9 Scientific apparatus and instruments, namely, spectrometers; optical apparatus and instruments, namely, optical cables; weighing apparatus and instruments, namely, weighing scales; measuring apparatus and instruments, namely, measuring cups; checking apparatus and instruments, namely, computers; electrical and electronic apparatus and instruments, namely, potential calculators, calculators for digital regulation of speed and fuel flow being FADEC or full authority digital engine controls, braking, temperature, pressure, vibration analysis and flight control calculators; electrical, electronic and magnetic sensors for pressure, speed, displacement, temperature, position, vibration; electronic cards for processing parameters; electronic systems and equipment, whether on board or not, for acquiring and processing data, namely, electronic systems and equipment, whether on board or not, comprised of software for acquiring and processing data performance of propulsion systems, namely, solid rocket motor, cryogenic engines, nozzle, helicopters engines, transmission chain, auxiliary power unit, nozzle, nacelle, engine, transmission, drive shafts, brakes, hybrid powertrain, wind turbines, steam and gas turbines in-flight testing equipment, and data processors; calculation and operating software for simulation, running and storage of test programs; monitoring systems comprised of computer hardware and software for evaluation of security and performance as well as of maintenance and servicing requirements for aircraft engines and/or their modules and parts; electrical and electronic devices and equipment, namely, computer hardware, computer monitors for maintenance and monitoring on board aircraft or engines, fixed on test benches or portable for ground interventions for reading and interpreting data from computers and sensors; data processing equipment and computers; apparatus for recording, transmission, reproduction of sound, images and data; pre-recorded magnetic, optical and digital recording media in the nature of CD-ROMs and DVDs all featuring information concerning aircraft engines; data banks, namely, downloadable databases containing, in particular, information concerning aircraft engines, their operation, the repair, overhaul, servicing, maintenance and reconditioning of engines, modules and parts of aircraft engines containing, in particular, information concerning aircraft engines, their operation, the repair, overhaul, servicing, maintenance and reconditioning of engines, modules and parts of aircraft engines; test benches, namely, comprising of computer hardware and software for motors, engines, turbines and other thrusters machines for aircraft; all these goods used and/or intended for the aeronautical and space field; satellites