Ad Hoc Marine Designs is championing the feasibility of its Typhoon Class Swath design as the best suited windfarm vessel to meet significant wave height requirements for future rounds of offshore windfarms.
The company has recently released details of its new Walk to Work (W2W) Swath CTV capable of servicing the next generation of Round 3 windfarms, giving operators a “better alternative” to ordering larger vessels.
“The next round of windfarms and the future vessel requirements for higher wave height and being longer at sea is due to windfarms being placed further out to sea,” said John Kecsmar, naval architect, Ad Hoc Marine Designs.
“Our Typhoon Class Swath design is the best one on the market to meet these requirements going forward.”
Mr Kecsmar refutes the view that Swath designs have more resistance at higher speeds, increasing fuel consumption and operating costs for operators. Existing CTV designs are comparable.
On the contrary he said, existing CTVs are unsuitable for the much longer voyages to the outer edges of round 2 and round 3 farms, principally owing to the requirements of running and transferring in 3m high seas, especially considering most of their profile will be stationary/loitering.
The choice of which type of vessel to choose rests with ensuring the motions during transit and transfer are sufficiently low to prevent seasickness and fatigue in the higher sea states.
This has historically meant going for a much larger vessel to move the natural periods of motions away from the expected encounter periods.
But the success of the 26m Typhoon Class, MCS Swath 1, which runs in seas states with vertical accelerations less than 0.1g in Hs=2.5+m seas, points to an effective alternative to ordering a larger vessel.
The all new 41m Swath uses the experience of MCS Swath 1 to offer not only superior seakeeping during transits, but also transfers.
It tunes the Swaths’ motions away from expected sea states coupled with the addition of Island Engineering’s zero heave mode built-in to the motion control system.
This has ensured that the whole vessel is ‘heave damped’ and does not require any heave dampened gangway for transfers.
The 41m CTV is designed to run in Hs=3.5m sea heights and adopts the same philosophy of MCS Swath 2, by going quad drive with four CAT 3512C engines rated at 1678kW each, giving 25 knots.
This enables the operator to reduce fuel consumption by running on just one or two smaller engines when on the tower, or just the gensets when in ‘hotel’ mode for long extended periods.
The vessel is capable of being at sea for up to two weeks, has accommodation for 24 technicians in their own individual cabins and can carry any combination of 4 ISO containers.
It also comes with the option of Ad Hoc’s unique DampaCat system which increases damping even further.
For operators after an even more compact vessel, Ad Hoc has a slightly smaller 33m Typhoon Class Swath that is a smaller version of the 41m. It sleeps 12 passengers and provided up to two weeks endurance offshore.
Predicting Australia's Future Marine Env
Rutgers Findings May Predict the Future
When Whales and Oil Rigs Meet
Unstable Atlantic Deep Ocean Circulation
BMT Nigel Gee Provides Advanced Windfarm
Inquisitive Students Meet with Scientist
Private Sector Participation in Stakehol
New Subsea Report on Technology, Safety
Unmanned Vehicles - The Future of Unders
Could Florida´s Ocean Currents Become a
Sub-Sea Links Herald New Digital Future
The Future Is Now: Navy’s Autonomous Swa
ORPC Proves Design of Its Future Tidal E
ORPC Proves Design of Its Future Tidal E
Saab and Damen Team for Walrus Future S
Final Rule on Vessel Requirements for No
Solving Corrosive Ocean Mystery Reveals
Meet MMT´s New Management Team and Re-St
NASA Prepares for Future Space Explorati
OCEAN + 50: Projecting the Future of Glo
Versatile Workboat is a Windfarm Winner
Extreme Pacific Sea Level Events to Doub
The Norwegian University of Science and
Our Ocean Future – Our Ocean Economy: Su
The Autonomous Robotics Flying Node Syst
Study of Cloud Cover in Tropical Pacific
Global Ocean Business Community to Meet
One Thousand Drifters and One Future Sat
AMC SWATH Design Collaboration with Ad H
BSEE Approves Updated Permit for Explora
Final Regulations to Raise Safety & Envi
French and British Industries to Develop
Future USS Gabrielle Giffords Completes
A New Dead Zone in the Indian Ocean Coul
Withdrawal of Atlantic and Arctic Ocean
Future USS Rafael Peralta Completes Acce
Future USS Sioux City to be Commissioned
Keel Laid for Future USS Lyndon B. Johns
Future USS Rafael Peralta (DDG 115) Deli
U.S. Navy Christens Future USS Tulsa (LC
Keel Laid for Future USS Frank E. Peters
Inmarsat Signs Radio Holland Service Agr
MCT Submarine Cable Launch Promises Brig
Evolutions In Subsea Fiber Optic Connect
Future USS Gerald R. Ford Underway for B
UN President and World Ocean Council CEO
Navy, Marines Spotlight the Future of Am
Future USS Omaha (LCS 12) Completes Acce
Future USS Gerald R. Ford Aircraft Carri
Eni Meets the Regulatory Requirements fo
Canyon Awarded Trenching Contract for Ho
Establishing Simulation Platform for Cre
Lockheed Martin-Led Team Launches Future
Plastic Oceans: A Cleaner Future With Oc
Royal Navy Unveils Radical Future Submar
US Navy Launches Next Destroyer, the Fut
Female American Students Explore Future
Navy Accepts Delivery of Future USS Colo
Japanese Research Sees a Sustainable Fut
Future USS Little Rock to be Commissione
How Ocean Science Students Gain Valuable
Hydro17: Connecting the Future
Rovco Wins Three Year Gwynt y Môr Offsho
Trelleborg Builds Strategic Alliance for
Keel Laid for Future Destroyer USS Lenah
Ping DSP Unveils Turnkey Shallow Water W
Facing the Future at Subsea Expo 2018
Maersk, Statoil and OECD to Discuss Futu
Keel Laid for Future USNS Miguel Keith
Shaping the Future of Energy: Statoil’s
OPITO’s Energize Your Future (EYF) Initi
PingDSP Delivers Deep Water Swath Bathym
Naval Group Engages KBR for Australia's
NOC Contributes to Major New Government
BOEM Seeks Input on Future Offshore Rene
Enabling the Naval Vessel Bridges of the
Rotech Subsea Opens Office in Kuala Lump
Roxtec Supplies Scotland’s Largest Offsh
The ICPC Addresses Three Future Challeng
US Navy Accepts Delivery of Future USS T
Europe’s Ocean Energy Industry Will Meet
NSRI Strengthens Board to Meet Demands o
ABB to Equip High-Spec Service Operation
Decommissioning Leadership Group Meets t
Alpha Offshore Service Awarded Blade Rep
U.S. Navy Launches the Future USS Frank
Dominion Energy and Ørsted to Develop Wi