From World Maritime News:
BOA Management Readies to Lift Norwegian Sinking Frigate
There's a ship under here
Norwegian offshore service provider BOA Management has started preparatory work for the salvage of now almost completely submerged Norwegian frigate Helge Ingstad.
The work is said to be supported by DNV GL as an external consultant.
The plan is to gradually lift the vessel and transfer it to one of semi-submersible barges of BOA Management.
The salvage operation is expected to last around three weeks. The frigate is expected to head for Haakonsvern, the main base of the Royal Norwegian Navy and the largest naval base in the Nordic area, at the beginning of December.
However, the overall salvage operation is dependent on many conditions including weather, stability of the vessel and environmental considerations, the Norwegian Navy said.
Once lifted, it would be possible to conduct thorough damage assessment of the vessel.
As World Maritime News reported, Helge Ingstad almost completely sank on November 13, despite being anchored to the land, with only the vessel’s radar tower protruding above the water.
According to the navy, there is still a risk that the vessel might slide further into the water. Activities are underway to stabilize the vessel....MOREEarlier (Nov. 8): "Norway's Equinor Announced They Restarted Operations at the Kollsnes Gas Facility, Britain Will Get Its Methane (and the ship that wouldn't sink)".
We've looked at heavy lift barges and ships a few times, most recently in 2016's "Sometimes You Need A Helping Hand". Because of the size of the load and proximity to the destination the Norwegians won't need one of the heavy lift ships, as noted above a barge should do the trick.
However, should the need arise...see the last photo below.
When the US Navy had their rash of collisions involving destroyers, ships larger than the Helge Ingstad, there were many stories on the ships that haul ships. Here's the MV Transshelf:
The
Arleigh Burke-class guided-missile destroyer USS Fitzgerald (DDG 62)
departed Pier 9 at Fleet Activities (FLEACT) Yokosuka, December 1, 2017.
U.S. Navy Photo
Here's the MV Treasure bringing the USS John S McCain back to the United States:
Both photos via gCaptain
And then there's the Pioneering Spirit.
Pioneering Spirit Sets World Lifting Record
The giant offshore installation and commissioning vessel Pioneering Spirit has set the new world lifting record with the successful removal of Shell’s 24,000 tonne Brent Delta platform in the North Sea in a single lift.
Lifting of the Delta topsides. Credit: Allseas
Pioneering Spirit’s owner Allseas confirmed the safe and successful completion of the topsides removal operation on April 28....
Yeah, it's basically two oil tankers strapped together catamaran style.
