5. Weight Balance. 



Submerged Weight of Vehicle Subsystems 



a. Personnel Capsule + 1,810 1b 



b. Helium Reservoirs — 5,920 lb 



c. Ballast Tanks - 2,570 1b 



d. Frame (est) - 4,000 lb 



e. Lifting Gear - 2,000 lb 



f. Batteries and Propulsion System —5,000 1b 



Total -17,680 1b 



Thus, the vehicle needs 17,680 lb of permanent buoyancy. This would be 

 provided by syntactic foam with a density of 40 Ib/ft^ 



17,680 

 Foam vol = ~:^T7~ = 737 ft^ 



Dry Weight of Vehicle Subsystems 



a. Personnel Capsule 5,420 1b 



b. Helium Reservoirs 42,120 1b 



c. Ballast Tanks 2,963 1b 



d. Frame 4,000 1b 



e. Lifting Gear 2,000 1b 



f. Batteries and Propulsion System 5,000 1b 



g. Foam 29,500 lb 



Total 91,003 1b 



144 



