Sea Technology:Halmatic Building World's Tallest Yacht Mast

Monday, January 13, 2003
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 Hamble-based 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.

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter May 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

NASSCO Lays Keel for Jones Act Tanker Liberty

U.S. shipbuilder General Dynamics NASSCO hosted a keel laying ceremony on Thursday, May 26 for the Liberty, one of three new ECO Class Jones Act tankers under a

SAFE Boats Delivers First CIV for Air and Marine Operations

SAFE Boats International (SBI), a manufacturer of aluminum boats located in Bremerton, Wash., has completed the first Coastal Interceptor Vessel (CIV) on contract from U.

Defense Appropriations Bill Includes $1 Bln for US Icebreaker

The U.S. Senate Appropriations Committee’s FY2017 Defense Appropriations Bill has included $1 billion in funding to accelerate construction of a new polar icebreaker for the U.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Naval Architecture Navigation Pipelines Port Authority Ship Electronics Ship Repair Ship Simulators
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.0662 sec (15 req/sec)