Everywhere Threads This forum This thread. One of the major uses of the Trimotor after it was superseded as a passenger aircraft by more modern aircraft like the Boeing or the Douglas DC-2 , then DC-3, was the carrying of heavy freight to mining operations in jungles and mountains. To increase cargo capacity, one unusual feature was the provision of "drop-down" cargo holds below the lower inner wing sections of the 5-AT version. Log in now. Similar threads.
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