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  #1  
Old 11-20-2007, 07:44 AM
Brorsan Brorsan is offline
 
Join Date: Nov 2007
Rep: 10 Posts: 4
Location: Gothenburg/Sweden
Thoughts and ideas for my 40ft racer

Hi, I'm drawing on a 40 ft racer, and the plan is to start build it in september 2008. I want it to be light, narrow, 11.95 long, 2m deep, foredeck will be used as bowsprit, It will cary about 40-45 kvm sail upwind and a gennacker all the way to the top downwind. Barely no interior. Good performance upwind is more important than downwind. The picture shows the boat at 20 degree´s heeling and a deplacement of 1500kg. (about 1000kg in the keel)
I'm very thankful for thoughts and ideas. Thank you.

/Brorsan
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  #2  
Old 11-20-2007, 11:48 AM
water addict water addict is offline
Naval Architect
 
Join Date: Jun 2004
Rep: 73 Posts: 291
Location: maryland
Couple comments:
If you want upwind performance, balance the hullform a bit. Current form looks like lots of aft volume- good for offwind at higher speed, but not so great upwind.
Curved surfaces make poor footing at sea- your deckhouse is quite rounded, will be tough on your feet at heel in a seaway.
Your displacement figures are very optimistic, good luck- hope it works out.
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Old 11-20-2007, 12:41 PM
Brorsan Brorsan is offline
 
Join Date: Nov 2007
Rep: 10 Posts: 4
Location: Gothenburg/Sweden
Thank you. my idea with the little wider aft is to create some stabilety to the hull, but allso to cary the weight of the crew and a small engine on the deck at the aft. And ofcourse, the possibilety to surf and plan is never wrong (:

I must admit that i do aswell think that about 500kg for boat+ sails and everything else except keel, sounds optemistic... But people have told me that it weight about 5-6kg for each m2 plastic, dont know if it is true though. Total area of hull+deck is 66m2. But as said, there will hardly be any interior at all.
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