Software for the development and operation of robotic devices, drones, unmanned aerial vehicles (UAVs), unmanned aerial systems (UAS), and remote control (RC) aircraft; accessories for robotic devices, drones, unmanned aerial vehicles (UAVs), unmanned aerial systems (UAS), and remote control (RC) aircraft, namely, batteries, battery chargers, remote controls, power supply adaptors, wireless signal range extenders, electronic device for controlling flight, and electronic device for video display; downloadable manuals for the operation and maintenance of robotic devices, drones, unmanned aerial vehicles (UAVs), unmanned aerial systems (UAS), and remote control (RC) aircraft; flight simulators for aircraft; electronic navigational and positioning apparatus and system for robotic devices, drones, unmanned aerial vehicles (UAVs), unmanned aerial systems (UAS), and remote control (RC) aircraft comprised of GPS navigational devices, remote controls, radio transmitters and receivers, computer hardware and operating software; data processing apparatus cameras; electric batteries; altimeters; antennas and aerials; scientific angle measurement devices, namely, azimuth measuring instruments; flight controlling apparatus being remote controls for operating drones, unmanned aerial vehicles (UAVs), unmanned aerial systems (UAS), and remote control (RC) aircraft; automatic flight control and autopilot systems comprising computer hardware and software for controlling the flight of aircraft, unmanned aerial systems (UAS), drones, unmanned aerial vehicles (UAVs), and remote control (RC) aircraft; accelerometers and gyros for use in navigation and guidance systems; motion detectors; laser guide instruments, namely, laser guide lights for visual alignment and positioning, not for medical purposes; optical lenses; measuring apparatus, namely, to measure altitude, location, speed, acceleration, orientation, light, sound, heat, magnetics, motion and vision, not for medical purposes; motion detection sensors; electronic sensors, namely, optical sensors, audio sensors, and proximity sensors; stereoscopes; satellite navigational system, namely, a global positioning system (GPS); satellite-aided navigation systems; apparatus for transmission of communication; goggles for virtual reality not for use with video games