Aerospace & Aviation

The trajectory analysis behind this spacecraft's history-making flight to Venus, which reaches the high point of flyby on December 14, will become a fundamental operation for future deep-space flights.

Mechanism of flame stability in bluff bodies at low speeds

Ionization of nitrogen and oxygen molecules by beams - electron impact ionization and charge transfer neutralization

Nasa considers data collection satellite system - oceanographic & meteorological applications

Space programs summary no. 37-19 - vol iv, dec 1962 to jan 1963 - propulsion, telecommunications, instruments, mechanics, guidance

Low density thermal insulation materials for use above 3000-deg f

Chemical kinetics - hypersonic gas dynamics

The gas chromatographic separation of water and hydrazine has been accomplished on a column of Fluoropak-80 coated with 20% Ucon Oil 550X. This separation was applied to the determination of small quantities of water in hydrazine. An automatic integrator was used to make the analysis rapid and reproducible. This analytical scheme is simple and accurate for concentrations of water in hydrazine, ranging from 0.5 to 2.0 wt. %.

Electron microscopy and x-ray diffraction techniques have been used to follow the structural changes which accompany deformation in one lot of pyrolytic graphite when stress is applied parallel to the substrate direction. Basal slip and an increase in preferred orientation account for deformations up to 20%. Fracture across the basal planes with subsequent basal slip and an increase in porosity and a very slight increase in preferred orientation account for deformations above 20%. Rows of etch pits which may be dislocations parallel to the substrate direction were observed in a specimen heated without load to 3000°C.

Paints and solar reflectors as temperature control surfaces for spacecraft

Orbiting solar observatory, orbiting astronomical observatory, orbiting geophysical observatory

Fluorescent scattering in planetary atmospheres - ultraviolet spectrum

Effects of gaseous diffusion on rate of oxidation of metal forming volatile oxide

Band-head wavelengths of some radicals & their ions for intepreting ultraviolet spectra of dayglow, twilight & aurorae of earth, mars & venus

Earth-reflected solar radiation on spherical satellites in elliptical orbit