Answer: autopilot

AnswerCrossword Clue
AUTOPILOT

A plane may be put on it

AUTOPILOT

Navigation aid

AUTOPILOT

Inflated "Airplane!" character named Otto

AUTOPILOT
Aviation's aid
AUTOPILOT
Cockpit option
AUTOPILOTUnthinking state
AUTOPILOTCockpit device
AUTOPILOTAircraft system
AUTOPILOTSteering system
AUTOPILOTHeading maintainer
AUTOPILOTCockpit aid
AUTOPILOTIt maintains a proper attitude
AUTOPILOTJust going through the motions, after "on"
AUTOPILOTAvation aid
AUTOPILOTCockpit "robot"
AUTOPILOTUse it to fly with no hands