Aerospace & Aviation
Reference documents in Aerospace & Aviation.
Documents in Aerospace & Aviation
Page 27 of 521-
Injun-Explorer satellite combination for simultaneous measurements of air density and atmospheric heating
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Electric power supply and distribution system for Lunar Mobile Laboratory VII /Molab VII/ VEHICLE
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Force coefficient and moment coefficient correlations and air-helium simulation of spherically blunted cones - hypersonic wind tunnel testing
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Radiation resistant white coatings for spacecraft
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Vacuum test chamber to determine explosion and detonation hazards from venting of hydrogen and oxygen propellants
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Nonlinear phenomena in single and multiple electron beams of infinite radius in nonplanar field
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Nonuniform plasma density effect on electron beam- plasma interaction in microwave amplifier
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Nonlinear theory of multistream devices - klystron, traveling wave tube, and backward wave oscillator
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Neutron detection system for space measurements
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Thin tungsten wire and tungsten tubing are brazed together using a contacting coil of nickel wire heated to its melting point in an inert-gas atmosphere. This method is also effective for brazing tungsten to tungsten-rhenium parts.
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Reinforcement core holds O-ring in place within a structure while adjacent parts are being assembled. The core in the O-ring adds circumferential rigidity to the O-ring material. This inner core does not appreciably affect the sectional elasticity or gland-sealing characteristics of the O-ring.
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Portable tool cleans and polishes the external surfaces of tubes and pipes without contaminating the interior areas with loose particles. The tool is driven by an electric drill and is connected to a vacuum source that removes debris resulting from the cleaning and polishing action.
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Hydrogen/oxygen regenerative fuel cell stores electrical energy efficiently and inexpensively. The fuel cell has a high energy-to-weight ratio, and is adapted for a large number of cycles with deep discharge.
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Two hermetically sealed, short travel, limit switches permit fuse replacement without danger of a spark or arcing. The switches are wired in parallel circuits and actuated by manually operated cams containing the circuit fuses.
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Signal acquisition and tracking system covering a wide range of frequencies uses a digital circuit to sample the frequency of an incoming signal and provide correction pulses to the voltage-controlled oscillator. The circuit can also sense the presence of a signal on any one of the input lines.