Halmatic Building World's Tallest Yacht Mast
295-ft. (89.9-m) Mast to support 2,900 sq. m. of Sail Halmatic is manufacturing a 295-ft.
(90-m) mast that will be fitted on the world's biggest sloop, currently under construction by its parent Vosper Thornycroft Shipbuilding, part of the VT Group. Mirabella V will be around 246 ft. (75 m) long and its mast will support some 2.900 sq. m. of sail. Halmatic will use its long-standing expertise in composite manufacture to produce the hollow carbon epoxy mast, which will have a maximum cross section of 1.5 m and structural thickness of up to 32 mm.
The mast is manufactured in halves, with one comprising a complete length and the other divided into three sections.
Framework for the mold will be made from MDF cut on VT's advanced laser cutting and profiling machine. The manufacturing process, a similar method to that used in the production of Grand Prix racing cars and the aerospace industry, will consist of layers of cloth pre impregnated with resin made pliable and laid on top of each other. A vacuum bag will be used to create the required pressure every few layers. Structural expertise will be provided by Hamblebased High Modulus, who are involved in composite engineering aspects for the total Mirabella project.
At regular intervals during the build the mast will be cured using a heat process with temperatures up to 70 degrees C. Carbon compression tubes will be pre-fitted to coincide with the position of each spreader. It is estimated that some five tons of cabling will be fitted within the hollow centre of the mast, including a mass of sensors to monitor the sail performance. Finally, the sections of the mast will be glued together using an epoxy adhesive before the mast is stepped following the Mirabella V's launch in May 2003.
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Other stories from January 2003 issue
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- King Named CEO for VT Halter Marine page: 8
- Halmatic Pilot Boats for Spain's Atlantic Coast page: 10
- Bollinger Delivers Ms. Sara Jane page: 11
- Air-to-Sea Technology Transfer page: 12
- Southbury LES:"Outages are Not Acceptable" page: 15
- Nera Introduces F33 page: 18
- Sending Screws, Pistons and Lube Oil via Satellite page: 19
- SeaWave Makes Maritime Communication Seamless page: 19
- The Maritime Transportation Security Act 101 page: 20
- Underwater Intervention 2003 Set for New Orleans page: 24
- Cygnus Thickness Gauge Designed for VideoRay page: 25
- Halmatic Building World's Tallest Yacht Mast page: 26
- To the North, South And A Little Island Sheltered page: 27
- A New England Shipyard Comes of Age page: 32
- Derecktor Expansion in Bridgeport Extends Capabilities page: 34
- Price, Quality, Schedule page: 35
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- Old Dominion Gets New Research Vessel page: 37
- Speed to Spare page: 38
- LSA Enjoys Strong Orderbook page: 40
- Aircraft Carrier of the Future page: 43
- Cummins Introduces the QSK60 page: 44
- Emission-Reduction Test a Success page: 44
- AMSC Passes Milestone page: 44
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- Market Report: Long-Term Healthy LNG Ship Demand page: 51
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