and slightly raking transom. The rudder post is 

 shown in the counter, just inboard of the transom, 

 but this may be an error. The entrance is quite 

 long and sharp, the run is rather full but quite long. 

 The midsection shows a slightly rising floor, a low 

 and hard bilge, and an upright topside. 



Model is mounted with straight stem, keel, post, 

 propeller and rudder. 



The model is for a steam, single-screw launch 

 measuring 33 feet 6 inches moulded length at gunwale, 

 7 feet 8 inches moulded Ijeam, and 3 feet Iji inches 

 moulded depth. Scale of model is 1 inch to the foot. 



Given by Dennison J. Lawler, shipbuilder, Chelsea, 

 Massachusetts. 



EUROPEAN STEAM LAUNCH, 1875 

 Rigged Model, usnm 311396 



Tri 



■10 



The steam launch Trio is of the type once built in 

 Northern Europe for timber inspection. The model 

 was built by a German engineer and is of a launch 

 of 1875. 



The model represents a launch having a fine en- 

 trance and run, a straight keel with some drag, 

 curved and rather upright stem, vertical post, single 

 screw, round fantail counter with knuckle at deck 

 level, and moderate sheer. The midsection is formed 

 with much rise in the straight floor, a rather slack 

 round bilge, and an upright topside. The propeller 

 is of large diameter by modern standards, and has 

 its shaft low on the sternpost, so that the propeller 

 extends well below the keel and is therefore protected 

 by the skeg bar that extends below the deepest part 

 of the keel itself. 



The vertical boiler is fitted with a high stack having 

 a copper top. The steering-wheel is abaft the boiler, 

 which is just forward of midlength. Forward of the 

 boiler is a cockpit with side seats having paneled 

 backs. Abaft the steersman's position is another seat- 

 ing space, in which are seats with plain staved backs. 

 The engine and boiler were close together and were 

 operated by the helmsman and a fireman. There 

 were short decks at bow and stern and narrow wash- 

 boards along the sides. 



The model (its scale is unknown) measures 40 

 inches overall and appears to represent a lavmch 

 between 42 and 50 feet length. 



Loaned by Walter A. Thompson, Baltimore, Mary- 

 land. 



STEAM LAUNCH, 1883 



Builder's Half-Model, usnm 160131 



This half-model of an unidentified steam launch 

 is in the Watercraft Collection without detailed in- 

 formation. The half-model represents a .swift steam- 

 launch hull having slight sheer, straight keel with 

 some drag, upright straight stem rabbet with slighdy 

 rounded forefoot, upright post, round fantail counter, 

 a long and sharp convex entrance, and a long and 

 very fine run. The midsection shows a straight rising 

 floor, a rather high and hard bilge, and a slightly 

 flaring topside. 



The lift spacing suggests that the model is on a scale 

 of 1 inch to the foot, at which this model would be for 

 a launch of 29 feet 6 inches moulded length at gun- 

 wale, 5 feet moulded beam, 2 feet 9 inches moulded 

 depth, and about 2 feet 6 inches draft. 



Gift of U. S. Fish Commission, 1883. 



STEAM LAUNCH, about 1880-85 

 Builder's Half-Model, usnm 160130 



The half-model is of a swift, low-powered steam- 

 launch hull of about 1880-85, having graceful and 

 moderate sheer, a slightly rockered keel and keel 

 rabbet, a much rounded forefoot with nearly straight 

 and upright stem rabbet above, a rounded and raking 

 sternpost rabbet with the post itself raking, and a 

 round fantail stern of moderate overhang. The 

 entrance is long, sharp, and quite hollow in the 

 vicinity of the forefoot, and the run is easy and rather 

 long. The midsection is formed with much rise in 

 the straight floor, a high and easy bilge, and a nearly 

 upright topside. This is a single-screw boat; the 

 boiler and engine were slightly abaft midlength and 

 the launch was probably half-decked, with a large 

 oval cockpit. 



Model is mounted with straight stem, keel, scmi- 

 skeg post, and rudder. 



The scale of the half-model appears to be '2 inch to 

 the foot, at which the launch woidd have been 36 

 feet moulded length at gunwale, 9 feet 6 inches 

 moulded beam, and 5 feet \Yi inch moulded depth. 



Supposed to be part of a builder's proposal to some 

 department of the government, but no evidence 

 exists to show that a launch was built on the model. 



The donor is unknown, proljalily it was the LT.S. 

 Fish Commission. 



155 



