| 摘要 |
A visual display used to indicate when aircraft wheel chocks have been inserted against the aircraft tires and the tarmac. The display is mounted on the exterior of an aircraft terminal at an elevation that is easily viewable by an aircraft operator. The indicator system contains illuminated characters operated from an electrical switch. The electrical switch is located remotely from the display where it is accessible by personnel standing on the tarmac. The switch positions include "OUT" and "IN". When the switch is moved to the "IN" position, the arrow characters are illuminated. When the switch is moved to the "OUT" position, the arrow characters are not illuminated. This system provides a safe and efficient means for ground personnel to signal the aircraft operator that the wheel chocks are in place against the aircraft wheel assembly.
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