Ⅰ Aircraft History Early Aircraft Evolution In fifteenth Century, Da Finch designed a vertical screw - like helicopter, but it didn't go beyond empty talk. Geller designed and built monoplane glider model with adjustable cruciform tail, like the kite wing assembly in high angle range, which can change the weight and center. This gliding device has great significance in flight. The Wright brothers' first testing aircraft is completely controlled, on its own power, whose body is heavier than air, continued to hover without landing. That is "the world's first aircraft". UAV Evolution The First UAV Peter Cooper and Elmer A. Sperry invented the first automatic gyro stabilizer, which can make the aircraft keep balance in forward flight. This technology transformed successfully United States Navy Curtiss N-9 type trainer to the radio controlled UAV. UAV Types There are three types of UAV at present: fixed wing, helicopter, multi rotor. Fixed wing refers to the propulsion or pulling force that is generated by the power plant, which is generated by lifting the fixed wing of the fuselage and flying heavier than air in the atmosphere. The multi rotor is a special unmanned helicopter with three or more rotor axes. The motor rotates through the motor on each axis to drive the rotor to generate thrust. By changing the relative rotational speed between the different rotor, the size of the propelling force of the single axis can be changed and the trajectory of the aircraft can be controlled. Ⅱ multi-rotor UAV flight Motion Types At present, the motion mode can be roughly divided into four types: vertical motion, pitching motion, rolling motion, and yaw motion. Ⅲ UAV Future UAV Iteration First generation: all kinds of basic remote control aircraft; Second generation: static design, fixed camera, video and static photos, manual driving control; Third generation: static design, biaxial gimbal, high definition video, basic security mode, auxiliary driving; Fourth generation: revolutionary design, thri-axis gimbal, 1080p HD video or higher value instrument, improved safety mode, autopilot mode; Fifth generation: revolutionary design, 360 degree gimbal, 4K video or higher value instrument, intelligent driving mode; The sixth generation: business applicability, design conforming to safety and regulatory standards, platform and payload adaptability, automatic safety mode, intelligent driving model and complete autonomy, airspace consciousness.
