Simulation of large-scale dynamic systems
The classes of large-scale dynamic systems are discussed in terms of modeling with emphasis on air transportation system modeling.
Roberts, L.↗
Engineering topics
Roberts, L.
Publications and source records attributed to Roberts, L..
Short-haul transportation in the 1980's
The requirements for short-haul air transportation services in the 1980 time period are analyzed. The identification of short takeoff and landing aircraft to perform this service is reviewed. The adequacy of technical programs for developing short-haul aircraft is examined. The characteristics of several candidate short-haul aircraft are described. A system analysis, to include the economic and environmental factors, is developed.
Roberts, L.↗
The promise of aeronautics
Socioeconomic changes in aeronautics, discussing faster long range aircraft, airport access problems, technological advances, short haul transportation and industry/government relations
Roberts, L.↗
Transportation to earth orbit - 1975-1985.
Crew and passenger transportation to and from space station orbits, discussing cost reduction possibilities with current or future technology
Roberts, L.↗
Designing the manned orbital telescope.
Design of 120-inch Cassegrain system for manned orbital telescope /MOT/
MANNED ORBITAL TELESCOPE /MOT/↗
Probe and lander design problems
Problems and technology requirements for design of unmanned Mars probe and lander
SPACECRAFT DESIGN↗
The overall spectrum of astronomical research possibilities utilizing manned earth-orbital spacecraft.
Astronomical research possibilities, using manned Earth orbital spacecraft
SPACECRAFT INSTRUMENTATION↗
Probe and lander design problems.
Unmanned planetary probe and lander capsule design, emphasizing Mars lander capsules
LANDING DEVICE↗
Exhaust jet-dust layer interaction during a lunar landing.
Exhaust jet dust layer interaction during soft landing on moon considering exhaust gasdynamics, surface erosion and visibility through dust cloud
LUNAR DUST↗
RADIATION AND ABLATION COOLING FOR MANNED RE-ENTRY VEHICLES
Comparison of foamed radiating materials with composite charring materials to evaluate their ablation and radiation properties for application to thermal protection for manned space vehicles
SPACECRAFT SHIELDING↗
Radiation and Ablation Cooling for Manned Reentry Vehicles
The necessity of reducing heat transfer to reentry vehicles has led I to the consideration of both radiative and ablation shields. The paper reviews briefly the heating problems for manned vehicles and the means whereby ablation and radiation afford thermal protection. The principal energy disposal and weight parameters are then presented and their relation to the vehicle and trajectory parameters is discussed. A comparative analysis of three types of ablation shield is made and broad conclusions are drawn as to the type of shield most appropriate to manned reentry vehicles.
Roberts, L.↗
Ablation for manned reentry vehicles
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Roberts, L.↗
A theoretical study of nose ablation
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Roberts, L.↗