Table IV.A.4.d-l. Free-Flyer vs. SPS Attached Locomotion • FREE FLYER - MOVEMENT NOT RESTRICTED IF CLEARANCE AVAILABLE - ORBITAL MECHANICS A FACTOR IN LONG TRANSITS - FORCE APPLICATION LIMITED TO THE REACTION THRUST CAPABILITY - COMPLEX REACTION CONTROL SYSTEM MUST STABILIZE THE FLYER, PROPELL THE FLYER, AND STOP AND START IT - REACTION JETS MAY CONTAMINATE SPS SUBSYSTEMS OR RESULT IN DAMAGE FROM JET IMPINGEMENT • ATTACHED LOCOMOTION - VERY LITTLE OR NO PROPELLANT REQUIRED FOR MANEUVERS - ORIENTATION REFERENCED TO SPS - TETHERED TO SPS - FORCE APPLICATION LIMITED ONLY BY STRUCTURE TO WHICH ATTACHED
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