Multihull

[Pinno]

Hi i was wondering why you could not get two yachts and join them to create a multihull, Would this be okay?

[boat fan]

Your`e kidding , right ?

[DaveJ]

Well technically he is right, just that the hulls are specially design hulls for the purpose they are choosen to do.

Pinno: you could get two yacht hulls and join them together, but the performance, behaviour, safety and many more elements of such boat would be really bad. You can gauge how bad by boat fan's reply.

[gonzo]

It depends of what you want as an end result. I can see a party barge for protected waters being built like that.

[sabahcat]

I had wondered how this would go 15-20 years back when I was sailing YW Diamonds and changed to multihulls


http://www.yachte.com.au/classes/ywdiamond.asp

YW Diamond Class Specifications
Overall Length 9.182 m.
Length at Waterline 7.3 m.
Beam 2.026 m.
Displacement 1075 kg.
Draft 1.3 m.
Mast Height 9.144 m.
Spinnaker Pole Length 3.048 m.
Boom Length 3.57 m.
Construction Marine Plywood, GRP or Aluminium.
Sail Area
Mainsail 14.3 sq.m.
Genoa 14.5 sq.m.
Spinnaker 42.0 sq.m. (approx.)
Jib (optional) 6.3 sq.m.
Racing Crew Three or Four

As they were a lightweight hull that performed very well, I had visions of joining the two hulls with a curved upward ply drum bulkhead for main beam and a box beam for the aft beam positioned fwd of the rudder.

Then cutting off the keel (which was 2 lamination's of 16mm ply with lead bulb in 2 halves) and putting in angled daggerboards on the outboard side of each hull.

Leaving the existing free standing rigs in place.

Wouldn't have been the fastest thing in the world, but 20 years ago 30 ft diamond with newish sails and bags of spares were selling for around $3000 aud, so it would have been an interesting and inexpensive experiment.