42 BUUL-ETIN 127, UNITED STATES NATIONAL MUSEUM. 



This was a wooden, single-screw steam propeller launch with 

 sharp bow ; only slight rise to floor ; very short turn to bilge ; long, 

 easy run ; nearly plumb square stern ; medium sheer. 



Dimensions of launch. — ^Length over all, 34 feet; beam, 7 feet 

 6 inches; depth, molded, 3 feet 7^ inches. Scale of model, 1 inch 

 equals 1 foot. 



Mr. Lawlor has said that several steam launches were built for 

 the Navy from this design in 1862, under the supervision of Ad- 

 miral Boggs, United States Navy. One of these was the launch used 

 by Gushing. The boat had no special features but was the ordinary 

 naval launch of that period. After being selected for the perilous 

 undertaking, she was fitted with special appliances for operating 

 the torpedo with which she blew up the Alhemarle. This vessel 

 was built on the Roanoke River in Halifax County, Va., and ar- 

 mored with iron. She was 152 feet long between perpendiculars; 

 her extreme width was 45 feet; her depth, 9 feet. When launched 

 she drew 6i feet of water, but after being ironed her draught was 

 about 8 feet. She was armed with two rifled Brooke guns, each 

 working through three portholes as occasion demanded. 

 Gift of D. J. Lawlor. Cat. No. 76,044 U.S.N.M. 



Model of United States Bureau of Fisheries steamer. 

 The iron twin-screw steamer Albatross, designed by Charles W. 

 Copeland and built for the United States Fish Commission in 1882 

 by the Pusey & Jones Co., of Wilmington, Del. 



This vessel, designed and constructed for the purpose of deep-sea 

 exploration, was equipped with all modern appliances used in such 

 M'ork. The hull is formed so as to go astern safely in a seaway 

 while sounding and dredging. The rudder and its attachments 

 are of extra strength, and, in addition to the hand and steam steer- 

 ing gear in the pilot house, there is a powerful screw gear attached 

 directly to the rudder head, a heavy iron tiller on the poop deck 

 for relieving tackles, and the usual rudder chains. The type of 

 machinery and the various appliances were selected with a view 

 to tlie special work for which she is intended. 



An iron, brigantine rigged, twin-screw steamer, with sharp flaring 

 bow; low floor; easy bilge; wall side; moderately long and well- 

 shaped run; overhanging round stern; six transverse iron bulk- 

 heads and six water-tight compartments; poop cabin extending 30 

 feet forward of sternpost, entire width of the vessel; deck house, 

 83 feet in length, 13 feet 6 inches wide, and 7 feet 3 inches high 

 from deck to deck, built of iron from the funnel aft and sheathed 

 with wood inside and out, with iron storm doors; from funnel for- 

 ward it is of wood. Topgallant forecastle 44 feet in length and 

 6 feet 3 inches in height from deck to deck. 



