AC75

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

AC75
Error creating thumbnail:
Ineos Team UK AC75
Development
Year2017 –
No. built8 launched
Roleinshore racing
NameAC75
Boat
Crew11 + 1 optional guest
Displacement6,450 kg (14,220 lb) lightship
7,600 kg (16,800 lb) loaded
Draft5.00 m (16 ft)
Hull
TypeFoiling Monohull
Constructioncarbonfiber
LOA22.86 m (75 ft)
LOH20.70 m (68 ft)
Beam5.00 m (16 ft)
Hull appendages
Generaltopside-mounted ballasted canting T-wing foils
Ballastset in foils
Ruddercenterline T-wing rudder
Rig
Rig typebermuda sloop
Mast length26.50 m (87 ft)
Sails
Generaltwo semi-battened mainsail skins, one headsail skin
Mainsail area145 m2 (1,560 sq ft)
Jib/genoa area90 m2 (970 sq ft)
Spinnaker areaN/A
[[[d:Lua error in Module:WikidataIB at line 2822: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]]

The AC75 (America's Cup 75) is a racing yacht used in the 2021 America's Cup and 37th America's Cup matches and planned to be used for the 38th America's Cup match. The 23 m (75 ft) monohulls feature wing-like sailing hydrofoils mounted under the hull, a soft wingsail,[1] and no keel.[2]

The rule

[edit | edit source]

Following the 2017 America's Cup, winners Royal New Zealand Yacht Squadron accepted a notice of challenge from Circolo della Vela Sicilia stipulating a monohull would be used in 2021. Conceptual graphics of a monohull with soft sails and topside canting hydrofoils were released on 21 November 2017, and the first draft of the class rule was published by the defender and the challenger of record on 29 March 2018.[3] The return to monohulls with soft sails after three America's Cups on multihulls with wingsails is reminiscent of earlier America's Cup classes and seaworthy traditions, but the rule included hydrofoils to attract high performance crews and large TV audiences.[4]

Under the protocol, each competing club could build two yachts, but two-boat testing was excluded except during the PRADA Christmas Cup on 17–20 December 2020, and for the defenders during the PRADA Cup 15 January – 22 February 2021. To reduce design and testing costs of the class unique class features, the rule specified foil controlling systems all manufactured by defender team and foil arms all manufactured by the Challenger of Record's builder Persico Marine.

List of AC75 yachts

[edit | edit source]
Syndicate Name Shipyard Launched Competitive history Current Notes
New Zealand Emirates Team New Zealand Te Aihe ETNZ Auckland, 6 September 2019 Trial boat (never raced) Sold to Alinghi as a training boat for AC37. Renamed BoatZero[5] [6]
United States American Magic Defiant American Magic Newport, RI, 14 September 2019 Trial boat (never raced) [7]
Italy Luna Rossa Prada Pirelli Luna Rossa Persico Marine Cagliari, 2 October 2019 Trial boat (never raced) [8]
United Kingdom INEOS Team UK Britannia Carrington Boats Portsmouth, 4 October 2019 Trial boat (never raced) [9]
United States American Magic Patriot American Magic Auckland, 16 October 2020 Raced in the 2021 Prada Cup Used as training boat for AC37. De-commissioned in February 2023[10] [11][12]
United Kingdom INEOS Team UK Britannia Carrington Boats Auckland, 17 October 2020 Raced in the 2021 Prada Cup [13]
Italy Luna Rossa Prada Pirelli Luna Rossa Persico Marine Auckland, 20 October 2020 Winner of the 2021 Prada Cup
Lost the 2021 America's Cup to Emirates Team New Zealand (7–3)		 [14]
New Zealand Emirates Team New Zealand Te Rehutai ETNZ Auckland, 18 November 2020 Winner of the 2021 America's Cup Used as training boat for AC37[15] [16]
New Zealand Emirates Team New Zealand Taihoro ETNZ Auckland, 11 April 2024 Winner of the 2024 America's Cup [17][18]
Italy Luna Rossa Prada Pirelli Luna Rossa Persico Marine Cagliari, 13 April 2024 Raced in the 2024 Louis Vuitton Cup [19]
Switzerland Alinghi Red Bull Racing BoatOne ARBR Barcelona, 16 April 2024 Raced in the 2024 Louis Vuitton Cup [20]
United Kingdom INEOS Britannia Britannia Carrington Boats Barcelona, 1 May 2024 Winner of the 2024 Louis Vuitton Cup
Lost the 2024 America's Cup to Emirates Team New Zealand (7–2) 		[21][22]
United States American Magic Patriot American Magic Barcelona, 7 May 2024 Raced in the 2024 Louis Vuitton Cup [23]
France Orient Express Team Orient Express Multiplast Barcelona, 29 May 2024 Raced in the 2024 Louis Vuitton Cup [24][25]

The visible differences between designs have been commented by most of the yachtbuilding community and the specialized press as each of the boats were launched.[26][27]

Speeds

[edit | edit source]

Potential speed of 50 kn (93 km/h; 58 mph) was claimed based on computer simulations.[28]

Notable high speeds actually recorded in racing were:

  • 49.1 kn (90.9 km/h; 56.5 mph) by Te Rehutai (in 15 and 19 kn (28 and 35 km/h; 17 and 22 mph)) on 17 December 2020.[29]
  • 50.25 kn (93.06 km/h; 57.83 mph) by Britannia during day 4 of the Prada Cup 23 January 2021.
  • 53.31 kn (98.73 km/h; 61.35 mph) by Patriot (American Magic) during day 1 of the Prada Cup Semifinals (in breeze gusting up to 22 kn (41 km/h; 25 mph)) on 29 January 2021.[30]
  • 55.2 kn (102.2 km/h; 63.5 mph) by Luna Rossa (Luna Rossa Prada Pirelli) during day 3 of the Louis Vuitton Cup Final on 29 September 2024.
  • 55.5 kn (102.8 km/h; 63.9 mph) by Britannia (INEOS Britannia) during day 5 of the Louis Vuitton Cup Final on 1 October 2024.

Controversy

[edit | edit source]

Following the release of the canting hydrofoil design in 2017, Brazilian shipwright Manoel Chaves contacted ETNZ to inform them that he held a patent[31] for the proposed design.[32] Team New Zealand apparently ignored correspondence from Chaves' patent attorneys for over two years before simply dismissing the allegations.[33] ETNZ defended themselves with the statement "every good idea has 1000 fathers".[34]

See also

[edit | edit source]

References

[edit | edit source]
  1. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  2. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  3. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  4. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  5. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  6. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  7. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  8. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  9. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  10. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  11. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  12. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  13. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  14. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  15. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  16. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  17. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  18. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  19. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  20. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  21. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  22. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  23. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  24. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  25. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  26. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  27. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  28. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  29. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  30. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  31. ^ NZ 740860 
  32. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  33. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  34. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
[edit | edit source]

Lua error in Module:Sister_project_links at line 396: attempt to index field 'wikibase' (a nil value).

Retrieved from "http://70.231.62.181/index.php?title=AC75&oldid=12921693"