After a 'hard' collision with a submerged object the keel has jammed fully extended. Will be slippimg in the next week or so to inspect and repair. Hopefully rectification will be relatively simple but would appreciate any advice from those who've had a similar experience.
Your drop keel sits on a fibreglass pad above the ballast keel slot, and if you have hit something really hard the fibreglass pad may have crushed and the keel jammed in it, it should free if the drop keel is forced back the opposite way.