R/V SIKULIAQ!

Project Update

RVTEC 2011

Marc Willis, OSU, SIKULIAQ Marine Science Technical Director, Shipyard Office Steve Hartz, UAF, SIKULIAQ Science Operations Manager, Seward Marine Center

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•  IACS/ABS PC-5 Ice Class •  Ice wedge and reamers •  24” frames and significant shell plating •  Z-drive propulsion for maneuverability •  Double bottom

Bow form and detail of the ice wedge showing the bow thruster.

Detail of the ice reamer

Stern view with tractor Z-drive units and ice stops

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Blast and paint building

Where the modules are put together to make the ship

Where our shipyard office trailer is Shipyard engineering and management offices

Shipyard shipping/receiving and warehouse

Where steel is cut

MARINETTE MARINE CORPORATION SHIPYARD MARINETTE, WISCONSIN

Marinette

Current Construction Status

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• MMC’s Weight Estimate delivered Sept 2010 - MMC estimate ~ 300LT greater than Contract Estimate - Weight+VCG too high – the ship “doesn’t work”

• How did this happen? - Inaccurate weights from vendors (30-50% of the problem) - Major equipment (engines, cranes, …) - Margins (20-30%) - Steel millage, design/construction, … - Others – errors, omissions, misc.

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PASS

FAIL

Vertical Center of Gravity

Naval Architecture From a Technician’s Perspective

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• Several options evaluated combining various lengths with weight savings

• Decided on: - Increase length 6 feet in parallel midbody = 260 ft ship - Change from Steel to Aluminum structure above 02 deck - Eliminate elevator service above 01 deck - Shorten/rearrange Pilothouse - Other weight savings - light-weight joinery, steel reductions, electric deck heat, …

• The ship “works” - VCG is below the line, including full icing and science loads - Healthy VCG and weight margins at End-of-Life

• Will involve some delay in delivery – details are in development

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Design Verification and Transfer Wrapping Up Start Fabrication ? December 2010 Keel Laying February 2011 Z-drives Delivered to Shipyard December 2011 Launch April 2012 Builder’s Trials October 2012 Acceptance Trials November 2012 Delivery January 2013 Post Delivery Dockside/Training February/March 2013 Transit and Science Trials April to June 2013 Inport Seward July 2013 Ice Trials August to September 2013 Inport and Dry-dock September 2013 NSF Inspection October 2013

http://mather.sfos.uaf.edu/arrv/