Have had very little chance to sail 3324 since I got her due to crew issues however yesterday I lent her out to a friend and his Sailing Instructor daughter as their Fireball is currently under repair. It was quite windy and in the end they went for a swim - what concernns me is the total lack of bouyancy in the boat. The front tank was Ok (thank god or the boat would have been lost and the rear tanks had a little water in them - however not enough to cause the boat to be so low in the water as to be unrecoverable by the occupants. In the end crew was taken aboard the rescue boat and boat ws towed in.
Andy it depends on the tank as there are several shapes of tank. My experiance of a rear tank in my last boat was that it floated higher than bags and was empty rather quicker.In fact one of Phil Kings old boats 'Bananarama' had a very shallow rear tank at floor level with almost no transom so as to sail the water straight out and that floated well too. I would suggest your mates where either too far aft when full or there was rather more than a bit of water in the tank.
I had a rear tank on one of my boats. We even put a drain plug through it. Never drained well on the water and susceptible to clumsy foot stomp damage. Not my favourite Merlin.
It's a Rowsell boat so it should be OK, and it must have passed it's initial buoyancy test on measurement.
Thanks for the input guys. My boat doesn't have flaps - it's an open transom job and the rear tank is split in two internally. One tank was dry - the other quite full and the boat was really sufferring. Having said that - i don't really know where the guys were in the boat so that may have some bearing...will just have to wait until I stuff it in myself and see what happens!
Andy. I had the same experiences earlier this year with my nsm4 with rear tank (3389). If the boat filled up, it would take forever to empty as the tank at the rear would prevent efficient discharge from the higher positioned transome flaps. The boat was very very low on the water and I too had to be recued because the boat wouldn't empty at all as no speed could be gained, hence chicken and egg!
Intersting old thread. I have recently been swimming with 3463, Bagley NSM2 with rear tank... can't get the water out the back even if we sit on the transom and get her moving well on a reach as the tank is so high. Has anyone ever fitted tunnels through the rear tanks?
Stuart Bates (MR3615)
There are quite a few of the Bagley boats that have tubes through to the Transom, just need to remember the rules on Openings on the Transom and flaps.
The counter to the problems with the amount of water aboard after capsize in a Merlin was brought home to me when race officer at Hampton and one of the modern GP14's with double bottom etc. went over. It was floating so high on it's side that it was not possible for the (admittedly not agile) crew to get on to the board from the water and they needed to be rescued. Far better to have a boat that comes up easily and is then nice & stable. Have been reading the thread on aft tanks with interest, Andy Hay's conversion looked really good & it does stiffen up the aft structure significantly.
Andy Hay - Business as Usual
Interestingly enough, we have significant opportunity to check the buoyancy arrangements at botht eh Champs and later at Weymouth. Maybe increased the tendancy to invert, but I had ample opportunity to climb over with the boat on her side. Much better with the hoop as a step!!
Andy I tested the buoyancy more at Lyme than I ever remember doing before, (8 including 3 in one race) and one other issue with the bags for wooden boats is that there's not much meat for the screws to hold into for the bag straps & I had to repostion some of the fittings during the week. Just wondering what sort of outlay is required for a rear tank conversion?
It'd be easier, lighter and cheaper to adapt the boat to take the covers fitted to most new placcy boats.
I took the rear tank out of 3316. The boat floated with back of the boat under water. Also made life difficult when you were on the c/board, ie. leaning backwards.
Andy please don't remove the tank as you know it really makes the boat very pretty and stiff.
sorry dont know why my recent post went under the heading confused - I am not.