Originally Posted by m chappelow
From what i remember i think they are Avon commercial with just a few rnli modifications added to them .
in the past i have seen old d classes used at times as dedicated boarding boats.
I think Mart is right - they are usually Avon commercial SIBs with a few tweaks - IIRC they have similar floorboard setups to the D class and Y boat and they use the same anchor stowage as the D class.
A lot of them I think are kept ashore these days- Exmouth's used to be launched form a davit when they had a Trent on a mooring, Humber (hard boat not SIB) is launched from a davit, Appledore's is kept in the boathouse:
Fishguard has a SIB boarding boat - normally it is just connected to a pulley system to get from the pier to the boat, and it gets a fair bit of growth on it.
I think for the limited use most boarding boats get, a little bit of growth is not seen as a major issue.
I personally would not want to keep my SIB afloat - applying antifoul / removing growth will be an ongoing chore, and I would expect that antifoul would put potential buyers off when you come to sell.
Deflating / inflating the boat to keep at home is a bit of a hassle, but does at least mean if you want to use it elsewhere you do not have to go to the marina and collect it.
A 'versadock' would be great but more than a bit too pricey
I suspect keeping it on a trolley at the marina (if sufficiently secure) might be the best compromise - averaged across a season, time spent applying and maintaining antifoul and removing growth maybe more than the time spent launching and recovering.
If you have a set of transom wheels, you may even get away without a trolley - just fold the wheels up once ashore so the boat rests on its hull.