Howard Irving Chapelle

“ It was contemplated that this vessel, besides carrying her proposed armament on deck, should also be furnished with submarine guns, two suspended from each bow, so as to discharge a hundred pound ball into an enemy’s ship at ten or twelve feet below her water-line. In addition to this, her machinery was calculated for the addition of an engine which would discharge an immense column of water upon the decks, and through the port-holes of an enemy, making her the most formidable engine for warfare that human ingenuity has contrived. ”

“ In reconstructing, to place the wheel shaft below these members would not only bring the engine nearly level—it is described and shown inclined by Marestier—but also would immerse the paddle blades too deeply for the draft and depth of the hull. To place the shaft below or through the lowest clamp member would require the shaft centerline to be at least 3 feet below the upper deck, and this would contradict Marestier. These questions indicate the importance of a scaled drawing when deciding arrangement in the reconstruction of a ship under the circumstances existing in the Savannah. ”

“ In spite of Barnegat Bay's extensive oyster beds and its proximity to New Haven, the sharpie never became popular in that region, where a small sailing scow known as the "garvey" was already in favor. The garvey was punt-shaped, with its bow narrower than the stern; it had a sledlike profile with moderately flaring sides and a half-deck; and it was rigged with two spritsails, each with a moderate peak to the head and the usual diagonal sprit. [9] The garvey was as fast and as well suited to oyster tonging as the sharpie, if not so handsome ”

“ All requirements that have been given can be approximated for space necessary in the hull. It is established that the ship carried about 75 tons of coal and 25 cords of wood. The coal would take up from about 1,700 to 1,850 cubic feet of space, and because of its weight it would have to be bunkered alongside the boilers in the lower hold, where there would be ample room, in the reconstruction, for two bunkers, each in excess of 30 square feet in cross section and about 28 feet in length for a single boiler; one third more bunker space, in length, would be required for double boilers. ”

“ The sharpie's rapid spread in use can be accounted for by its low cost, light draft, speed, handiness under sail, graceful appearance, and rather astonishing seaworthiness. Since oyster tonging was never carried on in heavy weather, it was by chance rather than intent that the seaworthiness of this New Haven tonging boat was discovered. There is a case on record in which a tonging sharpie rescued the crew of a coasting schooner at Branford, Connecticut, during a severe gale, after other boats had proved unable to approach the wreck. ”

“ Marestier considered the powers of the battery to have been overrated due to fanciful accounts of some laymen writers. He was aware of the shortcomings of the double hull in a steam vessel at the then-possible speeds, but he apparently thought two engines, one in each hull and each with its boilers would be better than Fulton’s arrangement of boilers in one hull and engine in the other. He noted that the paddle wheel turned 16-18 rpm and that steam pressure sustained a column of mercury 25 to 35 centimeters. ”

“ Since the Savannah is known to have sailed quite fast for her length, her lines had to equal those of the Ohio; however, her smaller size and other factors indicated a somewhat different hull-form, with harder turn of the bilge and a little less deadrise. Due to the position of the machinery, the effect of its weight and that of the necessary fuel had to be considered. The midsection, or cross section of greatest area, would have to have been only a little abaft the paddle wheel axle to allow proper trim with a minimum of ballast. ”

“ The refinements that distinguished the sharpie from other flat-bottomed skiffs first appeared in some boats that were built at New Haven, Connecticut, in the late 1840's. These craft were built to be used in the then-important New Haven oyster fishery that was carried on, for the most part, by tonging in shallow water.
The claims for the "invention" of a boat type are usually without the support of contemporary testimony. In the case of the New Haven sharpie two claims were made, both of which appeared in the sporting magazine Forest and Stream. ”

“ The boilers were in the hold, but Marestier gives no dimensions. However, he comments that, in American steamers, the space for steam in the boilers varied from 6 to 12 times the capacity of the cylinder. He gives the Savannah's boiler pressure as 2 to 5 pounds per square inch and the maximum revolution of the wheels as 16 revolutions per minute. The boilers could burn coal or wood. Judging by Marestier's sketch of the ship, the stack was at the firebox end; the boiler or boilers were underneath the engine. ”

“ The boatmen at New Haven were convinced that a narrow sharpie was faster than a wide one, and some preferred strongly flaring sides, though others thought the upright-sided sharpie was faster. These boatmen also believed that the shape of the bottom camber fore and aft was important, that the heel of the stem should not be immersed, and that the bottom should run aft in a straight line to about the fore end of the centerboard case and then fair in a long sweep into the run, which straightened out before it passed the after end of the waterline. ”

“ In all such occupations, the men, by proper relays, perform their services perfectly well.
The Government, however, will understand that the hold of the present vessel could be rendered cooler by other apertures for the admission of air, and that on building another steam frigate, the comfort of the firemen might be provided for, as in the ordinary steamboats.
The Commissioners congratulate the Government and the nation on the event of this noble project. Honorable alike, to its author and its patrons, it constitutes an era in warfare and the arts. ”

“ It is probable that the fore and after ends of the frame were supported by stanchions stepped on the lower deck at the fore end and in the hold at the after end. The crosshead was of iron and probably had shoes at the ends to work in the tracks or channels in the frame. To help steady the crosshead, these shoes probably were a foot or more long, for the loading of the crosshead is spread out. The pitman to the paddle wheel shaft is to starboard of the centerline of the engine; the steam cylinder piston is slightly off center of the frame and crosshead ”

“ The sharpie schooner seems to have been more popular on the Chesapeake Bay than on Long Island Sound. The rig alone appealed to Bay sailors, who were experienced with schooners. Of all the flat-bottomed skiffs employed on the Bay, only the schooner can be said to have retained much of the appearance of the Connecticut sharpies. Bay sharpie schooners often were fitted with wells and used as terrapin smacks (fig. 7) . As a schooner, the sharpie was relatively small, usually being about 30 to 38 feet over-all. ”

“ The resistance factors in the design are of relatively small importance, for the speed possible under steam in this period was very low. However, the plans show an apparently efficient hull form for the power available, aside from the drag of the beams across the race in the vicinity of the keel. The displacement was adequate. The height of the gun-deck above the water at the race made the Battery unsuitable for rough-water operation, but there is no evidence that Fulton or the sponsors of the vessel considered the Battery as a coastwise or seagoing steamer. ”

“ However, fuel space is affected and, with double boilers, the cross-sections of the bunkers are reduced to about 20 square feet each; therefore, the bunkers would have to become much longer. It may be said that the boiler capacities in relation to dimensions of the steam cylinder as indicated in the Russian description far exceed those given by Marestier. As a practical matter of ship design, it seems that the single boiler would have been a more logical fitting than double boilers. The boilers were apparently of copper, and expensive. ”

“ The New Haven sharpie proved that a long, narrow hull is most efficient in a flat-bottomed boat, but no utilization has yet been made of its design as the basis for the design of a modern fishing launch. ”

“ In 1814 he had another vessel of this type built, the Nassau. It was, therefore, logical that he should apply this design to the Steam Battery. The double-hull design had worked well in these ferries, and the design would give protection from shot to the paddle wheel. The Battery would have the ability to run forward or astern so as not to be exposed to a raking fire from the enemy while maneuvering in action. The application of this “ferryboat” principle to the Battery reduced the need for extreme maneuverability, the catamaran’s weakest point, even at low speed. ”

“ A small scow might have a one-mast or two-mast spritsail rig, or might be gaff rigged; a large scow might be sloop rigged or schooner rigged. Flatiron skiffs were sharp-bowed, usually with square, raked transom stern, and their rigs varied according to their size and to suit the occupation in which they were employed. Many were sloop rigged with gaff mainsails; others were two-mast, two-sail boats, usually with leg-of-mutton sails, although occasionally some other kind of sail was used. If a skiff had a two-mast rig, it was commonly called a "sharpie" ”

“ In the last quarter of the 18th century and later, the Danes had built sail-propelled floating batteries or blockships, which were employed in the defense of Copenhagen. The British built at least one sail-propelled battery, the Spanker, in 1794. This was a scow of very angular form with overhanging gun-deck, bomb-ketch-rigged, and about 120 feet overall 42-foot 4 inches moulded beam and 8-foot depth of hold. She is said to have been a failure due to her unseaworthy proportions and form; the overhanging gun deck and sides were objected to in particular. ”

“ Windage of the topside structures necessary on sharpie yachts also affected speed, particularly in sailing to windward. Hence, there was an immediate trend toward the addition of deadrise in the bottom of the yachts, a feature that sufficiently increased displacement and draft so that the superstructure and rig could be better carried. Because of its large cabin, the sharpie yacht when under sail was generally less workable than the fishing sharpie. ”

“ To supervise the start of construction, the Coast Defense Society appointed a committee consisting of Dearborn, Wolcott, Morris, Mitchill, and Rutgers, with Fulton as engineer, and a model and drawing of the proposed vessel was submitted to the Patent Office. The Secretary of the Navy, although supporting the project, delayed action until he had weighed the importance of the batteries in relation to other war needs, for at this time the naval shipbuilding program on the Great Lakes was considered of prime importance. ”

“ The use of the principles of flatiron skiff design in sharp-stern, or "double-ended," boats has been common. On the Chesapeake Bay a number of small, double-ended sailing skiffs, usually fitted with a centerboard and a single leg-of-mutton sail, were in use in the 1880's. It is doubtful, however, that these skiffs had any real relationship to the New Haven sharpie. ”

“ It is improbable that the engine and skylight hatches were used for ladderways, passing scuttles, or companionways.
The boilers are shown in the inboard profile about as described and drawn by Marestier but with two stacks on each boiler, one to each flue; Marestier’s sketch in his report on American steamships shows the flues of each boiler trunked into a single stack. The battery had two boilers and the stacks are at the boilers’ fire-door end. The steam lines came off the crown of the boilers and probably passed through the ends of the wheelbox to the engine ”

“ Montgéry stated also that only the lower or gun deck was to be armed. No bulwarks were on the spar deck, only iron stanchions to which were fastened a breastwork of wet cotton bales when the Steam Battery was in action.
The Battery was designed to carry 30 guns (32-pdr.) , with 3 guns in each end and 12 on each side, but no guns in the wake of paddle wheel and machinery. Hatches to give air to the stokehold were located amidships. The Battery was to have been supplemented at the ends of each hull by a Columbiad “submarine gun” (100-pdr.) , Fulton’s invention, but these were not fitted. ”

“ The story of the New Haven sharpie presents an interesting case in the history of the development of small commercial boats in America. As has been shown, the New Haven sharpie took only about 40 years to reach a very efficient stage of development as a fishing sailboat. It was economical to build, well suited to its work, a fast sailer, and attractive in appearance. ”

“ A large sharpie was reported to have run 11 nautical miles in 34 minutes, and a big sharpie schooner is said to have averaged 16 knots in 3 consecutive hours of sailing. Tonging sharpies with racing rigs were said to have sailed in smooth water at speeds of 15 and 16 knots. Although such reports may be exaggerations, there is no doubt that sharpies of the New Haven type were among the fastest of American sailing fishing boats. ”

“ It is highly important that a portion of seamen and marines should be versed in the order and economy of the steam frigate. They will augment, diffuse, and perpetuate knowledge. When, in process of time, another war shall call for more structures of this kind, men, regularly trained to her tactics, may be dispatched to the several stations where they may be wanted. ”