Hands free dive flag connector
High resolution vehicle control system
Hoisting and lowering mechanism for a rotatable mast
Hover control system for a submersible buoy
Hull valve assembly
Human controlled towable device for water surface and...
Hybrid boat and underwater watercraft
Hybrid-powered underwater scooter
Hydrodynamic configuration for underwater vehicle
Hydrodynamically and aerodynamically optimized leading and...
Hydrofoil sailboat with control system
Hydrogen generation apparatus for an underwater vehicle