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 Reporter March 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

Otto Marine's Financial Health on the Mend

Michael See Kian Heng, Group Executive Director of Singapore-based offshore vessel owners & shipbuilders Otto Marine, says that his company reported revenue of US$512.

Ultra-deepwater Drillship 'Maersk Valiant' Delivered

Maersk Drilling advises that its second new drillship, 'Maersk Valiant', has been delivered from the Samsung Heavy Industries (SHI) shipyard in Geoje-Si, South-Korea.

Latest Shipbuilding Contracts Include VLCC Order for Philippine Yard

In the latest Clarkson Hellas S&P Weekly Bulletin newbuilding orders are reported in Far East shipyards for a range of vessels as follows: Bulk carriers Clarkson

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Navigation Offshore Oil Pipelines Pod Propulsion Salvage Ship Simulators Shipbuilding / Vessel Construction Winch
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: 0.0937 sec (11 req/sec)