35th Americas Cup: Foiling Multihulls!

35th America's Cup on Foils---UK

Team UK(BAR) capsize: http://www.foilingweek.com/2015/12/landrover-bar-capsize-new-test-boat-in-solent/

 

35th America's Cup on Foils---Oracle

Oracle on foil design: https://www.youtube.com/watch?v=PwHul9g_RtY

 

35th America's Cup on Foils---Oracle

Oracle Team work: https://www.youtube.com/watch?v=w5sFV3Buh10

 

Good idea!

 

35th America's Cup on Foils---Oracle

Oracle says Happy New Year: https://www.youtube.com/watch?v=9DJ80rI1Bnc

 

35th America's Cup on Foils---Oracle

Oracle Control Systems: https://www.youtube.com/watch?v=lMUgXWYdxvw

 

Informative video Doug.

Does Parker sells this research project to other teams as well? If you show this video to the French, English, Japanese, Swedish or New Zealand hydraulic engineers, they soon follow or even better: Come up with ligther and more efficient hydraulic systems of their own country.

I like this cup because of the open design contest that's going on.
That is, the turbo version each team develops.

 

35th America's Cup on Foils---Oracle

A video I don't remember seeing before of Oracles spectacular AC72-one of the greatest sailboats of all time: https://www.youtube.com/watch?v=Y6dnOlE9sjk&app=desktop

 

35th America's Cup on Foils---TNZ

Grant Dalton sustains broken wrist in motorcycle accident: http://m.nzherald.co.nz/sport/news/article.cfm?c_id=4&objectid=11578916

 

35th America's Cup on Foils---Oracle

Oracles wing: https://www.youtube.com/watch?v=NHbFaWGIJG8

 

35th America's Cup on Foils---Team Japan

From the Foiling Week: https://www.youtube.com/watch?v=V3MklJs0NQU

 

35th America's Cup on Foils---Artemis

Team Sweden has launched their second "Turbo" 45 which, among other things, is wider than a standard AC45: http://artemis-racing.americascup.com/en/news/199_ARTEMIS-RACING-LAUNCHES-SECOND-TURBO.html

 

Looking at the America's Cup Rule v1.4.pdf, I see that only the Appendix E Wing drawing is displayed and that Appendices C, D, D1 and F are blank. Are the missing drawings available elsewhere?

 

35th America's Cup on Foils---Oman

From Scuttlebutt Europe: https://www.youtube.com/watch?v=mlI3uFgaJj8

 

In the cup experience newsletter of yesterday the following is stated:

Ted: Will the "Turbo" and "Sport" boats race?
Jack: Short answer: No. Longer answer: Those boats are for testing design ideas and developing crew work but the only racing they will do is informal racing during training. In 2015 and 2016 the teams race one design AC45F catamarans with battery powered daggerboard rake controls. In 2017 the teams will race their own design "America's Cup Class" catamarans which may only use power manually generated by the crew to move the daggerboards, to change the rudder rake and to trim the wing and the jib. Since the control systems for the AC Class boats are such an important part of the design, the Turbo and Sport boats are being used to test those systems and to decide how to manage the limited power available from four grinders. Those control systems will be top secret and inside the hulls, so we won't get to see them. But winning the America's Cup in 2017 will depend on those systems and how well the crews learn to use them.
Source: http://us5.campaign-archive1.com/?u=5b22acb550cbb7053ea617522&id=c1a1ba439d&e=75ea6378bf

Jack Griffin is asked the following:
LARBAR has quite a bit exposed outside the hulls of their T boats at times:
Battery power on an AC45 for foil rake, is that how it's done?
http://forums.sailinganarchy.com/index.php?showtopic=169990&hl=

The way I see it, is replacement of hydraulics to "fly by wire systems."
Electromotors driven by batteries. Easier to maintain, more reliable, more vunerable to water. (electrocircuits will have to be waterproof for obvious reasons) Under the rules as stated above the cup is more and more moving towards a push button boat ,where the electricity is being delivered by the grinders. No more peak loads, but steady uploading of batteries and far more power by the electromotor when you need it. (An electromotor instantly deliveres torque)

For this charactaristics the brushed DC is suitable for adjustment of foil angle. (High loads)
More background on the various types and characteristics of direct current motors here:
https://en.wikipedia.org/wiki/Brushed_DC_electric_motor#Torque_and_speed_of_a_DC_motor