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Michel Selig II

The Construction of The Classic Six Metre Model Yacht Michel Selig II

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almost exposing the rudder, to lower the waterline length<br />

which compensated the "d" penalty.<br />

Two key opposing concepts in sailboat design are wetted<br />

surface and hull speed In light winds, one wants a<br />

minimum of wetted surface. For stronger winds, when the<br />

boat reaches full speed, it reaches a limit based on its<br />

waterline length (its hull speed). The longer the waterline<br />

length, the faster the hull speed.<br />

Drewitz designed such a light boat that, if the crew moved<br />

forward, the boat tilted forward and its wetted surface was<br />

reduced and, if it moved aft, the boat tilted aft, extending its<br />

waterline length. It was a remarkable concept for the<br />

period. It is now common practice for certain modern<br />

racing yachts.<br />

Apparently, Collignon rejected the concept after the boat<br />

was built. To make her float "normally, he had 120 kg. of<br />

the forward part of the ballast moved aft in the form of forty<br />

3 kg. lead ingots, thereby also rendering her rating so that<br />

she was no longer a Six.<br />

Photo of <strong>Michel</strong> <strong>Selig</strong> before launching. The caption in<br />

German explains Drewitz's concept of shifting the<br />

crew's weight forward and aft, but the boat had<br />

already been "adjusted" by Collignon to give it a

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