Andrew Pace
The AC45F is a 44ft foiling catamaran, a scaled-back version of the AC72 design. The AC45F is crewed by five people and can reach speeds of up to 41 knots. The boat is inherently unstable, requiring constant adjustment of foil, rudder and wing to keep it on an even keel. The AC45F is sailed as part of the World Series and practice days, with America's Cup teams using their own training boats to try out different control systems.
| Characteristics | Values |
|---|---|
| Length | 44ft |
| Speed | 37-38 knots |
| Crew | 5 people |
| Crew roles | Helmsman, wing trimmer, floater, jib/gennaker trimmer, bowman |
| Foils | Two large L-foils |
| Rudders | Two spade rudders with T-foils |
| Stability | Controlled by elevators and T-foils |
| Training | Training boats are used to try different control systems, perfect manoeuvres and make technical developments |
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What You'll Learn
The AC45F is a 44ft foiling catamaran
The AC45F is crewed by five people: a helmsman, wing trimmer, floater, jib/gennaker trimmer and bowman. The helmsman and wing trimmer sit next to each other and constantly feedback to one another throughout the race. The tactician on board may be the wing trimmer or another crew member.
The AC45F has two large L-foils and two spade rudders with T-foils. The L-foils have winglets that produce vertical lift, with rake controlled by elevators, while the T-foils on the rudders control horizontal stability. These foilers are inherently unstable, making it a constant battle of foil, rudder and wing adjustment to keep the catamaran on an even keel.
The AC45F can reach peak speeds of 37-38 knots, although one sailor, Freddie Carr, claimed to have reached 41 knots in an AC45F.
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The boat is crewed by five people
The AC45f boat is crewed by five people, each with a specific role. These roles are: helmsman, wing trimmer, floater, jib/gennaker trimmer and bowman. The helmsman and wing trimmer sit next to each other and feedback to one another constantly throughout the race. The tactician on board may be the wing trimmer or another crew member. The crew runs around the boat and does different jobs, including controlling the running backstays. They are often operating at max heart rate.
The AC45f is a one-design 44ft foiling catamaran. The design was developed after the 72ft AC72 design that was raced for the 34th America’s Cup in San Francisco in 2013 and conceived as a scaled-back, less expensive and more easily transportable version. Once up on foils, these boats are very fast, reaching peak speeds of 37-38 knots. They have two large L-foils and two spade rudders with T-foils. The two foils have winglets that produce vertical lift, with rake controlled by elevators, while the T-foils on the rudders control horizontal stability.
The AC45f foiler was the one-design boat raced in 2016, leading up to the America’s Cup in Bermuda. The top speed achieved in one was 41 knots. These foilers are inherently unstable, making it a constant battle of foil, rudder and wing adjustment to keep the foiling catamaran on an even keel.
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The AC45F is unstable and requires constant adjustment
The AC45F is a foiling catamaran, which means it is inherently unstable. It requires constant adjustment of the foil, rudder and wing to keep the boat on an even keel. The two foils have winglets that produce vertical lift, with rake controlled by elevators, while the T-foils on the rudders control horizontal stability. The helmsman and wing trimmer sit next to each other and feedback to one another constantly throughout the racing. The AC45F is a scaled-back, less expensive and more easily transportable version of the AC72 design. Once up on foils, these boats are very fast, reaching peak speeds of 37-38 knots. They are crewed by five people: a helmsman, wing trimmer, floater, jib/gennaker trimmer and bowman.
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The AC45F is a scaled-back version of the AC72
The AC45F is crewed by five people: a helmsman, wing trimmer, floater, jib/gennaker trimmer and bowman. The helmsman and wing trimmer sit next to each other and feedback to one another constantly throughout the racing. The AC45F has two large L-foils and two spade rudders with T-foils. The two foils have winglets that produce vertical lift, with rake controlled by elevators, while the T-foils on the rudders control horizontal stability.
The AC45F is an inherently unstable boat, making it a constant battle of foil, rudder and wing adjustment to keep the foiling catamaran on an even keel. Once up on foils, these boats are very fast, reaching peak speeds of 37-38 knots. The AC45F was raced in the Louis Vuitton America's Cup World Series in 2016, leading up to the America's Cup in Bermuda.
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The AC45F is used in the America's Cup World Series
The AC45F is a foiling catamaran used in the Louis Vuitton America's Cup World Series. The AC45F is a one-design 44ft foiling catamaran, with two large L-foils and two spade rudders with T-foils. The AC45F was developed as a scaled-back, less expensive, and more easily transportable version of the 72ft AC72 design that was raced for the 34th America's Cup in San Francisco in 2013. The AC45F is crewed by five people: a helmsman, wing trimmer, floater, jib/gennaker trimmer, and bowman. The helmsman and wing trimmer sit next to each other and constantly feedback to one another throughout the race. The two foils have winglets that produce vertical lift, with rake controlled by elevators, while the T-foils on the rudders control horizontal stability. The AC45F is an inherently unstable boat, requiring constant adjustment of foil, rudder, and wing to keep the catamaran on an even keel. The AC45F is capable of reaching peak speeds of 37-38 knots, with one boat reaching a top speed of 41 knots.
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Frequently asked questions
The 'f' stands for 'foiling'.
The AC45f is a one-design 44ft foiling catamaran. The two foils have winglets that produce vertical lift, with rake controlled by elevators, while the T-foils on the rudders control horizontal stability.
The AC45f can reach peak speeds of 37-38 knots. The top speed recorded in one was 41 knots.
The AC45f is crewed by five people: a helmsman, wing trimmer, floater, jib/gennaker trimmer and bowman.
