A supercircular entry guidance concept designed for maximum monitoring capability
Reentry vehicle guidance system for automatic or manual range control and with pilot monitoring capability
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Reentry vehicle guidance system for automatic or manual range control and with pilot monitoring capability
Goddard Range and Range Rate System for near- Earth and cislunar cooperative target tracking, noting design and operation
Laser frequency stabilization methods are based on a frequency discriminant which generates an unambiguous deviation signal used for automatic stabilization. Closed-loop control stabilizes cavity length at a null point. Some systems have a stabilized ring laser using a piezoelectric dither and others use a Doppler gain tube.
Conceptual photo-scan tube avoids complexity of internal beam scanning and beam-current adjustment by optical scan readout. It differs from a conventional image orthicon in its use of an external oscilloscope tube.
Intermediate ring decreases the rolling speed of a ball bearing relative to the rotational speed of the shaft. It has raceways on its inner and outer peripheries and an additional row of balls. The modification permits operation at much higher shaft speeds than usual.
Rolamite, a mechanical suspension system, provides substantial reductions in friction in the realm of extremely low bearing pressures. In addition, rolamite devices are easily microminiaturized, are extremely tolerant of production variations and are inherently capable of virtually all functions to construct most electromechanical devices.
Mechanical impact system for earth landing of Apollo command module
Gaseous coolant to transport waste heat from fission-electric cell reactor to space power plant radiator
Comparative efficiencies of thin wall aerospace pressure vessels, emphasizing primary structural weight
Connector plug automatically minimizes arcing during mating and demating. This plug uses a high-resistivity outer sheath as an extension to the regular pin contact. It is used in atmospheres containing explosive gases, and reduces erosion at the contact surfaces where mating and demating are performed frequently.
Design, construction, and performance of manned space center acoustic laboratory for ground tests of Apollo spacecraft
Low profile bulkheads for launch vehicles and spacecraft compartments to obtain structural weight reduction
Mathematical model for subdividing and transforming polyhedron into structural sphere
Pump provides independent liquid-metal streams at a uniform flow rate. The toroidal magnet structure can accomodate any reasonable number of pump circuits. The power requirement is suited to the output voltage of the basic thermionic diode output.
Application of cross beam remote sensing technique to atmospheric research problems
Turbine blade designs considered for increasing load capacity covering tandem, jet-blade and base plain blade configurations and test results
Fiber-metal matrix composites for gas turbine blades, discussing stress rupture strength, modulus of elasticity, fabrication, etc
Seal operating temperatures, leakage (pressurizing gas flow), torque, and wear of a conventional circumferential shaft seal were measured and compared to those of a conventional seal modified to have self-acting lift geometries. Both seal types had a 2.625-in diameter bore and were operated at a sliding velocity of 150 ft/sec with differential pressures ranging from 0 to 100 psi. Results of this investigation show that the self-acting seal operated at lower bulk carbon temperatures with half the torque and approximately one-tenth the wear of the conventional seal. Seal leakage of the self-acting seal was of order of 0.04 scfm for pressures above 60 psi which is well within the accepted range for gas turbine engine applications.