444 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [8] 



DETAILS OF CONSTRUCTION. 



HULL. 



Keel. — The keel of the Grampus is made of white oak ; the main sec- 

 tion running well forward and scarfing under the forward deadwood. 

 It has only one scarf. It sides 15 inches in center and tapers to 9 inches 

 at the deadwoods. The keel is molded 15 inches outside of garboard, 

 and is curved to fit the shape of the hull. Bolted to the keel and form- 

 ing part of it, is a shoe of white oak, molded G inches through the 

 greater part of its length, tapering to 3 iuches at its ends. The scarf of 

 the keel and the shoe are bolted with 1-inch yellow-metal. 



Stem. — The stem is made of white oak. It sides 12 inches at head, 9 

 inches at water-line, and also at heel where it joins dead-wood. It is 

 bolted with 1-inch yellow-metal below water-line, and with galvanized 

 iron above. 



Stern-post. — The stern-post is of white oak, its lower end being a knee 

 resting on after end of the keel, and firmly bolted to the latter with 

 1-inch yellow-metal bolts. 



The stern-post, at the head above the rabbet, sides 16 inches ; at the 

 outer rabbet it is 12 inches, tapering to 9 inches at the heel. The after 

 edge of the stern-post tapers from 12 inches at the port, where it is hol- 

 lowed out to receive a 10-inch rudder-head, so that the hollow at the 

 lower end will receive a 5-inch rudder-heel. It has a backing of white 

 pine in the port, and the port is lined with heavy sheet lead. 



Forward deadwood. — The apron piece of deadwood is white oak ; it 

 sides 12 inches at gunwale sheer and 9 inches at water-line, to conform 

 to the dimensions of the stem, to which it is bolted with 1 inch bolts, 

 yellow-metal being used below water-line and galvanized iron above. 



The forward deadwood which comes over the scarf of the keel and 

 stem is white oak, and sides 9 inches ; the filling and lacing pieces of 

 deadwood are hard pine, and are bolted with 1-inch galvanized iron. 



After deadwood. — The lower piece of the after deadwood is oak, bolted 

 with 1-inch yellow-metal. The upper or lacing pieces of deadwood are 

 hard pine; siding 8 inches and bolted with 1-inch and LJ-inch galvan- 

 ized iron, except where the bolts go into the stern-post, in which case 

 yellow-metal is used. 



Frames. — The frames are of white oak, grown to the mold, and 

 spaced 22 inches from center to center. They are double to the gun- 

 wale, and arranged in the usual manner for the floors to break joints 

 with the futtocks and so on, the frames being bolted together with 

 |-inch galvanized iron. The floor timbers side 8 inches, with the 

 upper ends snapped to 6 inches ; the futtocks side 6 inches and the top 

 timbers or stanchions 5 inches. One of the latter is bolted to each frame, 

 and has a quarter- round worked on its inner corners above deck. The 

 frames mold 7£ inches at side of keel, 6 inches at second futtock head, 

 and 5 inches at gunwale. In the throats of the flattest frames the floor 

 timbers are 9 inches deep, but forward and aft the depth increases with 

 the change in the shape. 



