature Profiles of Rail Transported Ordnance. Part 1. Desert Environment. |
APR 1978 |
|
| Authors:
Howard C. Schafer; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The Naval Weapons Center has been involved in the measurement of ordnance temperatures since 1964. This report describes conditions experienced by ordnance-carrying rail stock in extreme desert environments during the period 1970 through 1977. Results of temperature measurements are given, and cumulative probability figures that are usable in predicting temperatures that are likely to be experienced by ordnance-loaded boxcars and flatcars are presented. (Author) |
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| Conversion of Trash to Gasoline. |
APR 1978 |
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| Authors:
James Diebold; Garyl Smith; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report describes a thermochemical process through which organic waste materials found in municipal trash are converted into a high grade gasoline product. The process involves three major steps: selective pyrolysis to form gases relatively rich in olefins such as ethylene, propylene, and butylene; compression and purification of the pyrolysis gases to concentrate the olefins; and polymerization of the olefins to form polymer gasoline. Pyrolysis experimentation has resulted in about ... |
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| Antimisting Fuel Spillage/Air Shear Tests at Naval Weapons Center. |
MAR 1978 |
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| Authors:
Anthony San Miguel ; Marion D. Williams; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| A test apparatus consisting of a large-scale airfoil located within a temperature-velocity-controlled airstream was used to evaluate the fire suppression afforded by FM9 antimisting fuel additive in Jet A. A homogeneous low turbulence airstream between 100 and 170 knots was used to obtain crash-survivable antimisting fuel kinematic data. It was demonstrated that FM 9 could be an effective antimisting agent. The failure envelope for FM9 in 27 C Jet A ... |
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| Differential Scanning Calorimetry Studies of Some Electrolyte Systems Pertinent to Thermal Batteries. |
FEB 1978 |
|
| Authors:
Dwight A. Fine; Aaron N. Fletcher; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The thermal behavior of some electrolyte systems which are potentially useful in thermal batteries has been investigated by differential scanning calorimetry. The reactivity of calcium metal in molten nitrates and thiocyanates has been studied. The nitrate systems are the most promising. It has been found that a passivating layer of calcium oxide is formed on the metal in molten nitrates; this layer can be broken down in a controllable manner ... |
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| Finite Element Analysis of a Steel Canister Perforating a Steel Plate. |
JAN 1978 |
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| Authors:
Jan C. Schulz; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| Finite element analysis of the transient response of thin-walled structures subjected to impact loadings becomes more complicated when a lack of axisymmetry requires a three-dimensional treatment. In such cases careful modeling is needed to provide sufficient solution accuracy while at the same time keeping computer costs down. In this report the analysis of one such structure, a cylindrical steel canister with a large circular hole in its side, is described. ... |
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| Display Size and Target Acquisition Performance. |
JAN 1978 |
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| Authors:
Michael J. Barnes; NAVAL WEAPONS CENTER CHINA LAKE CALIF
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| Two experiments were conducted to find factors that have an important effect on display size criteria in a cockpit-display system. Subjects in both experiments detected military targets simulating images from a TV camera looking obliquely forward as it is flown over the terrain. The results of the two experiments indicated that the physical size of a television monitor is not an important factor if MTF and visual angle are held ... |
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| Pulsed HF/DF Laser Damage in Window Materials. |
DEC 1977 |
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| Authors:
M. J. Soileau; E. W. Van Stryland; M. Bass; C. C. Tang; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| Laser damage thresholds are reported for several alkali-halides, alkaline earth fluorides, ZnSe, As2S3, sapphire, spinel and quartz at HF (2.7 micrometers) and DF (3.8 micrometers) wavelengths. A low pressure, transversely excited, double discharge laser and two different focal length lenses were used. A gaussian spatial beam distribution was obtained by spatially filtering out high order modes in the far field of an unstable resonator cavity. Sapphire was found to have ... |
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| Variations in Optical Reflectivity of Sputter Deposited Metal and Semimetal Films. |
DEC 1977 |
20 pages |
| Authors:
H. F. Blazek; G. H. Turner; C. W. Cutsinger; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The surface structure of vacuum sputter deposited metal and semimetal films can be varied by changing the substrate bias potential and the total time of deposition. The corresponding change in the optical reflectivity can be related to enhanced scattering and absorption effects. Reflectivity measurements over the infrared range from 1 to 7 microns are presented and discussed for titanium, antimony, bismuth, and copper films. Results for the metal films, copper ... |
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| Temperature Dependence of the Dielectric Constant of Quartz Polymide. |
DEC 1977 |
|
| Authors:
James W. Battles; Karl D. Kuehn; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| A doppler generator was used to measure the complex dielectric constant of quartz polymide at 35 GHz from room temperature to 840 F (450 C). (Author) |
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| Structural Analysis Programs Applied to Warhead Impact Problems. |
NOV 1977 |
|
| Authors:
W. J. Stronge ; J. C. Schulz; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report is concerned with the application of general purpose finite element structural analysis programs to warhead design work. The capabilities of a number of linear and nonlinear programs including NASTRAN, SAP IV, ADINA, and HONDO are described. These programs are used to solve a number of impact-type problems ranging in complexity from a simple one dimensional rod to a conical steel warhead filled with explosive. The results are compared ... |
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| Explosion Hazards Associated with Spills of Large Quantities of Hazardous Materials. Phase II. |
NOV 1977 |
|
| Authors:
C. D. Lind; J. C. Whitson; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report documents the results of Phase II of a program aimed at quantifying the explosion hazards associated with spills of large quantities of hazardous material such as liquefied natural gas and liquefied petroleum gas. The principal results of this phase of the work are: a quantitative empirical description of the burning behavior in fuel-air mixtures, an examination of flame acceleration processes, the observation that, in 17 large scale burn ... |
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| Characteristics of Large Millimeter and Submillimeter Wave Reflecting Antennas. |
OCT 1977 |
|
| Authors:
West E. Katzenstein; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This document examines characteristics of large reflecting antennas at short (millimeter and submillimeter) wavelengths, emphasizing analysis of their susceptibility to interference from off-axis directions. Allowable deviations from the desired reflecting surface are measured in terms of wavelengths; and, the required tolerances become severe at millimeter and submillimeter wavelengths. Energy transmission at angles outside of main beam and the near sidelobes is due to energy from the feed not intercepted by ... |
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| Coso Geothermal Corrosion Studies. |
OCT 1977 |
|
| Authors:
Stephen A. Finnegan; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report documents the results of geothermal corrosion studies conducted at the Coso Thermal Area, Naval Weapons Center, China Lake, California. Nine different common construction-grade piping materials were tested for periods up to about one year in three distinctive low-pressure, medium temperature environments (acid-sulfate steam, groundwater-diluted steam, and hot mineralized alkaline water) under anaerobic and aerobic conditions. Exposed specimens were analyzed principally by optical microscopy and X-ray diffraction techniques, and ... |
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| Standard Electronic Parts List. |
SEP 1977 |
|
| Authors:
NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This Standard Electronic Parts List is intended to provide the technical baseline for standardizing parts selection in the design and production of electronic systems. The intent of this list is to focus part selection efforts on a reduced number of parts with known reliability, thereby reducing systems and logistics costs while improving part quality, reliability, and availability. This list is limited to the following types of electronic devices: Capacitors, Fixed; ... |
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| Ship Acquisition on Television: Three Laboratory Experiments. |
AUG 1977 |
|
| Authors:
Hubert O. Whitehurst; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report consists of a summary of three laboratory experiments on ship acquisition on television, plus information on how to apply the prediction equations that are included. Examples are given, along with limitations on the conditions under which the equations can be used. Some comparisons of the results of these experiments with the results of similar studies are also included. Experimental I was conducted to determine the relative importance of ... |
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| Automatic Gain Control: A Practical Approach to its Analysis and Design. |
AUG 1977 |
|
| Authors:
Richard Smith Hughes; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| Automatic gain control (AGC) provides the capability to normalize wide input signal variations into predictable small output variations. AGC has application to radio, television, and radar systems. The AGC loop will normalize the received signal in a radio to keep the sound level constant and independent of input signal level; in a radar receiver the AGC loop will normalize the input signal prior to direction-of-arrival-signal processing. It is not uncommon ... |
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| Report on the Design of a Hand Thrown Avalanche Control Charge for the USFS. |
JUN 1977 |
|
| Authors:
William F. Daniel; Carl F. Austin; Ronald R. Clodt; Samuel W. Kendall; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The Naval Weapons Center (NWC), China Lake, was tasked by the USFS Missoula Equipment Development Center, Missoula, Montana, to develop a two pound avalanche control charge which can be hand thrown with a two minute delay and has the potential to be launched from a helicopter. Later communication from the USFS reduced the required time delay to 90 seconds. Specifically, NWC was asked to design a package which would be ... |
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| Reduction and Ammonolysis Products Derived from Isomeric Trinitrotoluenes. Synthesis and Chemical Stability of the Aminodinitrotoluenes. |
JUN 1977 |
|
| Authors:
Arnold T. Nielsen; Ronald A. Henry; William P. Norris; Ronald L. Atkins; Donald W. Moore; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The reaction of ammonia with the six isomeric trinitrotoluenes has been examined. Syntheses of eight aminodinitrotoluenes, including all derived by ammonolysis of the five unsymmetrical trinitrotoluenes, and reduction of 2-4-6-trinitrotoluene (Alpha-TNT), are described. Synthesis of the sixteenth, and only previously unreported aminodinitrotoluene isomer, 3-amino-2-5-dinitrotoluene, has been achieved. Nuclear magnetic resonance spectra support the structure assignments. Impact sensitivities and decomposition temperatures (determined by differential thermal analysis) were determined for all eight ... |
|
| Synthesis of the Laser Dyes, AC2F and AC3F, and Related Compounds. |
JUN 1977 |
|
| Authors:
Ronald A. Henry ; Peter R. Hammond; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The synthesis of the laser dye, AC2F, which is 2-oxo-6,9-dimethyl-4-trifluoromethyl-6,7,8,9-tetrahydro-2H-pyrano(2,3-b)(1,8)naphthyridine, in nine steps from readily available starting materials is described. AC3F, which is the homologous 6,8,9-trimethyl compound, is made in six steps. Several related azacoumarins and azaquinolones, which fluoresce in the range 393-482 nm in ethanol, have also been prepared. In addition, 2-oxo-6,9-demethyl-8-phenyl-4-trifluoromethyl-6,7,8,9-tetrahydro-2H-pyrano(2,3-b)(1,8)naphthyridine has been made from 7-hydroxy-1,4-dimethyl-2-phenyl-1,2,3,4-tetrahydro-1,8-naphthyridine and sulfonated to furnish a water-soluble fluorescer (473 nm). (Author) |
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| Theory of Dielectric Optical Waveguide and Bending Losses. |
MAY 1977 |
|
| Authors:
L. D. Hutcheson; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report contains a review of those theoretical aspects of integrated optics which are pertinent to the bending loss studies under way at NWC. Guided modes and their solutions and an introduction to the bending losses in optical dielectric waveguides are presented. The density of optical components on an integrated optical circuit is limited by the loss due to bends in the optical waveguides. This is a report on a ... |
|
| Cinephotomicrography and Scanning Electron Microscopy as Used to Study Solid Propellant Combustion at Naval Weapons Center. |
MAY 1977 |
49 pages |
| Authors:
Thomas L. Boggs; James E. Crump; Karl J. Kraeutle; Donald E. Zurn; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report discusses cinephotomicrography and scanning electron microscopy, and how these techniques have been used by investigators studying solid propellant combustion. The elements required for taking and using high speed, high magnification motion pictures - cameras, lenses, window bombs, light sources, timers, hot-stage microscopes, motion analyzers - are discussed. The principles and equipment needed for scanning electron microscopy are also discussed. |
|
| Project Foggy Cloud VI: Design and Evaluation of Warm-Fog Dispersal Techniques. |
MAY 1977 |
|
| Authors:
R. F. Reinking; R. S. Clark; W. G. Finnegan; T. L. Wright; J. W. Carroz; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The Naval Weapons Center, working in collaboration with various activities listed herein, conducted a series of warm-fog modification experiments under Project Foggy Cloud VI. Electrostatically-charged droplets dispensed from aircraft to induce fog droplet coalescence and rainout, and electrostatically-charged bubbles dispensed from the surface to collect and precipitate fog droplets were techniques tested at the Arcata-Eureka Airport in northern California. The spreading and maintenance of monomolecular films on the water surface ... |
|
| Vibrational Response Spectroscopy (VRS). Extension of Acoustic Emission Techniques to Combustion Diagnostic Use. |
APR 1977 |
|
| Authors:
John L. Eisel; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| Vibrational response spectroscopy (VRS) is an attempt to adapt a relatively new technology to the study of the transition from deflagration to detonation (DDT) of high energy solid propellants. This technology is actually two technologies very similar in concept but differing greatly in their range and area of application. They are vibrational analysis (the response of mechanical devices and structures to imposed mechanical vibrations), and acoustic emission (AE) analysis (the ... |
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| Fuel Cost Escalation Study. |
APR 1977 |
|
| Authors:
Ellis E. Kappelman; Stephen M. Lee; Ruth F. Klever; D. R. Cruise; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| A fuel and energy cost escalation study was conducted to provide a projection of the costs of fuel oil, natural gas, coal and electricity to the year 2020. Upper and lower limits on probable prices are provided as well as most probable prices. These price projections were made based on examination of the nation's energy use, growth, resources, and price structure. (Author) |
|
| Electron Resists. |
APR 1977 |
|
| Authors:
P. F. Ordung; J. Applebaum; H. F. Blazek; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report is a survey of the work on electron-beam resist materials as reported in the open literature. The period surveyed does not go beyond 1 January 1977. (Author) |
|
| Electron Beam Microfabrication Systems. |
APR 1977 |
|
| Authors:
P. F. Ordung ; J. Applebaum; H. F. Blazek; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report is a survey of electron beam microfabrication systems reported in the open literature as of 1 January 1977. Two categories of systems are identified based upon either beam scanning or beam projection as the image forming mechanism. In general, beam scanning systems provide higher resolution and accuracy while beam projection systems are used to obtain a larger throughput. (Author) |
|
| Transmission of Monochromatic Electromagnetic Waves through Systems Consisting of Multiple Layers of Materials Exhibiting Birefringence or Faraday Rotation. |
MAR 1977 |
|
| Authors:
David J. White; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The problem of plane electromagnetic wave propagation through systems consisting of plates or layers of birefringent or gyroelectric materials is considered. Scattering matrices for the two types of layers are given, where propagation is normal to the plates and along a natural axis or the Faraday direction. The equations for converting the 4 x 4 scattering matrices to 4 x 4 transmission matrices are given. The overall transmission matrix for ... |
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| Calculation of Effective Ozone Absorption Coefficients for a Rocketborne Ozonesonde. |
MAR 1977 |
|
| Authors:
Marian E. Hills; Czerna A. Flanagan; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The measurement of the transmittance of filters used in a rocketborne ozonesonde and the calculation of effective ozone absorption coefficients from the transmittance data are described. (Author) |
|
| Naval Weapons Center Version of the Atmospheric Transmittance Computer Code LOWTRAN: User's Manual and Program Listing. |
MAR 1977 |
|
| Authors:
William M. Cornette; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| LOWTRAN is a FORTRAN computer program, developed at the U.S. Air Force Geophysics Laboratory (AFGL), which calculates the transmittance of the earth's atmosphere in the spectral region from 0.25 to 28.57 micrometers with 20 cm spectral resolution on a linear wavenumber scale. A choice of six atmosphere models covering seasonal and latitudinal variations from sea level to 100 km are available, in addition to a capability of allowing the user ... |
|
| Color Coding--An Annotated Bibliography. |
MAR 1977 |
|
| Authors:
Dan W. Wagner; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| Fifty-seven documents were annotated for the purpose of presenting current information on color coding research and other applications of color for use on television. This selective review includes, in addition to a written summary of the work, figures and tables from many of the publications to graphically illustrate or clarify key points. Numerous periodicals, books, and reports were reviewed. While the review is extensive, it is not comprehensive in that ... |
|
| GATOR/AV-8A Environmental Captive Flight Vibration Response Tests. |
FEB 1977 |
|
| Authors:
K. T. Katsumoto; W. W. Parmenter; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| A series of flights using an AV-8A aircraft and the GATOR weapon (Navy version, Mk 7 dispenser) were made. Vibration and acoustic responses were measured for this externally carried ordnance during typical flight conditions. Acceleration power spectral density plots are presented and test levels are recommended. |
|
| Effect of Injector Design on External Burning of Solid Propellants in Mach 2 Airstream. |
FEB 1977 |
|
| Authors:
Klaus C. Schadow; Don J. Chieze; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| Injector concepts and propellant formulations were evaluated under simulated external burning conditions in a planar, two-dimensional wind tunnel. The ratio of base pressure rise to propellant mass flow was significantly improved by reduction of the injection velocity from supersonic to subsonic speed, the use of a downstream-facing step upstream of the supersonic and subsonic injector, and the use of magnesium loaded propellants. |
|
| A Technique for Measuring Optical Line of Sight. |
JAN 1977 |
|
| Authors:
Carol J. Burge; Judith H. Lind; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report is a companion to NWC TP 5908, Line-of-Sight Handbook. Its purpose is to explain how the data were collected and the computations made to produce the data presented in that report. The objective of this masking measurement program is to present probability of line of sight (LOS) as a function of terrain, range, and altitude. Preparation of the handbook included carrying out a literature search, to determine if ... |
|
| Experiments with Color Coding on Television. |
JAN 1977 |
|
| Authors:
Dan W. Wagner; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| Three experiments were conducted to investigate the effectiveness of color in a potential cockpit application. The experiments measured the subjects ability to monitor random malfunction indications, shown in either color-coded, single color, or black-and-white conditions on simulated engine management displays. The subjects were simultaneously engaged in a dynamic target detection task on an adjacent display during the monitoring task. Ambient illumination color and subject experience were additional variables. The results ... |
|
| Analysis of RDX and HMX in Admixture by Single-Sweep Polarography. |
DEC 1976 |
|
| Authors:
Gerald C. Whitnack; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report presents and describes a new polarographic analytical procedure that should prove useful in the direct analysis of RDX and HMX in admixture. The single-sweep technique is rapid and sensitive to about 50 parts-per-billion of either RDX or HMX alone or in admixture in effluent for natural water. The method can also be used to analyze for HMX as an impurity in manufactured RDX or for RDX that may ... |
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| Heat Exchanger Technology Needs for Conservation Research and Technology, ERDA. |
DEC 1976 |
|
| Authors:
W. H. Thielbahr; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| This report summarizes the results of a survey taken by the author, whose purpose was to identify current and future heat exchanger needs within the Division of Conservation Research and Technology (CONRT) of the Energy Research and Development Administration (ERDA). As background information, for those who may be unfamiliar with CONRT, the function and responsibility of CONRT is to provide technology required for successful development and implementation of advanced energy ... |
|
| Aircraft Fire Simulator Testing of Candidate Fire Barrier Systems. |
NOV 1976 |
|
| Authors:
Herman H. Hoffman; John S. Fontenot; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| The results of a study to evaluate candidate aircraft fire barrier materials to in-flight fires are presented. Four organic materials, two inorganic materials, and three metallics combined with insulators were tested in an in-flight fire simulator. Eight intumescent coatings were evaluated to determine their ability to close barrier gaps in the event of a fire. (Author) |
|
| Transmission of Telemetry Data by Existing Television Systems. |
OCT 1976 |
|
| Authors:
James L. Rieger; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| By encoding an existing TV system in which the signal contains predictable patterns or redundancy, each of which implies that less than an available bandwidth is being used, it is possible to transmit telemetry data and video simultaneously. A nearly orthogonal system could be inserted into blank portions of an existing black-and-white or color video presentation. Theoretically at least, the added data stream should not affect the existing picture, nor ... |
|
| Applied Polarography for Analysis of Ordnance Materials. Part 2. An Inexpensive Solid-State Field Polarograph with Digital and Analog Output. |
SEP 1976 |
23 pages |
| Authors:
Walter J. Becktel; Gerald C. Whitnack; NAVAL WEAPONS CENTER CHINA LAKE CALIF
|
| A new rapid, specific, and unique polarographic method of analysis of 1,2-propyleneglycoldinitrate (PGDN) in effluent water is described. A portable and inexpensive digital polarograph and monitoring system, built at NWC, are presented for the field analysis of PGDN in an effluent water obtained from a Navy carbon column cleanup process to remove the explosive from Otto Fuel wastewater. Data obtained by the NWC-developed method of analysis and field equipment compare ... |
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Reports by Corporate Author
