I have a 45' canoe ended steel trawler
with a saloon
roof mounted mizzen mast
(a steadying sail -for stability). It is similar in design and looks to a circa 1980 Nordhavn 46. But, as the boat was originally designed as a sail boat, it has a long 5 ton keel
of 1.9metres (about 6 feet).
I want to add a mast
, and am intending to mount a 35-40 foot wooden mast just forward of my wheelhouse, about 15' back from the bow. With a gaff rig to keep the aspect low, and bowsprit
plus two head sails
, I should be able to get some decent forward propulsion
on sail alone in anything above a F3.
I have added 6mm steel
plates to the deck
(inside and out) to spread the load, and have a 2 metre steel compression
rod sandwiched between 10mm steel plates, which are bolted and welded to the deck
and steel section supports attached to the hull
. This should suffice in taking the load of the new mast.
I know where the center of lateral resistance (CLS) is for the hull
, and intend to ask a rigger/sailmaker to design and make the sails
so that the center of effort of the sales is 15% forward of the CLS.
The end result should be a gaff rigged trawler
(with a mizzen) which can sail reasonably well on a beam reach, or off the wind
...or at least that is the intention.
Can anyone comment re the theory, or suitability of the gaff rig, positioning of the main mast, size, material, bowsprit
and headsail ideas before I make a big mistake?!!
Many thanks to you all,