The following text from Aviation Week:
03/28/1960. The S-60 was first flown on March 25, 1959. As a
mine-sweeper, the S-60 has streamed out 600 ft (183 m) of cable and
minesweeping gear during a Navy demonstration.
01/23/1961. Sikorsky S-60 Skycarane hoisted an Army cargo container
weighing 3,800 lb (1,724 kg) from the hold of the US Army cargo
vessel Hickorky Knoll during a demonstration.... About two minutes
after lifting the container from the forward hold of the Hickory
Knoll, the two ton package was lowered to the bed of a truck on the
beach.
