Looking Back: Disaster in Anacortes
LOOKING BACK AT THIS PIECE I WROTE FOR PASSAGEMAKER MAGAZINE IN 2014, IT SEEMS THAT THE DARK CLOUD SEEN IN THIS PHOTO PRESAGED THE LAUNCH TO FOLLOW...
An in-depth look at the capsizing of the $10-million expedition yacht, Baden, in Anacortes, Washington, USA.
In this web extra, PassageMaker correspondent, Phil Friedman, explains more about the builder, about how stability works at sea, and about what Northern Marine had to say about the unfortunate incident. (July 2014)
To see the video and read more, click here.
About the author, Phil Friedman: With some 30 years background in the marine industry, he's worn different hats — as a yacht designer, boat builder, marine operations and business manager, marine industry consultant, marine marketing and communications specialist, yachting magazine writer and editor, yacht surveyor, and marine industry educator. I'm also trained and experienced in interest-based negotiation and mediation. In a previous life, Phil was formally trained as an academic philosopher and taught logic and philosophy at university.
Phil's latest publishing-related project is a team effort to develop and launch a new collaborative professional and small-business networking platform, OpenWorldUSA.org, which seeks to shift the paradigm by offering 100% organic networking and content distribution, as well as open and transparent platform management. You are invited to check it out.
100% Organically-determined distribution to and between users / members
Completely free of arbitrary algorithmic manipulation
Fully transparent platform management, clear of undisclosed agendas
No monetization of user/member data
No interference with user/member settings or optional elections
Open to sharing of relevant content from other networks and platforms
For more information, see: OpenWorldUSA.org
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Comments
Lada 🏡 Prkic
6 years ago #7
Phil Friedman
6 years ago #6
Thank you for the kind words, Lada \ud83c\udfe1 Prkic. I can't tell you how pleased I am that a structural engineer would find my explanations and descriptions interesting -- especially since the most I can claim to be is a "cookbook" engineer. You might be interested to know that 1-1/2 years after I published this group of articles which PassageMaker had commissioned, the U.S. National Transportation Safety Board released its own report ... which said essentially the same things and drew the same conclusions as I did. Once in a while, one does some work of which one is somewhat proud, and this was one of those times for me. Cheers!
Lada 🏡 Prkic
6 years ago #5
Phil Friedman
6 years ago #4
Ian Weinberg, what can I say. The magnitude of stability -- that is, the total force required to heel these vessels significantly is truly enormous due to their weight. Stability is the product of weight acting against buoyant forces through the distance between heeled transverse CG and heeled CB. See my article. However, by yacht standards, or even by standards applying to commercial carriers, the "range" of stability -- that is the range of heel from upright to that point of heel when the vessel capsizes -- is disturbingly small in these giant vessels... on the order of less than three (3) degrees. Which means that if a perfect set of circumstances should accrue, in which the vessel's roll period synchronizes with the period of large seas, good luck and good bye. I and a number of naval architects with open water passagemaking experience, of my acquaintance, refuse to venture out in ocean liners of any sort and would fight tooth and nail not to be dragged aboard one of the behemoths you mention. FWIW, of course. Cheers!
Phil Friedman
6 years ago #3
Yes, Randall Burns, the NTSB issued a report about 1-1/2 years later essentially confirming my diagnosis as detailed and postulated in several articles that I wrote for PassageMaker at the time. The yacht was under-ballasted for the launch conditions., and insufficiently supported on the trailer during the critical period when she starts to float off but is still insufficiently immersed to pick up the stability contributed by the hydrostatic buoyancy of her hull when sitting at her designed lines. Cheers!
Ian Weinberg
6 years ago #2
Probably not a great idea to have packed all the luggage on the port side! Thanks for the in-depth review Phil Friedman - boating and boat building is a fascinating world. I'm interested in your take on the current generation of mega passenger liners, specifically as regards stability in the context of CofG and CofB?
Randall Burns
6 years ago #1