Propulsion (rotors specially adapted for rotorcraft or VTOL B64U30/20)

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Propulsion; Power supply > Propulsion (rotors specially adapted for rotorcraft or VTOL B64U30/20)

Child Classifications

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• B64U 50/11 using internal combustion piston engines
• B64U 50/12 using turbine engines, e.g. turbojets or turbofans
• B64U 50/13 using external fans or propellers
• B64U 50/15 using combustion exhausts other than turbojets or turbofans, e.g. using rockets, ramjets, scramjets or pulse-reactors
• B64U 50/16 using means other than air displacement or combustion exhaust, e.g. water or magnetic levitation
• B64U 50/18 Thrust vectoring
• B64U 50/19 using electrically powered motors