
1) Abandoned ships 2) Big oafs 3) Empty frames 4) Hatteras sights 5) Ships on the seafloor 6) Shipyard relics 7) Stripped-down vehicles 8) Sunken ships 9) Unwieldy fellows 10) Unwieldy ships 11) Unwieldy, rusty ships 12) Wrecked ships 13) Wrecked vessels
Found on
https://www.crosswordclues.com/clue/hulks

1) Prison
Found on
https://www.crosswordclues.com/clue/hulks

old ships, many relics of the Napoleonic Wars, their masts removed, anchored in the Thames and the Medway and used as prisons from 1776-1857. The practice started in 1776 when the American war prevented the transporting of convicts to America and conventional prisons were full. Abel Magwitch escapes from a prison ship in Great Expectations.
Found on
http://charlesdickenspage.com/glossary.html

ships in the Thames used as prisons
Found on
http://www.encyclo.co.uk/local/21814

Ships in the Thames used as prisons following the temporary suspension of transportation in 1776. Following the resumption of transportation in 1783 used continually until the mid nineteenth century for those awaiting their sentence.
Found on
http://www.oldbaileyonline.org/static/Glossary.jsp
No exact match found.