Английская Википедия:Hunter's Point crane

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Файл:Hunters Point Naval Shipyard 33.jpg
The crane in 2020.
Файл:Hunters Point Navy Yard crane in 1947.jpg
The crane in 1947

The Hunter's Point crane is a gantry crane located at the naval shipyard in Hunters Point, San Francisco.[1] When it was built, in 1947 to repair battleships and aircraft carriers, it was the largest crane in the world.[2][3]

It has a Шаблон:Convert capacity and was completed at the site by the American Bridge Company.[4]

When it was first built, it was used to lift 630 tons, which the San Francisco Chronicle reported at the time was the heaviest load ever lifted.[2]

In 1959, it was used for Operation Skycatch, where dummy Polaris missiles were fired and caught via a string of arresting cables, before being lowered to the ground for testing.[5] Previous versions of the test had the missiles flung out into the bay and retrieved from the ocean floor.[6][7]

A large trapezoidal frame was erected atop the gantry crane for the UGM-73 Poseidon missile test facility; the structural members were lifted by Marine Boss in 1967.[8] The addition of the frame brought the total height of the crane to nearly Шаблон:Convert. The crane dominates the landscape in the area, as it is easily visible from miles around.

Today, the site where the crane is located is a superfund site due to contamination by the military, and there is no public access.[9][10]

References

Шаблон:Reflist