Advanced exhaust discharge for pump jet propulsion apparatus
Anti-vortex pintle
Cavitation compensating propeller nozzle or duct
Combined centrifugal and paddle-wheel side thruster for boats
Dual mode propulsion system
Flow-through pyrotechnic delay
Hydraulic engine
Hydraulic thruster
Hydrodynamic propulsion device
Hydrojet
Integrated nozzle and steering mechanism for waterjets
Jet propulsion engine
Liquid turbojet engine
Marine jet drive shift control apparatus
Marine vessel thruster
Multi-flow marine jet-propulsion apparatus
Power transmission
Pressure-actuated toy rocket system
Propeller assembly
Pulse-jet water propulsor