Airplanes, namely jet engine, ducted fan and rocket engine driven airplanes; aircraft, namely, electric jet engine and ducted fan driven vertical take-off aircraft (eVTOL); aircraft, namely jet engine, ducted fan and rocket engine driven vertical or short take-off and landing aircraft (V/STOL); aircraft, namely, light jet engine, ducted fan and rocket engine driven aircraft; aircraft, namely, jet engine, ducted fan and rocket engine driven aircraft; aircraft, namely, jet engine, ducted fan an...