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-52 MULLINS 35-FT. LAUNCH. Two views are shown herewith of a launch built by the W. H. Mullins Co.,of Salem, 0, 'This laurich is 35 ft. in length with a 7 ft. beam. The motive power consisting of a powerful six-cylinder, four cycle; 60 H. P. auto- TAE MarRINE REVIEW possible. In fact all of Mullins' boats are guaranteed against leaking. -The wooden frame work is of the best selected oak, keel and ribs, steam bent, so as to exactly fit the hull. It is not bulky or heavy, but is exten- sive and rigid enough to thoroughly 35-FT. MULLINS LAUNCH. mobile engine. The model is a beauty, the lines being carried out gracefully and with a view to obtain- ing the greatest speed possible... And although this launch is intended pri- marily as a pleasure craft, it is evi- dent to all who have seen the model, that it is capable of remarkable speed. The construction of this boat-is not only interesting, but impressive to those: who have never seen a Mullins' boat in the course of construction. From a full sized clay model, prepared from drawings and designs of one of the most noted designers in the coun- try, are taken plaster casts, which are used as patterns for molding the steel dies by which the plates are pressed. The steel dies are all carefully fin- ished and smoothed up by being filed and polished to a mirror-like finish, placed in powerful d-op presses, the heavy plates of 12-lb. gage, galvan- ized steel, to rigid and lasting form. The gradual pressing of the plates be- tween the smoothly finished dies, eliminating any possibility of the steel being drawn, or weakened at any point. The fact that the manufactur- ers give a guarantee against puncture is evidence of the durability of this steel hull. There are but few plates of steel in each hull; consequently few joints. The plates are placed on forms and the joints are countersunk and riveted in the same way the plates of a tor- pedo boat, battleship, or ocean liner are fastened; then soldered and tested, making the hull practically one piece of strong, smooth steel. A leak is im- strengthen and brace the steel hull. The keel itself is not fastened to the outside of the metal shell by means of bolts as is done in other boats. In 'the bottom of the steel hull a slot or groove is pressed into which is dropped the heavy oak keel, which is mortised, the ribs passing through the keel, instead of being nailed or screwed room from the cockpit. ly in the shell, bracing and strength- ening it, yet unattached to it. There is not a single nail, screw, rivet or fastening of any kind attach- ing the hull to the ribs. The result is that there is not an opening in steel shell and if the frame work should ever warp, there are no fastenings of any kind drawn through the shell. The engine base is attached to the keel and supported by special iron ribs. The vibration or pulsations of the engine are absorbed by the frame work and there being a slight move- ment possible of the frame work, vi- brationis not communicated to the hull. There is no danger of opening seams or starting joints and a leak is im- possible. As can be seen from this construction, the vibration of the en- gine cannot in any way effect the sea- worthiness of the hull and to any one who has had experience in power boat- ing, the elimination of this serious de- fect will be thoroughly appreciated. This construction has been patented by the W..H. Mullins Co. The engine and all machinery are of the concealed type, being placed in a special compartment in the bow, aft of the forward bulkhead. A hand- somely paneled oak partition, contain- ing small doors, separates the engine The engine is equipped with the Mullins patent, un- der-water exhaust, insuring noiseless- ' Bock, to, 4t,.. Lhe: advantage 1s obvious. It insures a metal covered wood keel, adding the utmost stiffness and one that cannot loosen up, or tear off, causing the hull to leak. The frame work of the Mullins' boat is attached to the shell only at the keel and at the gunwales. The keel is placed in its position, the gunwales securely bolted in place, the ribs are then forced into position, fitting close- MULLINS LAUNCH. ness, and the elimination of all odors, grease and dirt from the engine. The steering wheel and complete con- trol of the engine are within easy 'reach of the operator's seat and here the motor can be started, as it is not necessary to attach a crank- ing handle, or in any way come in con- tact with the grease and dirt of the engine. The absence of all machinery and moving parts in the cockpit is a