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Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257269
02/11/13 08:57 AM
02/11/13 08:57 AM
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Sebring, Florida.
Timbo Offline
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I think it has been mentioned here before, but I can't find it; what is that center structure for, that is in the middle of the boat, below the tramp?

Is it some type of structural support or an aerodynamic end plate for the wing?

Or is it where they put the mechanical systems/gearing, etc. for trimming the wing...or...??


Blade F16
#777
-- Have You Seen This? --
Re: AC72 Oracle Team USA Spaceship has landed [Re: Timbo] #257271
02/11/13 09:09 AM
02/11/13 09:09 AM

M
MN3
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M



Originally Posted by Timbo
what is that center structure for, that is in the middle of the boat, below the tramp?

beer cooler

Re: AC72 Oracle Team USA Spaceship has landed [Re: Timbo] #257274
02/11/13 09:15 AM
02/11/13 09:15 AM
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Portland, Maine
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ThunderMuffin Offline
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Originally Posted by Timbo
I think it has been mentioned here before, but I can't find it; what is that center structure for, that is in the middle of the boat, below the tramp?

Is it some type of structural support or an aerodynamic end plate for the wing?

Or is it where they put the mechanical systems/gearing, etc. for trimming the wing...or...??


I read somewhere that it contains hydraulic equipment and doubles as an extension of the wing although I wonder just how much it helps.

Re: AC72 Oracle Team USA Spaceship has landed [Re: ThunderMuffin] #257282
02/11/13 10:41 AM
02/11/13 10:41 AM
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Posts: 5,590
Naples, FL
waterbug_wpb Offline
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Originally Posted by Undecided
Originally Posted by Timbo
I think it has been mentioned here before, but I can't find it; what is that center structure for, that is in the middle of the boat, below the tramp?

Is it some type of structural support or an aerodynamic end plate for the wing?

Or is it where they put the mechanical systems/gearing, etc. for trimming the wing...or...??


I read somewhere that it contains hydraulic equipment and doubles as an extension of the wing although I wonder just how much it helps.


and the hookers


Jay

Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257447
02/13/13 09:15 PM
02/13/13 09:15 PM
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Northfield Mn
Karl_Brogger Offline
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So how the F are they controlling the attitude of this beasty?

[Linked Image]


Sometimes it looks like she's running bow up, others nose down. It certainly isn't crew weight doing that much. Angle of attack on the boards? or are they pumping water around to get things done?


I'm boatless.
Re: AC72 Oracle Team USA Spaceship has landed [Re: Karl_Brogger] #257450
02/13/13 09:33 PM
02/13/13 09:33 PM
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Posts: 12,310
South Carolina
Jake Offline
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Originally Posted by Karl_Brogger
So how the F are they controlling the attitude of this beasty?

[Linked Image]


Sometimes it looks like she's running bow up, others nose down. It certainly isn't crew weight doing that much. Angle of attack on the boards? or are they pumping water around to get things done?


I don't know about water ballast - but I know they can control the fore/aft angles of the daggerboard trunks. They're aren't allowed to have movable foils/flaps that articulate under the water.


Jake Kohl
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257531
02/15/13 09:56 PM
02/15/13 09:56 PM
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Well, clearly less racking then before. I'm wondering if this might be a good thing. Very exciting to watch.



Philip
USA #1006
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257532
02/15/13 10:50 PM
02/15/13 10:50 PM
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Seems like yesterday. It's been 3 years.



Philip
USA #1006
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257533
02/15/13 11:01 PM
02/15/13 11:01 PM
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[Linked Image]


Philip
USA #1006
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257535
02/15/13 11:07 PM
02/15/13 11:07 PM
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Philip
USA #1006
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257537
02/17/13 09:53 AM
02/17/13 09:53 AM
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Originally Posted by mummp

Watch at 1:41 in video. On a bear away, the platform begins to pitch and immediately the lee bow rises in attitude and the lee hull foils at a moderately low speed. Could this be the result of adjusting the angle of attack of the foil? Seems very responsive.


Philip
USA #1006
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257557
02/18/13 08:37 AM
02/18/13 08:37 AM
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Greenville SC
bacho Offline
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It's also appears to have accelerated very quickly as soon as that hull came up.

Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257670
02/21/13 07:44 AM
02/21/13 07:44 AM
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NZ's Sphincter Factor "10"

[Linked Image]

[Linked Image]


Philip
USA #1006
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257676
02/21/13 08:27 AM
02/21/13 08:27 AM
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Northfield Mn
Karl_Brogger Offline
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Can we hurry up and tweak done class rules and make this happen on a beach cat? Something tells me these guys have done their homework.


I'm boatless.
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257775
02/23/13 09:50 AM
02/23/13 09:50 AM
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Philip
USA #1006
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257779
02/23/13 10:43 AM
02/23/13 10:43 AM
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South Carolina
Jake Offline
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The B-team gets promoted so the A-team can keep working on big betty.


Jake Kohl
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257787
02/24/13 08:07 AM
02/24/13 08:07 AM
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Portland, Maine
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Originally Posted by mummp
NZ's Sphincter Factor "10"

[Linked Image]

[Linked Image]


Seems to me that they got plenty of rudder in the water.

Nothing to worry about :P

Re: AC72 Oracle Team USA Spaceship has landed [Re: Jake] #257788
02/24/13 08:40 AM
02/24/13 08:40 AM
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+31NL
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Originally Posted by Jake


The B-team gets promoted so the A-team can keep working on big betty.

The A-Team will not be allowed to sail the AC72 during the ACWS event though.

Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257798
02/24/13 07:03 PM
02/24/13 07:03 PM
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"he has a set of button that control the shape of the wing – the camber and twist. But the difference is that those buttons trigger the hydraulics and the hydraulics are powered by somebody grinding. Every time he presses a button it spends some of the hydraulic pressure and that has to be topped up by somebody grinding."

Bundy talks about who's doing what on the AC72

Interesting


Philip
USA #1006
Re: AC72 Oracle Team USA Spaceship has landed [Re: P.M.] #257830
02/26/13 11:20 AM
02/26/13 11:20 AM
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Looks like Artemis is heading back to the shed for some upgrades.
[Linked Image]


Philip
USA #1006
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