The S-64 Skycrane is an twin-engine heavy-lift helicopter designed as an enlarged version of the prototype Flying Crane S-60.
Sikorsky S-64 Skycrane
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By McMaster_de @ 2015-04-01 10:25:32
Links: en.wikipedia.org
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Scavenger Hunt: Planes, Trains, Automobiles, and More: Sikorsky S-64 Skycrane