open 8.5 tri

[lancemansell]

Originally Posted by dantnz

Good on yer for giving it a go Lance, look forward to seeing how the design evolves. I hope you ignore some of the comments on here and keep us (ie amateurs like me!) up to date with the design values you come to and the reasoning behind them.

I noticed you plan to build this on the cheap - does that mean you are going to design it to be cheap to build or just utilise spare gear and materials you come by in your trade?

I'm assuming you are going tri so its better for cruising? I wondor if a tri design can be built in ply and still be stiff enough to be competitive - like an updated b28, or perhaps an (updated) tri version of the GBE.

hey dantnz

thanks for taking interest in my design/ build i will be updating my blogg regularly though out the process.
i will utilise the material i can get cheap or for free but looks like it will be nomex/foam ,carbon. i know that this inst cheap material but i have found a boat builder that has closed down and is selling materials cheap.

a lot of people down here have built new 8.5m trimarans and cats in tortured ply and they are some of the fastest boats. but i have come across this cheap carbon and its over kill having 400g carbon on plywood so im going with lighter foam core to make it stiffer.

[lancemansell]

Originally Posted by kiwi_bob

Hi Lance - looks good - some questions:
what materials are you planning to build from Ply/foam/Glass/carbon etc?
What sort of float volume are you planning?
Central centerboard or boards on the floats?
float rudders or central?

Cheers

Dean

hi dean
i have 400g CDB carbon maybe nomex core top sides foam decks and hulls.
float volume will be over 200% but i don't want to make them to big, i will update this on my blogg when im happy with the floats.
will have a central centerboard with float rudders.

cheers

[Silver Raven]

Originally Posted by lancemansell

why is everyone so negative on this forum?
all i did was ask a question and i get replies that criticize me and put me down

james
there is nothing up with me!
i know that New Zealand has the best 8.5 builders and designers and some of the best yacht designers (Bruce Farr), builders (core, COOKSONS) in the world . i myself am a boat builder currently building team New Zealand's and Prada's AC72s so i have the contacts but everyone is busy down here in NZ (including me) building oracles ,Prada's and ETNZ's AC72's so i don't want to disturb anyone by asking basic questions about LCB so i came onto the site.

if you dont have any information or ideas that will help me, please keep them to your self thank you

thanks Sam for your information.

lance

Gooday Lance. I figured that with all you experience & the chaps - over there - you'd be much better asking in your own - back-yard. It might be possible that if you had combined the first 2 posts - with all that extra info - people possibly would have understood where you were coming from, but that's you call. That's not negative at all. You've got Borderling, Boo Boo, Samin, Gary Baigent, the 2 Tims & a dozen other - really smart sailors - right in your area - so why not ask them - 2 things about that - 1/ the worst they can say is no - they wont help you - & I don't believe that for 1 moment - 2/ If you ask a very busy person - he'll find time to help you. Bet on that.

TimW - 'timberwolf' might just be a great place to discuss c/b's either in the main hull or in the 'float' hulls & whether 'C' or 'S' foils - angled in & rocking forward & if he thought a foil on the rudder(s) - might be worth the go.

What about 'canting' mast - I think you might learn a bit from 'Borderline' casue that sure seems to have a lot going for it & doesn't cost to much money - from what I can understand.

If you start - all the 'planning' from before you start anything else - you'll get all the 'fabulous' refinements linked-in at the very beginning & have a state of the art boat - not all that time - money & effort & be well & truely - off-the-pace. Your call of course. Great success to you - dedicated research will win in the long run - I suspect, but then I've only built a few over the last couple of years. Ciao, james

Thje 'story' goes - when Tim had - a guy - out on 'Timberwolf' fore some advice - the bloke said - 'to heavy' plus a few other things. so why not start with the 'engine-room' then put the hulls underneath the 'power-house. A 'canting' light weight 'wing-mast' - some 'S' foils - like on NZ (AC72) - a 'T' foil on the rudder blades & infusion molded & heat-cured - less weight - more power - more fun. Takes a bit longer to build but for every minute on the water you'll have 20 times more fun - looking back at the others trying to catch you.

If you don't think I've got any knowledge to off - just don't bother answering - I'll try really hard to learn how to cope with the rejection. Ciao, james

[lancemansell]

Originally Posted by Silver Raven

Gooday Lance. I figured that with all you experience & the chaps - over there - you'd be much better asking in your own - back-yard. It might be possible that if you had combined the first 2 posts - with all that extra info - people possibly would have understood where you were coming from, but that's you call. That's not negative at all. You've got Borderling, Boo Boo, Samin, Gary Baigent, the 2 Tims & a dozen other - really smart sailors - right in your area - so why not ask them - 2 things about that - 1/ the worst they can say is no - they wont help you - & I don't believe that for 1 moment - 2/ If you ask a very busy person - he'll find time to help you. Bet on that.

TimW - 'timberwolf' might just be a great place to discuss c/b's either in the main hull or in the 'float' hulls & whether 'C' or 'S' foils - angled in & rocking forward & if he thought a foil on the rudder(s) - might be worth the go.

What about 'canting' mast - I think you might learn a bit from 'Borderline' casue that sure seems to have a lot going for it & doesn't cost to much money - from what I can understand.

If you start - all the 'planning' from before you start anything else - you'll get all the 'fabulous' refinements linked-in at the very beginning & have a state of the art boat - not all that time - money & effort & be well & truely - off-the-pace. Your call of course. Great success to you - dedicated research will win in the long run - I suspect, but then I've only built a few over the last couple of years. Ciao, james

Thje 'story' goes - when Tim had - a guy - out on 'Timberwolf' fore some advice - the bloke said - 'to heavy' plus a few other things. so why not start with the 'engine-room' then put the hulls underneath the 'power-house. A 'canting' light weight 'wing-mast' - some 'S' foils - like on NZ (AC72) - a 'T' foil on the rudder blades & infusion molded & heat-cured - less weight - more power - more fun. Takes a bit longer to build but for every minute on the water you'll have 20 times more fun - looking back at the others trying to catch you.

If you don't think I've got any knowledge to off - just don't bother answering - I'll try really hard to learn how to cope with the rejection. Ciao, james

thanks for expressing your ideas.

cheers lance

[Steve W]

Dont forget there is a minimum weight of 900 kg.

Steve.

[Stumble]

The thing about minimum weight is you can always come back later and epoxy some lead into the hull but its really hard to remove it once its there. So better to make everything as light as possible, and come back and bring it up to weight where the weight hurts you the least.

[SpiritWolf15x]

This thread is relevant to my interests.

Any update on progress?