Electric sensors; optical sensors; radar sensors; gas sensors for measuring gas concentration; acceleration sensors; pressure sensors; temperature sensors; measuring apparatus for temperature and humidity levels in gases and solid substances; radar apparatus; radiation-measuring instruments, radiometers; remote sensors for detection of oil leaks and spills for stationary use and for use in aviation; optical sensors, remote sensors; recorded and downloadable communications software for connecting computer network users; recorded and downloadable computer software for application and database integration; recorded and downloadable computer graphics software; recorded and downloadable computer programs for use in database management; recorded and downloadable computer programs for use in electronic storage of data; computer hardware and peripherals therefor; apparatus and instruments for recording, transmitting, reproducing or processing sound, images, videos or data; global positioning system apparatus; global positioning system receivers; apparatus and instruments for control of aircraft, in particular apparatus and instruments for measuring and transmission of commands, namely satellite and inertial navigators, flight mechanical data meters for flight test purposes or scientific purposes, wind and turbulence meters, air chemical meters for trace gas measurements, aero magnetic meters, air gravity meters, airborne data processors for calculating and storing of flight data, and airworthy computers, all for use in aviation, avionics, aeronautics and flight inspection systems and airborne maritime surveillance; avionic sensor systems, namely, navigation systems; satellite-aided navigation systems; electromagnetic apparatus used to generate or measure magnetic fields; gravity measuring instruments; in-flight testing equipment; apparatus for checking flight parameters; computer-controlled apparatus for measuring magnetic fields not for medical purposes; computer-controlled apparatus for measuring wind and turbulence; computer-controlled apparatus for measuring trace gas; computer-controlled apparatus for measuring gravity; salinometers