Cable (%" Stainless Steel Aircraft Cord) 

 2" I.D. Firehose 



Hose Coupling { 



Pipe Nipple- 



2" X Vi" X 2" Pipe Tee- 



Pipe Nipple- 



Jaw-end Swivel' 



Round-pin Shackle - 



2"X1"X2" Pipe Tee — 

 Pipe Plug 



SCALE 



2" 



Stuffing Box 



^ / Packing Glond 



-Powerline 

 (#14 type S.O., 3 Conductor Neoprene Cord) 



Pipe Nipple 



Hose Coupling 



^1" I.D. Rubber Hose 



— Welded SteeJ Rod 



Figure 4. --Schematic drawing of the lower hose-cable terminal assembly. Pipe threads are not 



indicated. 



produce at a speed of 10 knots. The support 

 system has an ample safety factor for this 

 load. The average ultimate breaking strength 

 is 6,000 pounds for the cable and 8,000 

 pounds for the shackles and the swivels. The 

 recommended safe working load is about 1.600 

 pounds for all three. 



The upper half of the support cable is en- 

 cased in yiny tubing to prevent the inner 

 surface of the hose from being damaged 

 where it rides on the guidewheel when set 

 for towing. 



The Winch 



The winch (fig. 5) is a steel drum 3 feet in 

 diameter and 4 feet in length with a 1/2-inch 

 I.D. pipe axle supported at each end by a 

 channel iron stand. The base of the stand is 

 bolted through the deck of the vessel. The 

 hose is spooled onto the lower surface of the 

 drum to minimize strain on the deck bolts, 

 and its upper end is connected to a 2-inch 

 plumber's pipe cross mounted near one edge 

 of the drum. 



