May 12th, 2010 
molitva leyli Wave Piercing
wave piercing catamaran, fast ferry – FRED OLSEN Express
A wave-piercing boat hull has a very fine bow, with reduced buoyancy in the forward portions. When a wave is encountered, the lack of buoyancy means the hull pierces through the water rather than riding over the top – resulting in a smoother ride than traditional designs, and in diminished stress on the vessel and crew. It also reduces a boat’s wave making resistance.
Australian built military Wave Piercing Catamaran
Design theory calls for very long thin hulls, so in practice most are multi-hulls such as catamarans. The main current usage areas are passenger ferries and military craft.
Wave Piercing Catamaran
High-Speed Passenger and Vehicle Ferry
The Wave Piercing Catamaran is a good example of innovation through the combination of two technologies.
The traditional catamaran, developed over the centuries by South Pacific cultures, is a fast, stable, two-hulled boat, but on choppy seas it gives a rough ride. In 1984 New Zealand-born Phil Hercus successfully combined the strength and speed of the catamaran with a wave-piercing hull design called SWATH (Small Waterplane Area Twin Hull). SWATHs are used to stabilise giant oil platforms.
FRED OLSEN Express-Fast Ferry Passanger -Wave piercing catamaran
wave piercing catamaran, fast ferry – FRED OLSEN Express, front view
BUQUEBUS Fast Ferry -Wave Piercing Catamaran
wave piercing catamaran, fast ferry – BUQUEBUS
Key Players:
Builder : Incat, Australia
Owner/Manager: Buquebus
Power:
Output: 28,320kW
Performance:
Service Speed; 48.2kt
Main Dimensions:
Length oa: 91.3m
Length wl: 81.33m
Beam (moulded): 26m
Tonnage:
Deadweight: 500t
Passenger Capacity ; 800
Engines:
Main Engines: 4 x ruston 20 RK270, 7080kW
DESIGN
The Catalonia is fabricated from marine grade aluminium alloys. It has an overall length of 91.3m and a waterline length of 81.33m. It has an overall beam of 26m and a hull beam of 4.33m, excluding fenders. It has a deadweight of 500t.
The Catalonia hull is designed to ensure that the vessel can accelerate quickly, minimising wave creation. At the bow, the waterborne hulls are 10% immersed and contain 10% reserve buoyancy. The remaining 80% reserve buoyancy is held in the forward central hull. This results in a very versatile hull form, which is sympathetic to a safe ride in all weather conditions and sea angles.
The waterline length has been increased by more than 22m (37%) over Incat’s 74m car ferries, ensuring a much more comfortable ride for passengers. Part of the improvement can also be attributed to the ride control system.
The Evolution One12 is capable of carrying up to 1,500 tonnes deadweight and is the largest diesel powered high speed catamaran in the world. For the commercial market the Evolution One12 SeaFrame can be fitted with luxurious yet practical accommodation for up to 1,500 persons. Developed by Revolution Design, an interior well suited to the demands of an intensive passenger ferry service can be provided.
FACILITIES
The Catalonia carries 877 passengers and 225 cars, or a combination of cars and up to four coaches. Passengers enter the interior aft via the vehicle deck stairs or terminal gangway. A port passage provides access for disabled passengers. A central atrium-style lounge located midships on tier 2 provides the focal point for all passenger services. The ship’s office, located starboard forward, serves as an information centre and money exchange. The port side houses an arcade-games area.
An open staircase, located in the central atrium, extends to tier 3, where passengers are greeted by panoramic views of the horizon and the wave piercer bar.
Passengers on tier 3 have the choice of banquette or aircraft-style seating, arranged with facing tables, and quiet rooms/business lounges. The forward observation deck allows passengers to view the operations of the bridge or to just enjoy the ocean view.
PROPULSION
The Catalonia is the first vessel in the world to be fitted with the new Caterpillar 3618 engines built at the Caterpillar Large Engine Centre in Spain. Each engine weighs 36.4t and develops 7,200kW. Each engine drives a transom mounted waterjet (Lips LJ145D) through a Renk ASL60 reduction gearbox. The custom-designed Lipstronic jet control system provides, apart from steering and reversing, the option of thrust vectoring and autopilot.
Two 230kW Caterpillar generators in each hull feed associated independent main switchboards, capable of disconnection in an emergency.
AUTOMATION AND CONTROL
The ship’s position is provided by a Decca MX400B, a six-channel GPS with built-in DGPS Beacon receiver. Primary navigation is performed by the two Decca BridgeMaster II 250 Series radars. The Navigator’s radar uses a 30kW S-Band transceiver transmitting at 3GHz with a 12ft scanner. The Captain’s radar is an X-Band 25kW unit, transmitting at 9.4GHz into a 6ft scanner. A Skipper GDS101 with a 50kHz transceiver provides optimum sea bottom detection. Long-range communications in the 2MHz to 30MHz band is catered for by a Skanti TRP7200 Transceiver. Two Skanti VHF3000 25W transceivers operating in the frequency range 155MHz to 163MHz provide short-range communications.
TASMANIA DEVIL CAT
“The Devil Cat” , According to their official site, “Experience the exhilaration of crossing Bass Strait at 80 kph in Australia’s largest commercial high-speed catamaran. As one of the fastest passenger ships of its type in the world, it will whisk you from Victoria to Tassie in just 6 hours. Built in Hobart, the 91 metre Devil Cat holds 740 passengers and 200 cars.”
high speed catamaran, wave piercing catamaran ferry
LDLines Fast Wave Piercing Catamaran Ferry
HSC High Speed Catamaran in the world 112m, wave piercing catamaran
Wave Pierching Catamaran Yacht
SHER KHAN – Agressive Looking Exterior
This is SHER KHAN, a 75-footer. She was built in 2003 in Brisbane and offers three double cabins for 6 guests with a crew of 3. Her Asian interior design contrasts with her agressive exterior. Apparently SHER KHAN has been sold and was located in Phuket, Thailand. If you have more information let me know.
HARUKU – Incat Crowther
22 meter designed by famous catamarans designers Incat Crowther. HARUKU was designed for an Indonesian Owner. HARUKU has accomodations for 6 guest and 3 crews. With a service speed of 24 knots she is also a long distance cruiser. She was launched in 2002 by the Austal group which is a garantee of her quality, they have the most impressive list of launched motor catamarans with facilities in Australia, Asia and the USA.
ULTIMATE LADY – CRAIG LOOMES DESIGN GROUP LIMITED
A 26.7 meter wave piercing luxury catamaran, Super Yacht of the Year Award in 1998. ULTIMATE LADY was designed by New Zealand CRAIG LOOMES DESIGN GROUP LIMITED. I guess if you are looking a wave piercing yacht you should get in touch with those guys. They are wave piercing specialists from catamarans to trimarans with design project up to 86 meters. ULTIMATED LADY can cruise 3000 miles at 25 knots.
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