Do you believe in miracles??? - Page 6 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > Out There > Racing
 Not a Member? 


Like Tree11Likes
Reply
 
LinkBack Thread Tools
  #51  
Old 09-29-2013
SchockT's Avatar
Senior Member
 
Join Date: May 2012
Location: North Vancouver, BC
Posts: 1,384
Thanks: 0
Thanked 23 Times in 22 Posts
Rep Power: 3
SchockT is on a distinguished road
Re: Do you believe in miracles???

Do I believe in Miracles? No I don't.

But what exactly did happen to turn Oracle's fortunes around seemingly overnight? Was it that the whole crew suddenly had an epiphany and figured out how to make the boat so stable on it's foils? I doubt it! More likely they had a bit of help. Exactly what that help was, and whether it was within the rules, we will probably never know.

This article is clipped from Sail-World.com:
Quote:
The following notes are circulating in Auckland media circles, as an explanation for Oracle Team USA's improved foiling performance, as time progressed in the 34th America's Cup.

The notes were dated September 23, 2013, but were received by Sail-World mid-morning September 26, after the regatta had finished. But the device was first highlighted by the Television NZ commentary team during their coverage of the vital Race 19, of the 34th America's Cup. Click here for the full race coverage and NZ commentary including comment on the Oracle Team USA foiling performance.

This afternoon, Tim Smythe, principal of Core Composite Builders, Oracle Team USA's Warkworth (NZ) based building facility, said that the team used the same set of foils through the regatta and that the 'special foil adjuster system, was there before the regatta started'.

Click here for the TV3 report and interview with Tim Symthe.

The matter was taken by Emirates Team NZ to the International Jury on September 3, and a Decision issued on September 6, just one day before the regatta started. It was rejected on the basis on being filed outside the allowable time, but added a rider, that had it been issued inside the time limit, but on the basis of what had been heard, the application would have been unlikely to have been upheld.

Emirates Team NZ's Ray Davies said 'their boat is rock steady up wind, that takes us a lot of effort, and we have been trying to it for a long, long time, and yet they master it in just a few days.

It is well recognised that Oracle was having serious foiling stability difficulties at the outset of the regatta and that their performance could not match that of ETNZ.

Half way through the series it was acknowledged that Oracle had fitted an automatic control to their hydrofoil trim, and that this modification was approved by the measurement authorities.

Since this modification Oracle's performance has almost unbelievably improved. This has been 'explained' by skipper Jimmy Spithill as being due to the superhuman efforts of the crew to improve their handling skills. However, in view of the intensive training Oracle were able to do, prior to the regatta, with their highly skilled team partner, it seems unlikely that only now have they discovered the 'magic bullet' they they clearly have. It is much more likely to be the result of the modifications, possibly enabled by their surprising decision to use their lay day card and the subsequent lucky postponements.

It must be remembered that this is the first time that this contest has been sailed by yachts 'flying ' on Hydrofoils and it is probable that new and different criteria should have been applied.

In the aeronautical world it has long been known that the stability of swept wing aircraft can rapidly be lost by uncontrolled yaw leading to a dangerous situation known as 'Dutch Roll'.

A device known as 'Little Herbie' was developed during the commissioning of the Boeing 747 Jumbo Jets over 40 years ago, to over come this tendency. Little Herbies, or 'Stability Augmentation Systems' (SAS) as these are now designated, are equipped with sensors such as Accelerometers and Gyros which can detect and instigate corrections to stability with a speed and accuracy which exceeds the ability of even experienced airline pilots. They are therefore now installed in virtually all swept-wing aircraft.

The 'legality' of this device has been justified and accepted on the basis that it does not actually 'drive' the trim of the foils.....this is still performed by the muscle power of the crew, via hydraulic linkages. That may be so, but the device, using its sensing and directives, has been described as 'automatic'. This implies that the trim of the foils is determined by what can only be described as 'superhuman' technology. If this technology has been used to overcome the foiling stability difficulties of Oracle it will have enabled the use of higher speed/lower drag foils which the crew would otherwise be unable to manage. This would give a significant speed advantage during foiling. This has been clearly in evidence since the modification. Improvement in stability and speed has been staggering.

The high speed/low drag foils do have a downside in light conditions where, due to their lesser lifting characteristic, foiling is difficult or impossible. This was also clearly seen in the abandoned Race 13 when ETNZ were only 4 minutes from the finish, with a lead of over 1000metres.

Oracle Team USA have not provided any official comment on the system they used.

While it would seem that the actuator device is legal, if it is attached directly to its own power supply, the wider question remains as to whether a boat should be raced with a computer, rather than a human, driving a primary control function.

The Racing Rules on the matter are very clear RRS42 Propulsion states: A yacht shall compete only by using the wind and water to increase, maintain or decrease her speed. Her crew may adjust the trim of the wing, sails, rudders, daggerboards and hulls, and perform other acts of seamanship.

The vital words are at the opening of the second sentence 'her crew' - meaning that an automated adjustment which works independently of crew intervention is illegal.

Then BMW Oracle Racing did have very sophisticated on-board systems in 2010 in the Deed of Gift Match, which amongst other things they were able to overlay a line image of the optimum wingsail shape against the actual image, enabling the crew to make the adjustment required to get the two shapes into alignment, and achieve the ultimate performance.

That is one step away from having the wingsail shape adjusted by a computer independent of the crew which under RRS42 is illegal. Even under the current America's Cup rules such a system is quite legal, and it is hard not to believe that such systems were not used again in the 2013 America's Cup. The key point being that there must be a crew intervention between the computer and the sail or other control named in RRS42.

Of course computers are not infallible, and any intelligent computer system requires a lot of tweaking and refinement to be operate consistently and at a refined level. It all takes time - and time is the most vital commodity in the America's Cup.

The time for application to the International Jury over such a matter, is long gone. The rules require that a competitor protests or lodges an application to the Jury as soon as they are aware of a measurement issue, not later or at the end of a regatta.


by Richard Gladwell
__________________
1979 Santana 30 Tall Rig
Hull#101
Reply With Quote Share with Facebook
  #52  
Old 09-29-2013
CBinRI's Avatar
Senior Member
 
Join Date: May 2004
Posts: 912
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 11
CBinRI is on a distinguished road
Re: Do you believe in miracles???

Quote:
Originally Posted by Fstbttms View Post
Yawn.

Your blue blazer, stuffy East Coast, light air, lead mine AC regattas are a thing of the past. Better get used to that.
Pretty douchey response. I guess you disrespectfully disagree.
Reply With Quote Share with Facebook
  #53  
Old 09-29-2013
Classic30's Avatar
Once known as Hartley18
 
Join Date: Aug 2007
Location: Melbourne, Australia
Posts: 4,435
Thanks: 25
Thanked 35 Times in 35 Posts
Rep Power: 8
Classic30 will become famous soon enough Classic30 will become famous soon enough
Re: Do you believe in miracles???

Quote:
Originally Posted by SchockT View Post
Do I believe in Miracles? No I don't.

But what exactly did happen to turn Oracle's fortunes around seemingly overnight? Was it that the whole crew suddenly had an epiphany and figured out how to make the boat so stable on it's foils? I doubt it! More likely they had a bit of help. Exactly what that help was, and whether it was within the rules, we will probably never know.
Well, the skipper and strategist (both Aussies, BTW) are both highly-regarded Olympic-class yachtsmen used to from-behind comebacks. eg. Tom Slingsby is the reigning world champion and olympic gold medalist in the Laser class and the best caller of wind-shifts I've ever heard anyone speak of.

..but maybe it was kicking the Americans off the boat?
__________________
-
"Honestly, I don't know why seamen persist in getting wrecked in some of the outlandish places they do, when they can do it in a nice place like Fiji." -- John Caldwell, "Desperate Voyage"
Reply With Quote Share with Facebook
  #54  
Old 09-30-2013
SchockT's Avatar
Senior Member
 
Join Date: May 2012
Location: North Vancouver, BC
Posts: 1,384
Thanks: 0
Thanked 23 Times in 22 Posts
Rep Power: 3
SchockT is on a distinguished road
Re: Do you believe in miracles???

We all know both boats were loaded with elite sailors. That doesn't account for the very sudden change in Oracle's performance. The boat went from unsteady on it's foils to rock solid foiling on every point of sail almost over night. That has nothing to do with the afterguard, and I doubt it has to do with some extra practice hours, and a "superhuman effort to improve boathandling" as Oracle would have us believe.

Maybe it was an 11th hour "eureka moment" by the engineers coming up with the magic formula for stable flight. Maybe it is all perfectly innocent and fully within the rules. Unfortunately Team Oracle has a history of blatant cheating, combined with the fact that they have refused to comment about their foil control system at all, could lead one to believe that they have something to hide.
__________________
1979 Santana 30 Tall Rig
Hull#101
Reply With Quote Share with Facebook
  #55  
Old 09-30-2013
downeast450's Avatar
Tundra Down
 
Join Date: Jan 2008
Location: Seal Harbor, Maine
Posts: 1,222
Thanks: 25
Thanked 14 Times in 14 Posts
Rep Power: 7
downeast450 is on a distinguished road
Re: Do you believe in miracles???

Quote:
Originally Posted by SchockT View Post
Do I believe in Miracles? No I don't.

But what exactly did happen to turn Oracle's fortunes around seemingly overnight? Was it that the whole crew suddenly had an epiphany and figured out how to make the boat so stable on it's foils? I doubt it! More likely they had a bit of help. Exactly what that help was, and whether it was within the rules, we will probably never know.

This article is clipped from Sail-World.com:
Sounds reasonable. Hoping that cheating isn't the new "edge" in this sport. Why should it be any different than all the others!

Down
__________________
Islander-28, Marshall Sandpiper
Reply With Quote Share with Facebook
  #56  
Old 09-30-2013
Senior Member
 
Join Date: Feb 2010
Location: Narragansett Bay
Posts: 8,693
Thanks: 10
Thanked 113 Times in 107 Posts
Rep Power: 6
Minnewaska will become famous soon enough Minnewaska will become famous soon enough
Re: Do you believe in miracles???

Does anybody else find it odd that we still have grinders hammering away, while they are simply loading an hydraulic system and a computer is necessary to keep the boat sailing?

Advances are great, but this seems we are beginning to boarder on the crew being unnecessary. Did you see all the electronic devices on their forearms and even the tacticians had some flip down tablet on their torso. I'm not opposed, it just seems less like a sailing race and more like a computer race.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Jeanneau 54DS

In the harsh marine environment, something is always in need of repair. Margaritas fix everything.
Reply With Quote Share with Facebook
  #57  
Old 09-30-2013
weinie's Avatar
Senior Member
 
Join Date: Jun 2008
Posts: 322
Thanks: 4
Thanked 10 Times in 8 Posts
Rep Power: 7
weinie is on a distinguished road
Re: Do you believe in miracles???

Quote:
Originally Posted by Minnewaska View Post
Does anybody else find it odd that we still have grinders hammering away, while they are simply loading an hydraulic system and a computer is necessary to keep the boat sailing?

Advances are great, but this seems we are beginning to boarder on the crew being unnecessary. Did you see all the electronic devices on their forearms and even the tacticians had some flip down tablet on their torso. I'm not opposed, it just seems less like a sailing race and more like a computer race.
I use an autopilot when I sail single handed.
I also use electronics to measure depth and speed.
Oh, and a GPS instead of charts.
I'd like to think I'm still sailing.

Last edited by weinie; 09-30-2013 at 07:43 AM.
Reply With Quote Share with Facebook
  #58  
Old 09-30-2013
Senior Member
 
Join Date: Feb 2010
Location: Narragansett Bay
Posts: 8,693
Thanks: 10
Thanked 113 Times in 107 Posts
Rep Power: 6
Minnewaska will become famous soon enough Minnewaska will become famous soon enough
Re: Do you believe in miracles???

Quote:
Originally Posted by weinie View Post
I use an autopilot when I sail single handed.
I also use electronics to measure depth and speed.
Oh, and a GPS instead of charts.
I'd like to think I'm still sailing.
You most certainly are sailing. However, are you racing?
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Jeanneau 54DS

In the harsh marine environment, something is always in need of repair. Margaritas fix everything.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



All times are GMT -4. The time now is 05:01 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.