Boat Yaughts Sailing
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Boat Yaughts Sailing
Drafting between two boats?
Is it possible for two yaughts to 'draft' each other, as in use the forward boat to help the rear boat gain speed/expend less energy?
I'm asking this as the other day I was out sailing in my Snapdragon 27, along with a friend in his boat (a wider, Evasion 32). As we were coming into moor in a fairly calm and sheltered sea, I had the idea of slipping in behind the other boat in order to gain a little bit of ground, as the Evasion was a little faster. After moving in behind, about 3-4 metres, we gained 0.2 knots of speed and managed to keep up with the lead boat.
My first thought was this was like what racing cars do in order to gain speed, using the relatively 'clean' air to put less of a workload on the drafting car. However, on second thought we were both motoring and the propellors would surely generate very turbulent water?
Any ideas or explanations as to what have caused the 0.2 knot speed gain?
Yes drafting works in water just like air. Hydrodynamics the same. Porpoise & dolphins enjoy an easier ride of the bow wave of a vessel. Same deal.
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