I read the article. I cannot understand why they did not stop the vessel when it was so obvious that going astern was not the thing to do. The only thing that comes to mind is that it was somehow impossible to do so from the wheelhouse.
Norm S/V Bandersnatch Lying Julington Creek 30 07.695N 081 38.484W > [Original Message] > From: Arild Jensen <[EMAIL PROTECTED]> > To: <[email protected]> > Date: 7/24/2008 9:18:50 PM > Subject: [Liveaboard] FAIL SAFE or FAIL in MODE > > Lew Hodgett wrote: > > If you loose power, the only safe way is to reset every thing to the off > > position and start over. > REPLY > I just saw this item after posting my other comments about fail safe > modes. > __________________________________________________ > > A very interesting piece in today's Seattle Times: > > http://tinyurl.com/6kjubk > > Apparently, when the ship lost electrical power, its prop went into > reverse, causing it to take water over the stern and vastly > complicating the abandon ship procedures. > _________________________________________________ > > Some but not all propellor positioning systems start from one end of a rack position as full reverse, then half way is neutral and the full extension is forward. > The accident description in the report sounds as if the rack positioning gear went to full OFF when the power failed. > It would have been better if that propeller positioning device had "failed in mode" and left the prop blades in whatever position they were in at the time of power failure. > Curiously enough Lloyds Standards require dual redundant and continuously powered busses feeding such things as steering and propellor positioning gear. ABS does not stipulate redundancy in exactly the same way. Hmmmm! Time for a standard rewrite? > > regards > Arild > > > > > > _______________________________________________ > Liveaboard mailing list > [email protected] > To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard > To subscribe send an email to [EMAIL PROTECTED] > > To unsubscribe send an email to [EMAIL PROTECTED] > The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ > > To search the archives http://www.mail-archive.com/[email protected] > > The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard To subscribe send an email to [EMAIL PROTECTED] To unsubscribe send an email to [EMAIL PROTECTED] The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
