Railgun thruster
Re-orientation of a spacecraft relative to its angular momentum
Reaction wheel and method of safing wheel
Reaction wheel desaturation apparatus
Reaction wheel fricton compensation using dither
Reaction wheel speed observer system
Reaction wheel system with vernier control rotor
Recovery system
Redundant energy storage device having momentum wheels
Redundant system for satellite inclination control with...
Rendezvous docking optical sensor system
Rendezvous spacecraft collision avoidance device
Retry/recovery method in rendezvous maneuver
Reusable booster for the first stage of a launcher
Robust singularity avoidance in satellite attitude control
Rocket deceleration system
Rocket engine nozzle throat plug engine recovery system
Roll/yaw body steering for momentum biased spacecraft