2013 mini transat

[torpenboat]

Coming soon
http://www.dailymotion.com/video/x15q396_bertrand-delesne-sur-le-proto-754-teamwork_sport

and more here


and here

http://www.dailymotion.com/hub/xyqt#video=x15oujx

 

[STYacht.com]

Thanks for posting the pics. Is that the prologue (nr 1)? ST went down with our latest client (new proto for 2015) and did some deep recon. We attending a few of the meeting discussing (in French) the next moves in measurement and class rules.

The album(s) of our time there can be found on the ST Facebook page. https://www.facebook.com/media/set/?set=a.10151992985230815&type=1

A few previews:

Ugly Americans

Race Village

A big shout out to Jeremy Palmer (right) who helped us understand both language and subtleties in rig layouts.

Locating the keel on 747 (even 2 years later one of the cleanest, best prepared boats)

 

[STYacht.com]

I would be remiss in not mentioning that our series design, hull 713 is also going across the Atlantic on a different course and mission.

https://twitter.com/Tropic4Cancer

https://www.facebook.com/Tropic4Cancer

We wish Richard the best of luck.

Meanwhile in California, 714 is undergoing an extensive refit and upgrade. 712 is sailing happily in Netherlands.

 

[Atmo]

Thanks for posting the pics. Is that the prologue (nr 1)? ST went down with our latest client (new proto for 2015) and did some deep recon. We attending a few of the meeting discussing (in French) the next moves in measurement and class rules.

The album(s) of our time there can be found on the ST Facebook page. https://www.facebook.com/media/set/?set=a.10151992985230815&type=1

A few previews:

Ugly Americans

Race Village

A big shout out to Jeremy Palmer (right) who helped us understand both language and subtleties in rig layouts.

Locating the keel on 747 (even 2 years later one of the cleanest, best prepared boats)

Ah, the karate-chop method of yacht design.

 

[Atmo]

Don't let my stoopid comment be the end of this thread, please, please, please post more pictures from Duarnenez.

 

[BalticBandit]

I'm going to head out there next weekend. So I'll post some next week (we were going to drive out this weekend, but got news that it was going to be postponed so we postponed)

 

[french do it better]

thanks Doug

now let's go and make the best mini rig of the universe

 

[STYacht.com]

Snippets of data from YW and SW

http://www.yachtingworld.com/blogs/elaine-bunting/535453/mini-transat-energy-and-innovation#BRx1qlZYsG44YzGl.01

http://www.sailingworld.com/racing/jeff-macfarlanes-mini-dreams

Touches slightly on the third rail of minidom - what does your boat weigh?

 

[BalticBandit]

Next possible Start Oppty is sunday

 

[STYacht.com]

OK FDIB,

let's begin with what we saw in Douarnenez. The only "new" proto this year is 850:

two curved spreader, DSK 90 rope rigging?, cathedral, moderate ~10 deg sweep, small topmast above hounds, no extra backstay for gybing, moderate outboard runner position ~ 90cm

Compare that with say 800:

single curved spreader, basically masthead, cathedral +extra D2 (afterthought?), also swept maybe a bit less, no extra rigging for gybing?, same rudder position outboard

 

[STYacht.com]

Next we have 754, Manuards:

totally inline with 1 curved spreader, cathedral + extra D2 (afterthought!), well and truly masthead, with extra rudder for gybes, PBO rigging, and interesting mast base (though not sliding)

Compare this to the 787, also Manuard:

2 totally inline, straight spreaders, I think PBO, not cathedral, no extra Ds, pretty sure also with gybing runner system, looks like a smaller distance of deflection at masthead, and a mast base lowered to exactly chainplate height.

So, FDIB, if you can pick and choose from the various ideas, what do you think? We pretty much agreed the 787 as one of the best rigs, but the single spreader layout, curved, and swept all allow for a bigger solent.

 

[french do it better]

I would do a mix of 787 and 754 and clean up on the aero drag:

- single inline spreader (curved for that all important extra 0.01m2 of solent area)

- slighty fractional to induce bend with the topmast backstay

- reduce number of diagonals and rely a bit more on sideways tube stiffness

- go for continuous carbon rigging

- invent a clever backstay system to make the mast gybe proof

I can't claim yet that this would be better than a conventional 2 spreader rig but I'm working on it.

 

[STYacht.com]

I would do a mix of 787 and 754 and clean up on the aero drag:

- single inline spreader (curved for that all important extra 0.01m2 of solent area)

- slighty fractional to induce bend with the topmast backstay

- reduce number of diagonals and rely a bit more on sideways tube stiffness

- go for continuous carbon rigging

- invent a clever backstay system to make the mast gybe proof

I can't claim yet that this would be better than a conventional 2 spreader rig but I'm working on it.

I would think there is an argument for just two strand the first element, so old school continuous. Or are you thinking "branching"?

Carbon is great, but it is going to cost dearly, I reckon.

I would add that the mast foot like 787 right down at chainplates is a key benefit to rig rake without any change in tension or stability.

The curves spreader gets more area than that, as it changes the angle of the leech, not just its fore-aft position.

I kind of liked your deflected runner idea. Why not if we are deflecting headstay and backstay up on the mast!?

Keep thinking!

 

[BalticBandit]

At the risk of sounding stupid... what do you mean by "cathedral"?

 

[STYacht.com]

Ok, it is a bit of a misuse of the word. A cathedral rig is one that has 2 top elements, one going to support the hounds laterally (headstay location) and one going further up (usally masthead) to support say a code 0 laterally.

In this case I mean that there are two such top elements. But in a mini with a deflected headstay arrangement, the location of the hounds is actually the higher point.

Make sense?

EDIT: FDIB can you confirm? Now that I think about it, I remember that cathedral rigs sometimes are also ones with a spreader at the hounds height (not a jumper) and therefore providing masthead support, though it is not "2 top elements". What is the proper definition?

 

[STYacht.com]

I would do a mix of 787 and 754 and clean up on the aero drag:

- single inline spreader (curved for that all important extra 0.01m2 of solent area)

- slighty fractional to induce bend with the topmast backstay

- reduce number of diagonals and rely a bit more on sideways tube stiffness

- go for continuous carbon rigging

- invent a clever backstay system to make the mast gybe proof

I can't claim yet that this would be better than a conventional 2 spreader rig but I'm working on it.

It occurs to me that I did not note the fact is 787 has the D1 outboard, really cutting into the useful solent size. The single spreader setup makes more sense to me IF one can keep the D1 inboard.

When you look at 754 the D1 is inboard.

 

[french do it better]

yeah cathedral for me is as you put it: one extra D up to the masthead, then if the boat has narrow chainplates, an extra set of spreaders is required at the hounds to keep a sufficient upper D angle to the mast.

on wide chainplate boats (mini IMOCA etc.) the spreader below the hounds is long enough not to require an extra set at the hounds.

 

[french do it better]

and yes, i would definitely go as much inboard as possible with the D1

 

[BalticBandit]

thanks.. next dumb question. What do you mean by "deflected headstay"... do you mean the headstay exiting the mast from the side rather than inline in front? What benefit would 3cm-6cm at the masthead have?

BTW I'm asking to educate myself. i have a goal of doing the 2017 run (would love to aim for 2015 but the financing isn't realistic)