Analysis of Handling Qualities and Power Consumption for Urban Air Mobility (UAM) eVTOL Quadrotors with Degraded Heave Disturbance Rejection and Control Response
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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A video of the NASA Lunar Flight Deck (LFD) with a run time of 1 min. 15 sec.; in color; sound.
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A durable line valve utilizes stacked metal disks to seal off an inlet port. No packing or shaft sealing is needed, and the valve operates satisfactorily over a wide temperature and pressure range.
The use of a self-balancing I-beam with a counterweight and motor simplifies moving heavy loads that are inaccessible for cranes. The beam cannot be overloaded, as the counterweight will not balance the load, and thus acts as an automatic safety device.
Trajectory requirements for terminal lunar landing from analog simulation of spacecraft
Description of ground support systems for the surveyor lunar-landing spacecraft
Thermocouples are shipped and stored in hollow plastic hoops. The hoop is an inexpensive but efficient method of protection.
Ported ball valves are sealed under both static and dynamic load conditions by a line-pressure responsive double-acting seal. The top of the seal engages the ported ball at the outer circumferential edge of the seal upper end, and the bottom of the seal seats on a flat circular land with a continuous wall.
Bell X-14A test vehicle used to determine control power and damping requirements for V/STOL AIRCRAFT
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Procedures for cleaning, decontamination, and encapulation of electronic circuits containing metal-oxide silicon field effect transistors
Flight investigation of control qualities of rudimentary hingeless rotor helicopter
System and equipment descriptions of manned orbital research laboratory, and interplanetary and lunar ferry vehicles