The paravane is a towed winged underwater object—a water kite. Paravanes have been used in sport or commercial fishing, marine exploration and industry, sports and military applications. The wings of
Towed winged unpowered water kite
A paravane being lowered into the sea from an Australian warship in 1940
Water kiting...paravaning in marine industry
An underwater glider is a type of autonomous underwater vehicle that employs variable-buoyancy propulsion instead of traditional propellers or thrusters. It employs variable buoyancy in a similar way
Paravane (water kite)
…Surface water sports Underwater glider – Type of autonomous underwater vehicle DeepFlight Super Falcon – Winged personal submarine…
A University of Washington Seaglider being prepared for deployment
A Seaglider at the surface between dives