Ed,
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<br>What do I think? Firstly that you have too much time on your hands! :-)
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<br>Seriously, I think that it would all be a fair bit of hassle, maintainence and weight for potentially little gain... but some clever thinking from you nonetheless! Better get a patent on that post!
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<br>As you say, there is no such thing as a free lunch, so wouldn't the board in creating the lift required to prevent leeway in turn create drag roughly equal to the drag 'removed' from the hull?
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<br>Is there another benefit that I am not seeing? I'm assuming that the 505's wouldn't bother if it were not worthwhile? Perhaps the lift to windward improves VMG to the extent that the drag penalty is overcome...
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<br>Gary Eastment
<br>Taipan AUS171<br><br>