status report pwsrcac’s participation in safetug i

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9/17/09 Board Meeting

SAFETUG Data Analysis�Project Description and �

Status Report

OSPR, POVTS, TOEM Committees�RCAC Staff�

Project Team�Tom Kuckertz and Joel Kennedy


Data Analysis Project

•  PWSRCAC’s participation in SAFETUG I •  SAFETUG I data •  Project Team •  Initial examination of reports (First

Impressions) •  Near term planning •  Questions and Answers


PWSRCAC’s Participation in SAFETUG Came Towards End of Phase I

•  Driven by board positions: –  All laden tankers to be escorted by 2 tugs (PRT and ETT) –  Tugs at Hinchinbrook to be highly maneuverable, with high bollard pull,

and open ocean “salvage” capabilities

•  POVTS and staff started interaction with MARIN (Maritime Institute of the Netherlands)

•  SAFETUG is a project with 2 phases –  Consortium of shipping industry leaders and PWSRCAC –  $100,000 participation fee (Phase I and Phase II)

•  Project team formed (POVTS action)

Company CompanyABS RobertAllanLtd.Bhara2ShipyardLtd. RollsRoyceBPShipping Salvage&MarineOpera2ons(IPT)/MODUKBureauVeritas ShellGlobalSolu2onsInterna2onalChevronTexaco SingleBuoyMooringsInc.ConocoPhillips SIPORTXXIDamenShipyardsGorinchem SMITExxonMobil/GlostenAssociates,Inc. SVITZERGroupGazdeFrance TidewaterMarineLLCLamnalcoGroup TotalLloydsRegisterEMEA TrelleborgMarineSystemsMarkeyMachineryCompany,Inc. VoithTurboB.V.MARIN VuykEngineeringRoUerdamNesteShippingOy WärtsiläPropulsionNetherlandsB.V.Petrobras WorldWiseMarinePrinceWilliamSoundRCAC

Recent List of SAFETUG Participants


A Project Team Was Formed •  Responsible Committees: OSPR , POVTS, SAC, TOEM�

•  Staff: Joel Kennedy, Tom Kuckertz, Donna Schantz, Linda Swiss �

•  PWSRCAC Council Members: John French, Steve Lewis, Walt Parker, Stan Stephens �

•  Committee members :Bob Jaynes, Bob Benda, Jerry Brookman, Gordon Scott�

•  Outside expertise (SeaRiver): Tom Blanchard

Project Team Mission

By means of an in-depth review and analysis of the SAFETUG data, PWSRCAC seeks to achieve a better understanding the various options and tradeoffs associated with the use of enhanced tractor tugs, prevention response tugs, and ocean going salvage tugs for prevention of groundings in Prince William Sound and beyond Hinchinbrook Entrance in the Gulf of Alaska.


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Project Team Operations

•  Members chosen for expertise in areas of interest to project

•  Will do (initial?) data analysis work •  Will identify work to be done by contractors •  Outside technical expertise on team (new) •  Team building opportunities

– Escort observation – Exercise and drill observation

Project Team Activities

•  Observation of exercises in mid PWS •  Identification of data to be analyzed •  Project Team website •  Kickoff meeting – September 10, 2009


Identification of Data to be Analyzed •  Summary PowerPoint Presentation (70 Mbyte) •  15 Final Reports (~2000 pages)

–  VWT and ASD escorting tests –  VWT ultimate stability tests –  Current operations and criteria –  Offshore berthing –  Offshore berthing operability methodology –  Model tests with VWT –  ASD offshore berthing model tests –  Tests on ultimate stability of ASD


Piled Higher and Deeper?


First Impressions •  Most of the testing takes place in the

MARIN test tank with scale models and scaled sea conditions

•  Some testing takes place in the North Sea •  Controllable sea energy spectra (i.e. wave

height and period) used in model testing with JONSWAP (Joint North Sea Wave Action Project) statistics

•  “Mother lode” of tug test data 9/17/09 Board Meeting

Behaviour of 2 tugs is investigated in MARIN Tank:�

ASD – Azimuthing Stern Drive�VWT – Voith Water Tractor

Not optimised ASD tug Moderately optimised VWT tug

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Tan’erliq and Nanuq have the Voith drive


Attentive, Aware and Alert have the Z-drive


Propulsion systems are quite large


JONSWAP Wave

statistics:�with�

6 test points

In the North Sea, the probability on a wave with wave height between 1-2 meter and a period between 6-7 seconds is 100 ‰

For VWT at 50 tow line angle: no decrease in average tow line force

180 deg

45 deg

90 deg

135 deg

0 deg

225 deg

270 deg

315 deg

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VWT at 50° tow line angle

Calm water

1 m wave height

2.3 m wave height

Sample Graphical Data Representation Near-Term Planning •  SAFETUG General Meeting – Oct 1-2, 2009 •  Agenda

–  Discussion of agenda (Project Overview) –  Winches –  Wrap up of modeling and integration in BERTHSIM –  Fenders –  Berthing (wake-hull interaction test program extension) –  Tug design –  Model test program & design variations –  Model test results –  Trend line report (format and progress) –  Finances/ Membership & partnership –  Criteria test program/ Training manual progress –  Safetug Wiki –  Future work/ Planning –  AOB/ next meeting (ITS, Vancouver) –  Class issues –  Visit to SMIT fleet

•  Dedicated time for PWSRCAC with PI – Johan de Jong 9/17/09 Board Meeting

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Data Analysis Project

•  PWSRCAC’s participation in SAFETUG I •  SAFETUG I data •  Project Team •  Initial examination of reports (First

Impressions) •  Near term planning •  Questions and Answers


End of Presentation

status report pwsrcac’s participation in safetug i

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