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I disagree Boas. The question is about whether a breaking, following sea can take out a rudder. It was presented as a possibility in the Rule62 thread, but it's a broader issue that relates to a previous discussion we had in this thread regarding the same thing. So it really belongs here.
BillyR, as for the JSD (Jordan Series Drogue), the previous discussion in this thread was whether it made more general sense to deploy a braking device off the bow or off the stern...with my concern being that with stern to waves (especially with a braking device like the JSD) breaking seas blasting past the rudder with the boat being held in place by the drogue could potentially present some serious forces on the rudder that could cause damage.
It's the same idea as surfing backward on a wave if you're heading into it bow first, and the rudder is damaged from that backward motion.
With a parachute type anchor off the bow, you're putting the logical part of the boat into the oncoming breaking waves, avoiding the backward surfing with the sea anchor (thereby protecting the rudder) and, potentially getting through the storm more quickly.
With a drogue like the JSD, you're essentially doing the opposite of these.
So, if Rule62's rudder was taken out prior to hitting the reef as some suggested, this conversation just got a lot more interesting.
PS - Don't get me wrong, I like the JSD and its concept. And Jordan poo-poos the above scenario. I've just always been a little skeptical.
Last edited by smackdaddy; 12-10-2010 at 08:28 AM.