Auric CupDefender’s waters · 37th edition
18.4KT · 062°
LAYLINE BREACH · HEADER IMMINENT
Race bulletinSouth Bastion Roads

The Thirty-Seventh Defense

Elegance,under pressure.

One hundred and ten years of silverware etiquette. Ninety seconds to the gun. Fifty knots on two pieces of carbon no wider than a hand.

Enter race control
The foiling monohull Gilt Wraith A gold and navy racing yacht lifts above a line of water, its sails trimming with the wind. AC37 GILT WRAITH
BOAT SPEED49.7KTS
HEEL3.2°
HULL AC37-D01TRUE WIND 062°SEA STATE 0.7 M
RACE 04— 00:01:42 TO GUNPORT END FAVORED +3.8°— CURRENT SET 0.4 KT SOUTH

01 / Tactical water

The course is
never still.

Drag the gold layline handles. If your approach falls deeper than 58°, Race Control will register a header and the masthead will protest.

BASTION ROADS · COURSE CTWA 43° · VMG +18.2
Interactive Auric Cup course map Drag the gold handle around the windward mark to change the yacht's tactical layline. M1 · WINDWARDGATE 2PGATE 2S DRAG 43° 0500 METRES
PRESSURE1016.4HPA
LEFT SHIFT−4.2DEG
STARBOARD00:38LAY

02 / Anatomy of flight

One hull.
Two knives.

The AC/37 rule allows a monohull to forget the water. At 16 knots, the leeward T-foil carries 6.8 tonnes. At 42, a skin of vapour begins bargaining with the engineers.

Animated foil cross section showing water pressure and cavitation 3.40 M SPAN
CAVITATION ONSET48.6 KTS / −0.71 Cp
LOW FACE−0.58 CpVAPOUR MARGIN5.0 KTSTATUSATTACHED
01

Invisible hinge

Twenty-two hydraulic cells twist the flap by fractions of a degree. The helmsman feels it as quietness: no shudder, just altitude.

02

Golden margin

Above 49 knots, the low-pressure face sheds vapour. The gold band marks the six-second thermal limit before the foil must unload.

03

Carbon memory

After every sail, ultrasound maps 18,400 laminate cells. A change the width of a fingerprint grounds the boat.

03 / Eight hearts aboard

The human
power plant.

No passenger crosses the rail. Four cyclors feed the hydraulic bus; four sailors turn thought into trajectory. On the final reach, their average heart rate exceeds 176.

PosSailorFunctionLive pulseLoad
H01Mara VossPort helm1483.8 G
T02Elian RookFlight control1564.2 G
C03Sora KadeStarboard trim1736.1 G
C04Teo MarenPort trim1665.7 G
P05Niamh OrrHydraulic cell A18192%
P06Jules FenHydraulic cell B17689%
P07Ada SolHydraulic cell C18496%
P08Cass IverHydraulic cell D17287%
“The boat is most dangerous when she goes quiet. That means she has stopped arguing with the air.”Mara Voss · Defender helm

04 / The nationality clause

Born under
the same flag.

The Cup was not made for hired hands. Its disputed “two waters” clause requires every sailor to have lived beside the defender’s tide for twenty-four months.

In 1928, challenger Silent Province arrived with a helmsman born aboard a mail packet beyond any territorial sea. The regatta court sat for nine nights beneath the East Room chandelier. Its ruling—citizenship follows the mother, water follows no one—still binds every crew manifest.

ACRegistry verifiedOffice of Tidal Allegiance · Folio 37/8
DEED OF GIFT · ARTICLE IX
24MONTHS RESIDENCY
2HOME-WATER SEASONS
0DISPENSATIONS

05 / After the final gun

How to lift
the impossible.

There are seven prescribed movements. No glove may touch the silver. No anthem begins before the third turn toward the sea.

  1. 01

    The silence

    Engines stop. The winning crew waits on the eastern lawn until the last challenger has crossed.

  2. 02

    The salt

    The commodore wets the plinth with water gathered at Mark One before the first start.

  3. 03

    The three turns

    Bow to the challenger, the club, then the open water. Only then may eight hands rise.

  4. 04

    The first name

    The youngest sailor reads every defender since Aurelia Vane, never the winning yacht.

Plinth locked · awaiting crew

South Bastion Roads · 11 September

Meet us
at the gun.

08Days:14Hours:37Minutes
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