The aft cockpit is stationary, while the fore or passenger cockpit can be removed at will.  Both cockpits are the same size, 42 in. wide and 7 ft. long over all.  Each one has a bent rail, 1-1/2 in. by 4 in., grooved 1/2 in. by 7/8 in. before bending.  The flooring is of oak, 1-1/2 in. thick and 4 in. wide, tongue-and grooved.  The forward cockpit is made in halves and hung on the backbone with wrought-iron straps and bolts.  These are shown in Figs. 41, 43 and 44.  Two pieces of oak, 1/2 in, by 4 in. are fastened with screws to the flooring, parallel with the backbone in the forward cockpit.  The runner plank which passes under this cockpit gives it stability.

The spars should be hollow and have the following dimensions:  Mast, 23 ft. 3 in.; heel, 3-3/4 in. ; center, 5-1/4 in.; tip, 4 in. ; boom 23-1/2 ft.; heel, 3-3/4 in. ;center, 4 in.; tip, 2-7/8 in. at ends; gaff, 12-1/2 ft.; center, 3-1/2 in.; ends, 2-1/2 in.; jib-boom, 10-1/2 ft.; 1-3/4 in. at the ends, 2-1/8 in. at the center.  The gaff is furnished with bent jaws of oak, Fig. 17, and the main boom with gooseneck, Fig. 12.

Galvanized cast-steel yacht rigging, 5/16 in. in diameter, is used for the shrouds; jibstay, 3/8 in. in diameter; runner plank guys, 5/16 in. in diameter; bobstay, 3/8 in. in diameter; martingale stay, 1/4 in. in diameter.  The throat,and peak halyards are 3/8 in. in diameter; jib halyards, 1/4 in. in diameter.

The main sheet rigging is 9/16-in.  Russian bolt rope; jibs, 7/16-in. manila bolt rope, 4-strand; jib-sheet, 3/8-in. manila bolt rope.  Four 1/2-in. bronze turnbuckles, Fig. 34, are used for the shrouds; one 5/8-in. turnbuckle for the jibstay and one for the bobstay; four 3/8-in. turnbuckles for the runner plank stays, and one for the martingale stay.

Two rope blocks for 3/8-in. wire rope, Fig. 10, are used for the peak and throat, and one block for the wire rope 1/4 in. in diameter for the jib halyard.  Four 6-in. and one 7-in. cleats, Fig. 18, are used.  The blocks shown in Fig. 11 are used for the main and jib sheets.  The steering arrangement is shown in Figs. 4 and 5.  The tiller is 3-1/2 ft. long; rudder post, 1-1/4 in. in diameter; shoulder to lower end of jaws, 4 in.; depth of jaws, 2-7/8 in.; length of post including screw top, 12 in.  The rubber washer acts as a spring on rough ice.

In Figs. 13, 14, 15 and 16 are shown metal bands for the nose of the backbone, and Figs. 19, 20, 21, 22 and 23 show the saddles that fit over the backbone and hold the runner plank in place.  There are two sets of these.  A chock should be sunk in the runner plank at each side to connect with the backbone to keep it from slipping sidewise as the boat rises in the air.  The martingale spreader is shown in Figs. 24 and 25.  Straps through which the ring bolts for the shrouds pass on the ends to fasten the turnbuckles for the runner plank guys are shown in Figs. 26 and 27.  The bobstay spreaders are shown in Figs. 28, 29 and 30.  In Fig. 31 is shown the top plate for the rudder post and in Figs. 32 and 33, the lower plate for same.  The mast step is shown in Figs. 35, 36 and 37.  Two positions of the jib traveler are shown in Fig. 38.  The anchor plate for the bobstay under the cockpit is shown in Figs. 39 and 40.