Please select your home edition
Edition
Wildwind 2016 728x90

Vestas SailRocket 2 unveiled

by SailRocket.com on 9 Mar 2011
Vestas SailRocket 2 launched in March on the Isle of Wight Vestas Sailrocket - copyright http://www.sailrocket.com
The SailRocket Team today launched its second-generation speed sailing boat from East Cowes on the Isle of Wight.

Vestas SailRocket 2 is designed to be significantly faster than its predecessor, with the ultimate aim of breaking the ‘Outright World Speed Sailing Record’.


Immediately after the launch the team prepared the new boat for shipping to Walvis Bay, Namibia, where sailing record attempts will begin in April.

Objective:

Since the team started with the first boat in 2002, the record has gone up by almost nine knots or around 20%. We felt that the kite surfers were going to be the ones to watch. They proved us right last October by effectively taking the record beyond the capabilities of all the other contenders. In order to do the 500 meter long record course over 56 knots, you probably need to be hitting peak speeds around 60 knots. It would not be worth trying to build a very expensive and complex boat just to go a little quicker than a simple kite surfer for a year or two. The new boat had to do more than that to justify the all round effort.



Design Criteria:

VSR2 has to be dynamically stable in a number of conditions including a total main foil failure at 60 knots. She must remain stable when encountering either cavitation or ventilation of either foil.
VSR2 was designed to be able to handle sailing loads over 60 knots including a 1G turn with a realistic safety margin.
VSR2 has to be able to operate over 50 knots in winds from 20-30 knots and in much rougher water than the first boat.
VSR2’s wing must be very easily managed and fully depower when the main sheet is eased. It must be able to feather when we tow the boat back up to the top of the course after each run so we don’t have to lower it each time.
VSR2 must be able to carry two people at world record speeds with no reduction of safety margins.
VSR2 must be highly configurable, modular and easily folded to fit in a 40’ container.
VSR2 must have enough structural reserve to be easily upgraded for faster future attempts if necessary.

Facts:

The main fuselage and beam are angled at 20 degrees to the actual direction of travel. This is so it points directly into the direction of the ‘apparent’ wind at high speed to both reduce drag and increase stability.
The entire boat including rigging has the equivalent aerodynamic drag of a 74 cm wide sphere.
The boat should be capable of 3:1 boat speed to wind speed ratios.
Adding a second 80 kg passenger reduces the peak speed by around 2.5 knots... about the same as sailing in 1 knot less wind.
The back of the boat will lift onto the curve of the foil at around 25 knots. The leeward float will begin to fly clear of the water over 50 knots. Only the main foil, the rudder and the ‘step’ of the forward float will be in the water at high speed.
If the main foil fails at high speed, the back of the boat will lift. The result will be that the wind will push down on the beam rather than lifting it like it did on the first boat. It must do this before the boat gets too nose down.
At low speed, the boat will be predominantly steered by moving the beam and wing fore and aft by up to 3 meters. At low speed it is forward to help the boat turn away from the wind. As the boat accelerates the beam is moved aft until it is at 90 degrees to the fuselage.
The curve of the main foil determines how high the boat rides.
The three floats were all designed to have a long waterline with lots of volume at low speed, low drag at high speed as they rise onto their stepped hulls and as low an aerodynamic drag as possible as they will be flying at 20 degrees to the direction of the wind.
The front float has a very strong floor to deal with the pounding it will get at high speed.

More aboout the new VSR2 here http://www.sailrocket.com/node/285

Paul Larsen's March 6th blog:

Yesterday we wheeled Vestas Sailrocket 2 outside and fully rigged her up for the first time. We wanted to do a trial lift with the crane in preparation for the launch. Everything went smoothly in the perfectly calm evening weather. There really wasn't a breath of wind.

We hoisted the 'creature' into the sky and walked around underneath her trying to take it in. Surrounded by nothing but air she looked right at home. I guess she is as much an aircraft as she is a boat. Sailing is all about the two mediums and yet we still consider sailing boats most from the perspective of the water.

This boat is designed and built to do more than break records. She has a purpose and that is to prove a point and show a clear path forward. If she is successful then the records will come with the territory.

The weather is still looking good for Tuesday. Both boats are now rigged in Venture Quays. I have to go and play with the details now.

It will be great to add our own little bit of 'flying boat' history to East Cowes.

The event will be open to the public from 1330 onwards so if you want to come and see both the boats then this is your chance. We will be off to Namibia straight afterwards.

We will be right beside the red funnel terminal in East Cowes on March the 8th.

Cheers, Paul.


htttp://www.sailrocket.com

Naiad/Oracle SupplierMackay BoatsAncasta Ker 40+ 660x82

Related Articles

RORC Caribbean 600 race kicks off tomorrow
The light air forecast is not good news for the Italian ocean racing trimaran which is designed for much stronger winds. Soldini’s men have been monitoring the weather situation closely after the formation of a low-pressure storm system far to the north of Antigua disrupted the normal strong trade wind conditions.
Posted today at 6:00 pm
Vendée Globe – Roura to finish Monday morning with Super Superbigou
Eleven skippers have already finished and eleven were forced to abandon their race. Seven solo racers were still at sea this Sunday afternoon. Eleven skippers have already finished and eleven were forced to abandon their race.
Posted today at 5:40 pm
Spectacular opening for the 2017 RORC Caribbean 600
The highly acclaimed Antigua Band 1761 took to the stage and lit the blue touch paper. Sailors enjoyed a traditional Caribbean welcome with the Panache Steel Orchestra opening the musical entertainment, complimentary drinks and fine Caribbean fayre.
Posted today at 5:05 pm
H.H NOOD Regatta - Local sailors make waves on Tampa Bay during Day 2
Michael Zonnenberg, of the Lightning division, is currently one of only two local skippers leading a class. With sailors from across the country and beyond in town for the annual Helly Hansen National Offshore One Design (NOOD) Regatta this weekend, stand-out local skippers were a highlight of Saturday's competition. Michael Zonnenberg, of the Lightning division, is currently one of only two local skippers leading a class.
Posted today at 3:27 am
Krabi waters deliver a spectacular Day 3 of the Bay Regatta 2017
Opting for just two starts each day – monohulls / multihulls – has proven a successful strategy for 2017 The Bay Regatta Opting for just two starts each day – monohulls and multihulls – has proven a successful strategy for the 2017 The Bay Regatta, getting the boats off early and enjoying the good breeze and eye-candy that is the Andaman triangle of Phuket-Phang Nga-Krabi.
Posted on 18 Feb
Amedeo writes his own Vendée Globe story
Parisian political journalist turned solo ocean race Fabrice Amedeo secured 11th place when he crossed the finish line Parisian political journalist turned solo ocean race Fabrice Amedeo secured 11th place when he crossed the finish line off Les Sables d'Olonne at 09 hrs 03 m UTC this morning Saturday 18th February.
Posted on 18 Feb
Vendee Globe - Under a square head jury rig and storm jib - Day 104
Conrad Colman updates from the Atlantic as he makes 6.2kts under Jury Rig with 488nm remaining to sail Conrad Colman updates from the Atlantic as he makes 6.2kts under Jury Rig with 488nm remaining to sail to reach the finish line of the Vendee Globe. The single handed sailor is attempting to become the first competitor in the eight editions of the solo non-stop round the world race to complete the course using only natural energy. He has 200nm under the makeshift rig
Posted on 18 Feb
Amedeo writes his own Vendée Globe story - 11th place
Fabrice Amedeo secured 11th place in the Vendée Globe when he crossed the finish line off Les Sables d’Olonne Journalist and solo ocean race Fabrice Amedeo secured 11th place in the Vendée Globe when he crossed the finish line off Les Sables d’Olonne at 09 hrs 03 m UTC this morning Saturday 18th February. His excellent finish represents the culmination of a dream to take part in the famous solo ocean race around the world. Sailing Newrest-Matmut Amedeo's elapsed time for the course is 103 d 21h 1 m.
Posted on 18 Feb
EFG Sailing Arabia – The Tour - Douillard avenges upset with victory
French sailing star Thierry Douillard avenged shock last-minute defeat in opening stage of EFG Sailing Arabia – The Tour French sailing star Thierry Douillard avenged a shock last-minute defeat in the opening stage of EFG Sailing Arabia – The Tour by snatching victory in round two of the Gulf classic on Friday.
Posted on 18 Feb
2016 Community Sailing and Training Award winners recognized at NSPS
2016 Community Sailing and Training Award winners were celebrated as part of 2017 National Sailing Programs Symposium The 2016 Community Sailing and Training Award winners were celebrated on Thursday night as part of the 2017 National Sailing Programs Symposium (NSPS) at the Sheraton Austin Hotel at the Capitol in Austin, Texas.
Posted on 18 Feb