34 



THE NAVY OCEAN ENGINEERING PROGRAM 



magnets, mostly of the permanent type, provide a productive area of de- 

 velopment for use as divers' aids. They can be readily used as anchoring 

 devices for swimmer-divers and for positioning and holding aids for divers' 

 tools. 



Sea tools can be designed to be neutrally buoyant or essentially so. An 

 example is a device called the underwater fork lift, presently in develop- 

 ment. The underwater fork hft is essentially a variable-buoyancy platform 

 that a diver can control to assist him in Hfting and performing work. 



Large-velocity powered stud gun. Capable of operating to 1000 ft, this gun 

 can drive solid steel studs into 1-1/8-in. thick mild steel plate. 



Small-velocity powered stud gun, a lightweight, underwater hand-held tool used 

 to punch holes in steel plate or attach studs to metal objects underwater 



