The grounding of the Chinese coal vessel on the Barrier reef bought back memories of the salvage of a grounded vessel off Newcastle in 07.
There was a lot of reporting of salvage related matters in the local press at the time, especially as it was no sure thing they could get it off Nobbys beach.
A couple of matters I recollect, I may be hazy here, but Marine Diesel is apparently extremely viscious (thick) and needs to be heated to even flow, and as such, is not at all amenable to being pumped off a stricken ship ( I dont know how much sense that makes, as presumably it is pumped on)
The vessel at Newcastle was empty, but even so, marine salvage experts were divided on best methods, and likelyhood of success.
Even moderate flexion on the "spine" of these vessels apparently causes damage that requires immediate major repair.
They need a big high tide to attempt salvage
btw, the grounding of that vessel was a mind blowing sight, it got hit with 18 metre waves and just surfed in like a popcork, what would be forgotten by now, is that 3 others missed the same fate by the skin of their teeth