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Sikorsky S-31


The 1925 five-seat S-31, with a 200hp Wright J-4 Whirlwind engine, was used by the Fairchild Company for aerial photo-mapping work in South America.

Up to four passengers, or photographic equipment, could be carried in the semi-closed centre cabin.

During flight testing, the S-31 climbed to 4680m in 47 minutes with a pilot, two passengers and fuel for four hours of flying.



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