I have seiously considered this for my Tobago
35, she could do with a metre extension aft, and maybe a bit at the front as well.
After upgrading to the 18 hp engines, and adding a couple of batteries, she drags her transom.
I have hull number 1, and can see where they originally had the waterline, which is about 2 inches higher up at the stern. So someone didn't have their weight calculations right from the beginning.
When I add a small rib
to the davits
, the transoms are submerged by about 30 mms at the dock
The cost for the extension will be around 20 kUSD.
I saw a 32 ft. Maldives
that was extended a metre, and it looked good.
While I sit on the fence on the hull extension, I have been fiddling with other "turbo-charging" options.
1.) Added a bowsprit
and necessary reinforcements to fly a Code 0 and an Asymmetric
2.) An outleader kite sail
3.) A new, 1 m taller rotating wingmast with a big flat top mainsail
, and a new larger selftacking jib
. Composite rigging
. This is a work in progress, and will be delivered in 3-4 weeks.
The original rig limits the size of the jib
as there is a protrusion at the forward end of the mast
. Removing this will give me a slightly larger jib.
It will be interesting to see what increase in performance this will give. I think the hull extension will give me better value for money from a performance/$. Theoretically an extension of waterline length from 38 to 38 ft will give me 0.3 knots of "hullspeed), but if i can get a clean exit at the transom and bring down drag, it could easily be more.
I will document all this later on, for future reference.
My experiences with this and a previous boat are what led me to extending my new design. I started of at around 43-44 ft, now she is 49 but I haven't changed beam or anything else.
Waterline length is the key factor IMHO