682 Extract from Stalkartfs Naval Architecture. 



my endeavours to be of use to my country crowned 

 with success. 



To describe fully the principles upon which this 

 draught was formed, would be to write a Treatise of 

 Naval Architecture, which is a work I have not leisure 

 at present to undertake ; but I would just observe that 

 my great object was to contrive a vessel, which, pos- 

 sessing all the qualities necessary for a ship of war, 

 should at the same time be able to carry a great quan- 

 tity of sail with little ballast. 



The stiffness of a ship depends upon her form, and 

 the quantity and stowage of her ballast : but that 

 vessel which is stiff from construction is much better 

 adapted for sailing fast than one which, in order to 

 carry the same quantity of canvas, is obliged to be 

 loaded with a much greater weight ; for the resistance 

 is as the quantity of water to be removed, or nearly as 

 the area of a transverse section of the immersed part 

 of the body at the midship bend ; and a body that is 

 broad and shallow is much stiff er than one of the same 

 capacity that is narrow and deep. 



Another advantage attending ships that are stiff 

 from construction is they are much less liable to 

 roll than those which are obliged to carry a great 

 weight of ballast : they are also much better sea- 

 boats, and are less liable to be strained in bad weather. 



Cutters, which are by far the stiffest vessels from 

 construction of any that have yet been built, are re- 

 markably easy in the sea at all times ; and, I believe, 

 are safer than any other class of vessels of the same 

 capacity : they certainly sail faster and work better. 



You will see by the draught that I have totally 

 avoided hollow water-lines, and also that the line of 



