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This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
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Airport_dolly entered the ranking for the first time today at position #. This is its highest position ever recorded.
This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-06-05 and was most recently seen on 2026-06-05.
Airport dollies for unit load device (ULD) and cargo pallets are standard sized flatbed trolley or platform, with many wheels, roller bars or ball bearings protruding above the top surface for easy loading and unloading of ULD and cargo pallets respectively. Since ULD/pallet rest on ball bearings, these dollies are equipped with hinge/locks to secure the position of the ULD/pallet on them during tugging transportation. The aviation industry adopted ULD/pallets to be lightweight containers and supporting platforms respectively, intended to be loaded into aircraft and fly along with their loads, they need to be minimum in weight and thus do not have wheels or strong base structure. Also, the ULD/pallets have stringent dimensional standard following the aircraft cargo bay dimension. Therefore, these dollies are custom designed to complement the ULD/pallet's dimension, hinge/fixture position, weak overall physical strength and transportation need. Advanced dollies for ULD and pallets, such as those used on an airport apron, may have the following specialized facilities:Rollers – Dollies have built-in rollers or balls bearings on the deck to assist in the moving of containers or pallets. Advance dollies have two sets of power driven rollers, one set moves the container forward and backward, and the other move it left and right. The precise movement is needed to align the center of gravity of the container to the center of the deck, or else the dollies may turn over when in motion. In addition, the containers or pallets on dollies are secured with built-in locks.
Revolving platform – Some dollies have a revolving platform to facilitate rotating the ULDs to the correct orientation before transferring them onto a cargo conveyor belt or ULD/pallet lift leading to the aircraft bay. Some revolving platforms are power assisted.
Brakes – Dollies have mechanical brakes which automatically lock the dolly wheels when the towbar is in the parked (vertical) orientation, and automatically release the dolly wheels when the towbar is in the towing (horizontal) orientation. No explicit manual locking/unlocking action by the operator is needed.
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