MartinRF 53 Posted April 27, 2021 Share Posted April 27, 2021 On smaller cats with accommodation in the hulls the presence of a dagger board case is a serious obstacle. Hence it is angle one way or the other to get it out of the way. This means there is a vertical force component when sailing. The other day I amused myself by making an approximate drawing of my boat and calculating the forces: The green arrangement is what I have on my boat. Ease of handling is an obvious advantage. The numbers show a non-trivial increase in righting moment for the red arrangement and it is for free (I think) -- a compelling argument for the red version. Comments? /Martin My boat: https://www.reflectometrist.eu/ Quote Link to post Share on other sites
Deep Purple 511 Posted April 28, 2021 Share Posted April 28, 2021 Yep - Tennant went for the Green for ease of lifting from the deck. Higher performance boats such as Silveraider had the red setup Quote Link to post Share on other sites
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