Civil work so beamier hulls can come out of the water without a barge and a prayer.
Most of what limits a refit yard is not skill. It is geometry: how wide the bay is, how deep the water is at the sill, how much air draught there is under the lift, how far a hull can be moved once it is out. Those numbers decide which vessels a yard can accept before any conversation about capability begins.
Why beam is the binding constraint
Length is the number that gets quoted, because it is the number owners think in. Beam is the number that actually stops a lift. A hoist rated for a given tonnage can still be unable to take a hull whose maximum beam exceeds the clear width between its legs — and modern hull forms have been getting beamier faster than they have been getting longer.
The consequence for an owner is either a longer trip to a yard that can take her, or an alternative lifting method with its own cost and its own risk. Neither is a good answer when the underlying work is straightforward.
What the work involved
- Widening the bay so that clear width between the lift legs, not just rated tonnage, matches the hull forms now asking for space.
- Rebuilding the quay structure either side, because a wider opening changes how load is carried into the ground.
- Re-laying the hardstanding run so a wider hull can be moved from the lift to a covered position without a second handling operation.
Civil work of this kind is unglamorous and it is the least reversible thing a yard does. It is also the only category of investment that changes what is possible rather than what is convenient.
Capability is mostly geometry. Everything else is scheduling.
What it changes
Practically: a beamier hull can come out of the water, be moved under cover and be worked on in the dry without an additional lifting operation. Each handling operation removed is a cost removed and a risk removed, and risk in a lifting operation is not the kind that is worth economising on.
Commercially, it widens the range of vessels the yard can quote for honestly. There is a version of this business where a yard takes the booking and improvises the handling. We would rather do the civil work and be able to say yes without a caveat.
Written at the yard in Tuzla. Figures quoted are the ones we record on the job and hand over with the vessel.