The 7107A-0 was used in the 43D50 propeller used on deHaviland Canada, DHC-4, Cariboo, there may be other aircraft. It was a 13 foot diameter propeller. The Cariboo was used by the US Army, and by Australia. The Cariboo was also the aircraft that got Oliver North in trouble for hauling stuff that was not necessary legal around, and then shoot down
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