It will roll in a beam swell or wash. With the keel up there is little
roll reistance and a sailboat relies on its sail to maintain roll
resistance as well.


DSK wrote:
dzine wrote:

Is there any reason e.g. hull shape, not to convert an old rotten
decked yacht with retractable single keel to a river boat, no sails but
electric motor ?


The hull shape should be fine, might even be graceful &
pretty. Sailboat hulls are designed for low drag and good
stability, you want that. They are also designed to steer
when heeled and you probably don't need that, but it doesn't
hurt.

The only reason I can think of not to is that it may be
rotten in some places where you don't expect. If you put
your foot thru it in the middle of the river, the electric
stuff will get wet and that's bad.

Fresh BReezes- Doug King