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Seven Arctic

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Views: 36

Comment by Flyer1 on October 11, 2017 at 22:21

Excellent image in full size Jack !

Comment by Jack Dryden on October 12, 2017 at 7:23
Thanks Flyer1 late afternoon
Comment by David Slater on October 12, 2017 at 19:20

Monster cranes Jack! Great shot

Comment by Jack Dryden on October 12, 2017 at 21:30
Thanks David
325T WILLIAM ARROL HAMMERHEAD CRANE
THE CRANE IS A REVOLVING CANTILEVER JIB TYPE WITH A MAXIMUM CAPACITY OF 325 TONNES AT 25.25 METRES RADIUS RANGING TO 100 TONNES AT 55.75 METRES RADIUS WITH INTERMEDIATE DUTIES.
IT WAS DESIGNED AND BUILT BY SIR WILLIAM ARROL IN THE EARLY 1930’S. IT IS SITUATED AT SHEPHERD OFFSHORE, OFFSHORE TECHNOLOGY PARK, WALKER, NEWCASTLE UPON TYNE.
The revolving jib has a double boom cantilever which is supported on a revolving frame (drum girder) which is carried on a live slewing ring at the top of the tower section.The front section of the cantilever carries the trolley from which the lifting hook is suspended. The rear section of the cantilever, carries the ballast weight and machinery house. The whole upper revolving assembly is designed such that the centre of gravity remains
within the pathway radius under all condition.
The slewing pathway is supported on a fixed tower which comprises of four main legs which are braced together. All of the structures are made from steel plates and sections which are riveted together.
Comment by Howard - Liverpool on October 15, 2017 at 8:27

Very nice Jack

Comment by Jack Dryden on October 15, 2017 at 16:13
Thanks Howard
Comment by Colin Smith on October 18, 2017 at 20:17

Fabulous full size Jack

Comment by Jack Dryden on October 18, 2017 at 20:24
Thanks Colin,I like taking photos from this location

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