Originally Posted by jackdale
The plug is the same material and diameter as the knotmeter. It is held in place by the same threads as the knotmeter. I pull knotmeters regularly to show my students how it is done.
Check the video I posted for other techniques.
Interestingly enough on another thread, this interview with the skipper was posted in March which outlined where almost this exact situation happened during last year's NARC in Swan 48.
NARC Rally Nightmare 2011, Part 1 - An interview with captain AJ Smith from Swan 48 Bella Luna - YouTube
Discussion on thru hull at about 7:15 of video.
They lost the engine and all electronics as a result.
Lots of other good stuff in the interview on their storm management and decisions.