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Displaying items by tag: hydrofoil

Swedish tech company Candela has showcased its electric hydrofoiling Candela C-7 through the waterways of Venice and says its wake-free design could save Venice from moto ondoso or wake damage.

As Afloat reported previously, waves caused by speedboats have become a genuine threat to the residents and buildings of Venice. The wake of the myriad taxi boats, water ambulances and police boats needed for transport in Venice erode the wooden pillars on which the city’s iconic houses stand. 

According to the manufacturer, the Candela C-7 is the first speedboat that doesn’t create wake. ‘Flying’ above the water’s surface at high speeds, the company says hydrofoiling is the future for waterborne transportation.

Candela is currently working on the P-12 water taxi and the P-30 electric ferry, the latter has been purchased by Swedish authorities for public transport use in Candela’s hometown of Stockholm.

In a report by Reuters, Candela’s Maria Rohman says: “The boat has five sensors that read the water and speak to the computer system in the boat and the computer system tells the foils to move and they move 100 times a second, back and forth and diagonal to keep the boat stable. So when you are up flying it takes off at about 15 knots.”

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Billed as the world’s first electric hydrofoil speedboat, the Candela Seven has been brought to market by Swedish startup, Candela Speed Boat.

Propelled by the Torqeedo Deep Blue 50i electric outboard engine the boat cruises above the water, its weight rested on two hydrofoils. The vessel has a top speed of 55 km/h and a range of 92 km when driven at 37 km/h.

“The Candela Seven combines minimum energy consumption with maximum performance,” says Dr Ralf Plieninger, Managing Director of Torqeedo. “The electric hydrofoil is a game-changer for marine electric mobility.”

The Candela Seven’s development has been driven by Candela Speed Boat’s CEO, Gustav Hasselskog, who wanted to know if it was possible to combine modern electric motors with the hydrofoils that are now standard equipment in much competitive sailboat racing. 

A leader in electric drives for watercraft up to 120-feet, Torqeedo was founded to solve similar problems. “Even though we’ve grown a lot since then,” says Plieninger, “we’ve held onto our start-up culture. We enjoy solving problems and doing things differently.”

Torqeedo deep blue electric engineTorqeedo's deep blue electric engine unit

The Candela Seven is 7.7 metres long and seats six. Its Deep Blue electric motor accelerates the boat smoothly until the vessel reaches 27km when it rises out of the water onto its hydrofoils. “The energy consumption drops 80 per cent in hydrofoil mode—that gives us a range similar to a gasoline engine,” says Hasselskog. It’s said the boat runs very smoothly on its hydrofoils with no slamming into waves, and no noise.

The flying Candela SevenThe flying Candela Seven Photo: Christian Brecheis

The Candela Seven’s design is based on insights from the field of aeronautics. The hull and deck are made of carbon fibre and weigh 180 kg. At a total weight of 1300 kg, the Candela Seven is thirty per cent lighter than a conventional fibreglass boat.

Candela has also developed a ‘flight control’ system with multiple sensors that supply it with GPS, sonar, and engine data. The system then mechanically adjusts the main and aft foils on the fly. This is designed to keep the boat steady in heavy waves or during sharp turns. And if travelling through shallow water, the hydrofoils retract by tapping the touch screen.

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#channelrecord –  Hannah White has become the fastest person to cross the Channel in a single-handed dinghy. She completed the gruelling task in a sailing hydrofoil, a small boat which lifts above the water on two hydrofoils as it gathers speed. Starting from Cap de Gris in France, she arrived at Dover in England in a record time of 3 hours, 44 minutes and 39 seconds.

Hannah, a relative beginner in hydrofoil sailing, only started to learn how to master this unique boat in February. Training for this Channel crossing challenge is a precursor to her ultimate quest: to break the Women's Speed Sailing World Record over one nautical mile next year in a unique, purpose-built sailing hydrofoil.

A keen adventurer, Hannah has previously sailed the Atlantic solo three times, participated in the gruelling Haute Route Cycle Race across the French Alps and kayaked 205 miles across the rivers of England. She has been a Land Rover Global Ambassador since 2013.

Hannah White said: "I'm much more used to an arduous 3000-mile slog across oceans as opposed to a 24-mile sprint across the Channel, so the transition has been a real eye-opener. Speed sailing requires a very different physiology to long distance races, so this was really an opportunity for me to build my skills over a shorter distance in a hydrofoiling boat."

Mark Cameron, Jaguar Land Rover Global Experiential Marketing Director, said: "This Channel crossing highlights Hannah's incredible ability to push herself beyond the limits of normal capability. As a global ambassador for Land Rover, Hannah embodies all the characteristics that are so central to our brand; strength, determination and an ability to go above and beyond."

Hannah will be attempting to break the Women's Speed Sailing Record over one nautical mile in the first quarter of 2016 in Speedbird, her state-of-the-art, unique hydrofoil sailboat. Land Rover is collaborating in the development of the Speedbird boat, drawing from its unparalleled innovation, engineering expertise and industry-leading facilitiesto ensure the boat is capable of breaking the current world record.

Hannah will be exhibiting the Speedbird boat at the Cardiff Act of the Extreme Sailing SeriesTM on the 19-21 June 2015.

Published in News Update

#londonobatshow – A first for tomorrow's London Boat Show is the real-time build of a 5.9m sailing catamaran with a cutting-edge hydrofoil system developed by Southampton Solent University. Afloat first reported on the new British foiling cat last September when she made her UK debut.

The first production model of the 'Solent Whisper', which has already turned heads at both the PSP Southampton Boat Show and the Paris International Boat Show, will take shape before the eyes of the media and the public. The retail version of the craft, which comfortably achieves over 25 knots and incorporates a revolutionary new hydrofoil system, is being manufactured by White Formula UK Ltd.

Helena Lucas, Paralympic Gold medallist and graduate of Southampton Solent University, has sailed the prototype boat and will be on hand at The Datatag Lab to help 'launch' the catamaran building activities on Friday 9 January at 1.45pm.

Visitors will be able to watch all the stages of production from the preparation of the moulds, to the final infusion of resin into the carbon fibre of the boat.

The new hydrofoil technology is the brainchild of Ron Price, a Southampton Solent University yacht and powercraft design graduate who is now Senior Lecturer in Naval Architecture at the University's Warsash Maritime Academy.

Published in News Update

Since our report on Ireland's debut at the Moth worlds in January it was inevitable that one of these high speed sailing dinghies would appear on Irish waters soon enough. Yesterday, John Chambers took his first tack of 2011 on Dublin Bay in a Moth he bought in France. Clearly the high speed foiling craft did not go unnoticed. It got an immediate thumbs up from the nearby DMYC frostbite fleet sailing their penultimate race.

The Bladerider Moth came blasting back from the Baily lighthouse, according to eyewitness accounts.  It has hydrofoils on the dagger board and rudder which lift the boat out of the water when sufficient speed is achieved.

It is Chamber's intention to sail the innovative dinghy in this Summer's Dublin Bay Sailing Club (DBSC) summer season. 

Video of the Dublin Bay sail plus a photo from Bob Hobby is below:

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Moth sailing on Dublin bay. Photo: Bob Hobby

Moth sailing in Ireland on facebook HERE

 

Published in Moth

Howth 17 information

The oldest one-design keelboat racing class in the world is still competing today to its original 1897 design exclusively at Howth Yacht club.

Howth 17 FAQs

The Howth 17 is a type of keelboat. It is a 3-man single-design keelboat designed to race in the waters off Howth and Dublin Bay.

The Howth Seventeen is just 22ft 6ins in hull length.

The Howth 17 class is raced and maintained by the Association members preserving the unique heritage of the boats. Association Members maintain the vibrancy of the Class by racing and cruising together as a class and also encourage new participants to the Class in order to maintain succession. This philosophy is taken account of and explained when the boats are sold.

The boat is the oldest one-design keelboat racing class in the world and it is still racing today to its original design exclusively at Howth Yacht club. It has important historical and heritage value keep alive by a vibrant class of members who race and cruise the boats.

Although 21 boats are in existence, a full fleet rarely sails buy turnouts for the annual championships are regularly in the high teens.

The plans of the Howth 17 were originally drawn by Walter Herbert Boyd in 1897 for Howth Sailing Club. The boat was launched in Ireland in 1898.

They were originally built by John Hilditch at Carrickfergus, County Down. Initially, five boats were constructed by him and sailed the 90-mile passage to Howth in the spring of 1898. The latest Number 21 was built in France in 2017.

The Howth 17s were designed to combat local conditions in Howth that many of the keel-less boats of that era such as the 'Half-Rater' would have found difficult.

The original fleet of five, Rita, Leila, Silver Moon, Aura and Hera, was increased in 1900 with the addition of Pauline, Zaida and Anita. By 1913 the class had increased to fourteen boats. The extra nine were commissioned by Dublin Bay Sailing Club for racing from Kingstown (Dún Laoghaire) - Echo, Sylvia, Mimosa, Deilginis, Rosemary, Gladys, Bobolink, Eileen and Nautilus. Gradually the boats found their way to Howth from various places, including the Solent and by the latter part of the 20th century they were all based there. The class, however, was reduced to 15 due to mishaps and storm damage for a few short years but in May 1988 Isobel and Erica were launched at Howth Yacht Club, the boats having been built in a shed at Howth Castle - the first of the class actually built in Howth.

The basic wooden Howth 17 specification was for a stem and keel of oak and elm, deadwood and frames of oak, planking of yellow pine above the waterline and red pine below, a shelf of pitch pine and a topstrake of teak, larch deck-beams and yellow pine planking and Baltic spruce spars with a keel of lead. Other than the inclusion of teak, the boats were designed to be built of materials which at that time were readily available. However today yellow pine and pitch pine are scarce, their properties of endurance and longevity much appreciated and very much in evidence on the original five boats.

 

It is always a busy 60-race season of regular midweek evening and Saturday afternoon contests plus regattas and the Howth Autumn League.

In 2017, a new Howth 17 Orla, No 21, was built for Ian Malcolm. The construction of Orla began in September 2016 at Skol ar Mor, the boat-building school run by American Mike Newmeyer and his dedicated team of instructor-craftsmen at Mesquer in southern Brittany. In 2018, Storm Emma wrought extensive destruction through the seven Howth Seventeens stored in their much-damaged shed on Howth’s East Pier at the beginning of March 2018, it was feared that several of the boats – which since 1898 have been the very heart of Howth sailing – would be written off. But in the end only one – David O’Connell’s Anita built in 1900 by James Clancy of Dun Laoghaire – was assessed as needing a complete re-build. Anita was rebuilt by Paul Robert and his team at Les Ateliers de l’Enfer in Douarnenez in Brittany in 2019 and Brought home to Howth.

The Howth 17 has a gaff rig.

The total sail area is 305 sq ft (28.3 m2).

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