Skip to main content

The Ame­ri­ca’s Cup is the oldest sports tro­phy still award­ed today. Hard­ly any other com­pe­ti­ti­on com­bi­nes so much high-tech with ana­chro­nisms. The venue, the race for­mat and not least the yachts chan­ge dia­me­tri­cal­ly from event to event.

Each event is pre­ce­ded by 2 – 4 years of a veri­ta­ble «arms race» (tech­no­lo­gy deve­lo­p­ment batt­le). Each crew has offi­ci­al tech­no­lo­gy spies in its ranks and the­re are even rules in the Cup for copy­ing ori­gi­nal new sai­ling innovations.

2024 will be the 37th Ame­ri­ca’s Cup. The rene­wed use of hydro­foil sai­ling yachts is par­ti­cu­lar­ly spe­cial. Simi­lar to a hydro­foil, foils can be trim­med hydrau­li­cal­ly, which lift the enti­re bow out of the water from a mini­mum speed and thus allow speeds of up to 80 km/​h. At the­se speeds, very high forces act on the 25-meter-long boat and the enorm­ous sails (the main sail mea­su­res approx. 145 squa­re meters).

The trim­ming of the sails and foils is not dri­ven elec­tro­ni­cal­ly, but by 4 so-cal­led «cyclors». Sta­tio­na­ry bicy­cles are instal­led on board, which are cou­pled to the hydrau­lic accu­mu­la­tor (a gas/​oil tank that can absorb/​store pres­su­re). The­re, the work of the cyclors is con­ver­ted into mecha­ni­cal-hydrau­lic lif­ting work. The fas­ter and grea­ter the move­ment of the sails and foils, the grea­ter the power out­put of the 4 pedals must be.

Track ath­le­tes and rowers are ide­al types for this posi­ti­on. They can pro­vi­de the neces­sa­ry power, the high lac­ta­te tole­rance that this ent­ails and the neces­sa­ry body weight. In order to pro­ve its­elf as a cyclor, Ath­le­tes should be able to pro­du­ce 1100 watts over 30 seconds, over 4 minu­tes it is still a strong 550 to 600 watts and over 20 minu­tes 450 watts – so we are tal­king about 5 – 12 W/​kg body weight here – tha­t’s the equi­va­lent of a good U23/­Pro-Con­ti rider crammed into a car­bon hull in some­ti­mes stor­my waters.

Crews have alre­a­dy spent seve­ral months in their own trai­ning bases pre­pa­ring for the actu­al com­pe­ti­ti­on in fall 24. In addi­ti­on to trai­ning on the water, the Cyclors› dai­ly trai­ning rou­ti­ne includes many hours in the weight room and on the Wattbike.

In addi­ti­on to a high calo­rie inta­ke, a lot of pro­te­in, crea­ti­ne and lac­ta­te-buf­fe­ring sub­s­tances are con­su­med. As in so many sports, the com­bi­na­ti­on of pio­nee­ring tech­no­lo­gy (boat buil­ding), mas­terful tac­tics and the expe­ri­ence of top sail­ors in deal­ing with the exter­nal con­di­ti­ons and astoun­ding phy­si­cal and men­tal per­for­mance is a fasci­na­ting thing that, when view­ed from the out­side, does not even begin to reve­al how many hours of sweat and brain­power are required.

Leave a Reply

Close Menu

Dani Hof­stet­ter –
Per­for­mance Nutrition
Mas­ter of Food Sci­ence ETH,
Nut­ri­tio­nist and Long distance tri­ath­lon world champion