Recon diary

Sailbydate

Super Anarchist
11,854
3,427
Kohimarama
Why? They are working on sails, controls, cyclors, crew training, procedures, etc. Pensacola Bay is like one big test tank, with optimum conditions. They can just slip outside the harbor at anytime to play with some swell.
The longer they put it off, the harder it will be. Might as well face that demon sooner rather than later. It's not like they'll have an option in, Barcelona.
 

Mozzy Sails

Super Anarchist
1,276
1,154
United Kingdom
Magic have almost caught ETNZ in terms of time on the water, but before their breakage ETNZ had amassed 674 (88% foiling) manoeuvres to Magic's 279 (60% foiling). Part of that difference will be the power demands of a crewed AC75 versus battery powered AC40 on auto-ride height.

Despite impressive time of the water Alinghi still struggled with low manoeuvre rates in November, but did improve from campaign average. They stopped sailing mid-month, presumably for upgrades (place your bets: self tacking jib? cyclors?).
1669971099364.png
 

enigmatically2

Super Anarchist
3,964
2,039
Earth
Given that all the competitors last time were pretty fluent in foiling tacks and gybes in medium airs by the end, I don't think there is much to be gained there. So I don't think the stats for such manoeuvres are especially relevant now. IMO where the important gains will be made is more likely to be
1) Top speeds- i.e. raising cavitation speeds, or minimising impact of it
2) Low wind take-offs and manoeuvres
3) Stability in waves
4) Fractional differences in medium conditions (e.g. aero in boom)

And none of these boats are going to race for the AC itself. So at the moment its all about what the boats learn for that design. All the foiling manoeuvres in the world in a bog standard AC40 (especially with auto-pilot on) won't teach you much about any of those
 

Stingray~

Super Anarchist
12,424
3,395
PNW
IMHO
The AC will be won by the boat that can climb onto foils in the lowest wind speed?
Let's pray that it does NOT happen that way!

Too many races in Auckland were ridiculous, one boat foiling and the other not. Races between foilers require that they both be foiling. ETNZ was WRONG to not raise the lower wind limits as requested by Challengers.
 

buckdouger

Anarchist
809
342
Can anyone remind me how to find the rule interpretations on the notice board? I found a bunch of stuff about logos on team t-shirts but couldn't find the interesting stuff.

I offer this document on FCS improvements in exchange.
 

Attachments

  • AC37 CORD Competitors Notice No 15.pdf
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buckdouger

Anarchist
809
342
Can anyone remind me how to find the rule interpretations on the notice board? I found a bunch of stuff about logos on team t-shirts but couldn't find the interesting stuff.

I offer this document on FCS improvements in exchange.
For those who are not inclined to read it, a summary is that it innumerates a few changes to the FCS system: possible specification of an anti-titanium contamination coating, shortened stroke in actuators, different seals, new wire harness, same batteries..
 

Sailbydate

Super Anarchist
11,854
3,427
Kohimarama
Let's pray that it does NOT happen that way!

Too many races in Auckland were ridiculous, one boat foiling and the other not. Races between foilers require that they both be foiling. ETNZ was WRONG to not raise the lower wind limits as requested by Challengers.
On the other hand, they were dead right, believing they had an advantage in lighter winds. The Cup being still on the shelf seems proof enough, no?
 

accnick

Super Anarchist
3,557
2,559
Can anyone remind me how to find the rule interpretations on the notice board? I found a bunch of stuff about logos on team t-shirts but couldn't find the interesting stuff.

I offer this document on FCS improvements in exchange.
Here's the link. The menu across the bottom takes you to the history of the individual enquiries.
 

JALhazmat

Super Anarchist
4,444
1,692
Southampton
Indeed dealing with swell height with minimum loss of vmg will also be a big factor - interesting.
when interesting becomes pot luck it ceases to be interesting .

can Only hope the longer foil arms give the 75s enough height, the current ones certainly don’t. Boats constantly splashing down will make a mockery of the teams, talent and entire spectacle.
 

Kiwing

Super Anarchist
3,539
599
Bay of Islands
It will be interesting all the time,

Reading the waves, keeping the foil rudder combination out of the troughs, different but similar to surfing waves. It will be very interesting to see the strategies?
 




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