Drones for rapid seafloor surveying & sampling
depth rating: 500m (1601 ft)
total non-instrumented weight: 15.88 kg (35 lbs)
release mechanism: passive mechanical
sinking velocity: 3.24 m/s (7.25 mph)
time to reach 500m: ~2.5 min
time to resurface from 500m: ~3.5 min
standard instrument suite: low-light camera, computer (wireless LAN and bluetooth connectivity)
maximum payload: 2.39 kg (5 lbs)
Drone V1
CNCd HDPE monolithic frame with incorporated stabilizing fins, launch / retrieve handle, and instrument mounting surfaces
R-3318 high pressure underwater urethane foam flotation
Cast concrete ballast
Seafloor impact activated ballast release hook
Low-light still/video camera, computer, battery, housed in a pressure-resistant enclosure with acrylic dome viewport (not pictured)
Compatible payload instruments include sediment sampling, CTD, and water quality