xr-nut
GROUP W BENCH
What is a "lay ship". I'm finding your comments most interesting in this thread. learning something. thanksIt would take something like a deep water ROV boat or a deep water lay ship to recover it to the surface. ROV's can easily go that deep and hook up rigging. The vessels will have winches that can also reach those depths.
Just need something on the sub to rig to. Certainly can't just choke a strap around it yank on it.
Edit:
I worked on a lay ship that had a 400t winch for deep water work. We were working in 1500m (~5000') and just the empty winch wire was reading 75t on the load cell.