Cinefluorography of small ablative thrust chambers during hot firing.
X-ray image intensifier in conjunction with motion picture film sequencing of thrust chamber image during hot firing to obtain failure analysis data
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X-ray image intensifier in conjunction with motion picture film sequencing of thrust chamber image during hot firing to obtain failure analysis data
Optimal free-space fixed thrust trajectories using impulsive trajectories as starting iteratives
Low thrust trajectory optimization, using Newton- Raphson method to solve nonlinear two-point boundary value problem
Low thrust divergent flow cesium-on-tungsten contact ionization electrostatic thrustor for satellite attitude control and stationkeeping missions
Digital computer program for solution of space- charge-flow problem applied to design of thrustors with variable thrust vector, analyzing two ion- thrustor configurations with aid of computer
Simple control reference as aid to thrust axis orientation during ascent of lunar module from lunar surface to circular orbit and rendezvous with command and service module
Propulsion requirement for high-thrust round-trip trajectories to Jupiter
Nonlinear feedback solution for minimum-time injection into circular orbit with constant thrust acceleration magnitude
Two-variable asymptotic solution for three-dimensional solar powered low thrust trajectories in vicinity of ecliptic plane
Test firing evaluation of six ablative-material thrust chambers as components of storable propellant rocket engines
Activation and initial test operations of thrust chamber facility for NASA M-1 rocket engine
Precision flow measurement techniques for low thrust auxiliary propulsion liquid rockets
Effect of several injector face baffle configurations on screech in 20,000-lb thrust hydrogen-oxygen rocket
Advanced low thrust propulsion systems and propellants evaluation for stationkeeping and stability control of NASA Manned Orbital Research Laboratory
Quasi-linearization determination of optimum finite thrust and impulsive orbital transfers
Low thrust divergent flow cesium-on-tungsten contact ionization electrostatic thrustor for satellite attitude control and stationkeeping missions
Motion equations of spin-stabilized rocket under thrust with jet damping, variable mass and momentum effects and all angular disturbances
Suboptimal feedback solution to guidance and control in minimum time and fuel for low thrust orbital transfer