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(or oxidizer) side, the ignition system, the television camera is a full-scale auxiliary power unit system. 4-16 4. ORBITER SYSTEMS Propulsion A ORBITER MANEUVERING SYSTEM........... 4-5 REACTION CONTROL SYSTEM 2 FUEL TANK CONTROLLERS өз DRAINS AVIONICS BAYS TACANS RADAR ALTIMETERS MSBLS RECEIVERS AIR DATA SENSOR (BOTH SIDES) a REMOTE MANIPULATOR i SYSTEM (NOT ON STS-1.