NASA Technical Note

accelerator air-melted buckets alloy analysis approximately arc-cast argon as-cast assumed balls billets boundary layer calculation carbide Chamber pressure Chamber temperature computed constant cracks cylinder dead band deceleration density determined distance distribution downstream electron engine equation equilibrium composition error evaluated extrusion fracture fuel guidance hardness heat flow rate heat transfer heat-transfer coefficient inch Inconel increment indicated initial integral curves isentropic lb/sq Lewis Research Center Mach number material maximum measured melting method NACA NASA neutralizing grid nitrogen nondimensional nozzle Nozzle-exit Nusselt obtained operation orthohydrogen parameters percent perigee plug potential PRESSURE RATIOS propellant pump radii range reference resistors Reynolds number Rockwell Rolling-contact fatigue shown in figure sintered solution specific heat specific impulse specimens station stress-rupture supersonic surface target thermal thermocouple thrust tion trajectory tungsten turbine turbojet uranium dioxide vacuum vacuum-melted values variation velocity viscosity wall