AHK
Senior Member
December 6, 2022 - Building F: The Tower Crane that begat the Derrick is now gone. The Derrick in its turn has begat another, smaller derrick, in order to remove the original derrick. Presumably, the components of this new derrick will be taken down by a hoist of some form.
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The larger derrick (was on the left, and shown in the linked picture above) has now been taken down by the smaller derrick on the right.