The trim pumps— JABSCO Model 10490, 

 ball-bearing, self-priming pumps — are 

 mounted on brackets bolted to blocks welded 

 to the hull. The pumps are turned by electric 

 motors and controlled at the pilot's station. 

 Each pump operates in one direction only. 



They are connected to the 110-VDC bus and 

 run at 1,750 rpm (2 hp) with a capacity of 84 

 gal/min. 



The forward trim tank has a manometer 

 connection for reading the percentage of 

 water. The gage is located at the pilot's 



TABLE 6.7 SUBMERSIBLE TRIM SYSTEMS 



303 



