Fairey Mary

Needless to say post the photo.

My guess is that the keel being down increases then leverage of the weight.

Has anybody calculated drag forces on a standard Atalanta?  I believe it can be done by a towing one using a newton meter, or hanging scales.  If we graph this against speed we would to see an initial upwards curve showing the wave forming drag that defines the hull speed then a kind of levelling off as the planing comes in.

Be a good article…