AC 150/5300-14A, DESIGN OF AIRCRAFT DEICING FACILITIES, …

For example, Boeing publication D6-58326-1, 747-400 Airplane Characteristics for Airport Planning, shows that winglets on the Boeing 747-400 range from approximately 22 feet (6.7 m) to almost 31 feet (9.3 m) above the ground. The designer must use the highest ground clearances provided by airplane manufacturers. d. Width of Structure. ................
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