A thousand words...some misleading

benjenbav

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At a glance, this looks like a typical day out with a bunch of yotties: fail to futtock your mainsplice just one time and the lime in your Tanqueray is most definitely gonna be sliced not segmented.

However, it's actually one in an interesting series of pix from some tests done by PBO; full article here: http://www.pbo.co.uk/seamanship/is-it-safe-to-use-a-tether-25125?ybw

This pic is actually one of the good outcomes...even if no-one onboard seems to be looking at the casualty. :D
 
That seems to relate to an article they did which was predicated on a startling ignorance of statistics. They got all worked up over the fact that a higher proportion of who go overboard with tethers drown than of people who are untethered ... but completely ignored the question of how many people that actually is.

I'll take a 50% increase on drowning if I go overboard if it comes with a 90% reduction in the chance of me going overboard in the first place.

Bayesian probability, PBO dudes, bayesian probability.
 
Did you read the article?

What we learned

The MAIB Lion report recommends the use of a short tether to ensure you don’t go overboard in the first place. If you are unlucky enough to go over, we found that a short tether will keep you out of the water on the windward side, but still places you underwater on the leeward side.
It would therefore seem sensible to always clip on to the windward jackstay with a short tether, to give yourself the best possible chance of remaining on board if you fall to leeward, or clear of the water if you fall to windward, so that the crew can attempt to recover you.


Read more at http://www.pbo.co.uk/seamanship/is-it-safe-to-use-a-tether-25125#ibOfsrKhrVzek3CO.99
 
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