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Re: AC72 Oracle Team USA Spaceship has landed [Re: Mike Hill] #251847
08/31/12 06:12 PM
08/31/12 06:12 PM
Joined: Sep 2002
Posts: 3,222
Roanoke Island ,N.C.
Team_Cat_Fever Offline
Carpal Tunnel
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Originally Posted by Mike Hill
Why the center hull? Seems like extra weight for no gain in performance? I don't get it.

Structure support is my guess.


"I said, now, I said ,pay attention boy!"

The cure for anything is salt water - sweat, tears, or the sea
Isak Dinesen
If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most.
E. B. White
-- Have You Seen This? --
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #251854
08/31/12 10:37 PM
08/31/12 10:37 PM
Joined: Aug 2007
Posts: 3,969
B
brucat Offline
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I think I saw an interview where Larry discussed 17 around the time of the DoG event. Wish I could remember the exact reason, but he's had a bunch of boats with that number, and apparently has won some major events running that number.

Mike

Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #251857
09/01/12 05:07 AM
09/01/12 05:07 AM
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Tony_F18 Offline
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They broke a daggerboard on their first sail, the load on the tip of those L foils has to be immense.

Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #251858
09/01/12 06:26 AM
09/01/12 06:26 AM
Joined: Dec 2006
Posts: 2,490
On the Water
P.M. Offline OP
Pooh-Bah
P.M.  Offline OP
Pooh-Bah

Joined: Dec 2006
Posts: 2,490
On the Water
video first sail



Philip
USA #1006
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #251859
09/01/12 09:08 AM
09/01/12 09:08 AM
Joined: Nov 2003
Posts: 749
Santa Cruz, CA
SurfCityRacing Offline
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I'll post 'em here since I don't post, let alone even visit that internet cesspool...

[Linked Image]


At one point as I was watching 17 sail, I notices that the T Foil on the rudder was lifting more that the board. The boat was sailing bow down. I was about .25 miles off, so it was difficult to see exactly what was going on, but I assume that this is when the board broke.

Having seen the tips of F18 boards sink after a breakage, I assumed that the foil probably sunk. It was reported to me later in the day that one of the chase boats picked it up; it was floating.

Not wanting to disrespect the team, I called their media rep and asked permission to post the pics. He granted permission, and was appreciative of my respect.

I've got a few more. I'll post sometime.

[Linked Image]

Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #251860
09/01/12 09:17 AM
09/01/12 09:17 AM
Joined: Dec 2006
Posts: 2,490
On the Water
P.M. Offline OP
Pooh-Bah
P.M.  Offline OP
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On the Water
Thanks Jeremy


Philip
USA #1006
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #251863
09/01/12 06:01 PM
09/01/12 06:01 PM
Joined: Aug 2011
Posts: 774
Greenville SC
bacho Offline
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Great pics, do we know what that box at the base of the wing is?

Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #251864
09/01/12 08:29 PM
09/01/12 08:29 PM
Joined: Sep 2002
Posts: 3,222
Roanoke Island ,N.C.
Team_Cat_Fever Offline
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Counter balance for wing installation. That and the struts come off to sail.


"I said, now, I said ,pay attention boy!"

The cure for anything is salt water - sweat, tears, or the sea
Isak Dinesen
If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most.
E. B. White
Re: AC72 Oracle Team USA Spaceship has landed [Re: Team_Cat_Fever] #251870
09/02/12 10:24 AM
09/02/12 10:24 AM
Joined: Nov 2003
Posts: 749
Santa Cruz, CA
SurfCityRacing Offline
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Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #251877
09/02/12 07:52 PM
09/02/12 07:52 PM
Joined: Apr 2012
Posts: 18
Sarasota Florida
Angelo190471 Offline
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Angelo190471  Offline
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Sarasota Florida
the tiller look cool. so far i think this is the best looking 72. also are both the oracle boats going to be the same?

Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #251878
09/02/12 09:13 PM
09/02/12 09:13 PM
Joined: Jan 2005
Posts: 6,046
Sebring, Florida.
Timbo Offline
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Those bows look very skinny/low volume compared to the rest of the boat/rig. I wonder if that's why they added the T foils to the rudders. to keep it from going bow-down, or....are they going to try to foil it?

If they can keep the L boards from snapping, I could see where they might be able to foil, but I don't see any means of adjusting the ride height if they do get it up in the air, and they were obviously sailing it on one hull only, so I don't think the intent is to foil it, unless they are going to work their way up to that, after they get used to sailing it.


Blade F16
#777
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #251895
09/03/12 08:45 AM
09/03/12 08:45 AM
Joined: Apr 2012
Posts: 18
Sarasota Florida
Angelo190471 Offline
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i cant remember were i read it but the t foils are there is its less likely to pichpole

Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #251896
09/03/12 10:41 AM
09/03/12 10:41 AM
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Tony_F18 Offline
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Cant wait to see these cats race:
[Linked Image]

Re: AC72 Oracle Team USA Spaceship has landed [Re: Angelo190471] #251899
09/03/12 01:00 PM
09/03/12 01:00 PM
Joined: Oct 2011
Posts: 217
Palm Harbor, FL
daniel_t Offline
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Palm Harbor, FL
Originally Posted by optikid
the tiller look cool. so far i think this is the best looking 72. also are both the oracle boats going to be the same?


I noticed that too. A 72 foot boat with a tiller... I wonder if they are going to keep with that or if it was just something for testing. I noticed that New Zealand's boat was wheels.


Daniel T.
Taipan F16 - USA 213
Re: AC72 Oracle Team USA Spaceship has landed [Re: daniel_t] #251900
09/03/12 01:55 PM
09/03/12 01:55 PM
Joined: Nov 2003
Posts: 749
Santa Cruz, CA
SurfCityRacing Offline
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Close up of the team installing the tiller arms.

[Linked Image]

Re: AC72 Oracle Team USA Spaceship has landed [Re: Timbo] #251910
09/04/12 05:55 AM
09/04/12 05:55 AM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
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Originally Posted by Timbo
Those bows look very skinny/low volume compared to the rest of the boat/rig. I wonder if that's why they added the T foils to the rudders. to keep it from going bow-down, or....are they going to try to foil it?

If they can keep the L boards from snapping, I could see where they might be able to foil, but I don't see any means of adjusting the ride height if they do get it up in the air, and they were obviously sailing it on one hull only, so I don't think the intent is to foil it, unless they are going to work their way up to that, after they get used to sailing it.


The rules prohibit any underwater adjustment of the foils (flaps, etc.)...but they do have the ability to hydraulically tilt the daggerboards fore and aft quite a bit. The hydraulic power comes from the manual winching stations.


Jake Kohl
Re: AC72 Oracle Team USA Spaceship has landed [Re: daniel_t] #251911
09/04/12 05:56 AM
09/04/12 05:56 AM
Joined: Jun 2001
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South Carolina
Jake Offline
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Originally Posted by daniel_t
Originally Posted by optikid
the tiller look cool. so far i think this is the best looking 72. also are both the oracle boats going to be the same?


I noticed that too. A 72 foot boat with a tiller... I wonder if they are going to keep with that or if it was just something for testing. I noticed that New Zealand's boat was wheels.


It's a strange tiller too - they can steer the boat while standing up by swinging the rod/bar from side to side. I hope he has something else to hang on to...I have visions of those capsizes where you slide down the trampoline with the tiller in your hand...which makes the rudders turn more into the flip.


Jake Kohl
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #251912
09/04/12 06:07 AM
09/04/12 06:07 AM
Joined: Jan 2005
Posts: 6,046
Sebring, Florida.
Timbo Offline
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Yeah, if they are going 40 knots, I HOPE the driver has a seatbelt! Otherwise it's going to get pretty sporty every time they stuff a bow! I wonder if they'll have a single driving station in the center, with a seat and belt, so the skipper doesn't have to run the full width of the boat with every tack/gybe.


Blade F16
#777
Re: AC72 Oracle Team USA Spaceship has landed [Re: Jake] #251918
09/04/12 06:47 AM
09/04/12 06:47 AM
Joined: Sep 2004
Posts: 2,584
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Tony_F18 Offline
Carpal Tunnel
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Originally Posted by Jake

It's a strange tiller too - they can steer the boat while standing up by swinging the rod/bar from side to side. I hope he has something else to hang on to...I have visions of those capsizes where you slide down the trampoline with the tiller in your hand...which makes the rudders turn more into the flip.

The exact same system has been used on Dutch merchant ships since the 1600s.
There are extensions going to each side so he can steer from both hulls though, no need to stand on the center platform.

The steering action is the exact reverse of a normal tiller though, I wonder if they changed that somehow.

Re: AC72 Oracle Team USA Spaceship has landed [Re: Timbo] #251931
09/04/12 08:00 AM
09/04/12 08:00 AM
Joined: Sep 2002
Posts: 3,222
Roanoke Island ,N.C.
Team_Cat_Fever Offline
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Originally Posted by Timbo
Yeah, if they are going 40 knots, I HOPE the driver has a seatbelt! Otherwise it's going to get pretty sporty every time they stuff a bow! I wonder if they'll have a single driving station in the center, with a seat and belt, so the skipper doesn't have to run the full width of the boat with every tack/gybe.

Don't count on it. They're going to optimize every ounce of righting moment.


"I said, now, I said ,pay attention boy!"

The cure for anything is salt water - sweat, tears, or the sea
Isak Dinesen
If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most.
E. B. White
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