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  • For instance, arm-and-hand signals used during the day may not be visible during darkness.

    FM 44-48 Appendix D - Stealth

  • Lift-off from the pickup zone.a. When the aircraft are loaded and ready for lift-off, the PZCO signals the flight leader using arm-and-hand or light signals.

    FM 90-4 Appendix A

  • The PZCO may use schedules, messengers, arm-and-hand signals, light signals, or (as a last resort) radio to order helicopter loads to move to the PZ.

    FM 90-4 Appendix A

  • Tom set the panel for "walking" and slipped in a punched tape to control arm-and-hand motions.

    Tom Swift Jr And His Giant Robot


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