Design and Preparations
With the formation of a Department of the Navy still several years away, responsibility for design and construction fell to the Department of War, headed by Secretary Henry Knox. As early as 1790 Knox had consulted various authorities regarding ship design. Discussions of the designs were carried out in person at meetings in Philadelphia. Little is known about these discussions due to a lack of written correspondence, making determination of the actual designers involved difficult to assemble. Secretary Knox reached out to ship architects and builders in Philadelphia, which was the largest seaport in North America at the time and possibly the largest freshwater port in the world. This meant that many discussions of ship design took place in Knox's office, resulting in few if any records of these discussions being available to historians. Joshua Humphreys is generally credited as the designer of the six frigates, but Revolutionary War ship captains John Foster Williams and John Barry and shipbuilders Josiah Fox and James Hackett also were consulted.
The final design plans submitted to President Washington for approval called for building new frigates rather than purchasing merchant ships and converting them into warships, an option under the Naval Act. The design was unusual for the time, being long on keel and narrow of beam (width); mounting very heavy guns; incorporating a diagonal scantling (rib) scheme aimed at limiting hogging; while giving the ships extremely heavy planking. This gave the hull greater strength than the hulls of other navies' frigates. The designers realized that the fledgling United States could not match the European states in the number of ships afloat. Therefore the new frigates had the ability to overpower other frigates, but were capable of a speed to escape from a ship of the line. Knox advised President Washington that the cost of new construction would likely exceed the appropriations of the Naval Act. Despite this, Washington accepted and approved the plans the same day they were submitted, 15 April 1794.
Joshua Humphreys was appointed Master Constructor of the ships. An experienced draftsman, Josiah Fox, was hired into the War Department to put plans to paper. However, Fox disagreed with the large dimensions of the design and, according to Humphreys, attempted to downsize the measurements while producing his drafts. This incensed Humphreys enough that Fox was soon assigned to the mold loft with William Doughty.
After or simultaneously with the creation of the drawings, a builder's half model was assembled from which measurements were taken to create molds of the timbers. In a process known as "molding", the dimensions of the framing pieces were chalked onto the floor of a mold loft where a template was formed using strips of light wood. Once the molds were transported to the timber crews, the templates were used to select the part of a tree that closely matched the template. From there the timber was felled and roughed out close to the required dimensions, then numbered for identification and loaded onto a ship for transport. An additional set of more detailed molds was required for each frigate for the construction crews to follow.
Read more about this topic: Original Six Frigates Of The United States Navy
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“At the ramparts on the cliff near the old Parliament House I counted twenty-four thirty-two-pounders in a row, pointed over the harbor, with their balls piled pyramid-wise between them,—there are said to be in all about one hundred and eighty guns mounted at Quebec,—all which were faithfully kept dusted by officials, in accordance with the motto, “In time of peace prepare for war”; but I saw no preparations for peace: she was plainly an uninvited guest.”
—Henry David Thoreau (1817–1862)