Hey..
just thought I'd post a link to some images of a British Ketch rigged mortar vessel 1804. Its been a while since I have done anything with it due to time restraints, but now I have re-started in earnest.
Its my first 'plank on bulkhead' model, and has been very enjoyable to say the least.
http://picasaweb.google.co.uk/kennosen/MortarVessel02
Its a pity that CA didnt put these in as per Admiralty plans, and facilitate port, coastal bombardment battles... ah well, maybe a mod will save us.