The Mariner Mars 1969 scan actuator
Scan platform servomechanical actuator for Mariner Mars 1969 spacecraft, emphasizing gear arrangement and train dynamics
Perkins, G. S.↗
Engineering topics
Perkins, G. S.
Publications and source records attributed to Perkins, G. S..
Detenting servomotor Patent
Electromagnetic braking arrangement for controlling rotor rotation in electric motor
Perkins, G. S.↗
Precise gimballing mechanism
Prototype support mechanisms allow precise and repeatable gimballing of engines with a minimum of lost motion and backlash. It also minimizes the use of gears and reduces lubrication requirements for long time space operations of several years duration.
Ferrera, J. D.↗
Pulsed plasma microthruster applications and techniques.
Pulsed plasma microthruster, discussing solid propellant electrical thruster /SPET/ design, feed system and application for earth synchronous satellite
Larocca, A. V.↗
Development of solid propellant electric thruster systems for attitude control and station keeping of spacecraft.
Solid propellant electric thrustor /SPET/ using pulse plasma for spacecraft attitude control and stationkeeping
THRUSTOR↗
Ranger Block III attitude control system - Manufacturing, testing, and performance
Manufacturing, test program, and performance characteristics of Range Block III attitude control system
PERFORMANCE CHARACTERISTICS↗
Sleeve and cutter simplify disconnecting welded joint in tubing
To test equipment, welded tubing joints may have to be disconnected and rewelded. To eliminate rewelding, a nonstandard welding sleeve permits the tubing to be welded and then disconnected by a specially designed sleeve cutter. Use of this tool assures that only the sleeve is cut.
Perkins, G. S.↗