Avionic instruments and avionics systems, namely, flight situational awareness and warning systems comprised of computer processing hardware for computation of pilotage and situational awareness information, electronic displays and controls, cameras video interface components, data storage devices in the nature of blank magnetic data carriers, associated application software and databases; flight warning systems comprised of on-board sensors for sensing terrain and other obstacles along the flight path and/or in near proximity to the aircraft, computer processing hardware for computation of hazard and warning information, electronic displays and controls, head-up displays and head wearable displays, video interface components, data storage devices being blank magnetic data carriers, and associated application operating software; day and night enhanced flight vision systems and imaging devices, for full flight envelope, also usable in extreme weather conditions and low visibility situations, comprised of computer processing hardware for computation of pilotage and situational awareness information, electronic displays and controls, video interface components, cameras, data storage devices being blank magnetic data carriers, head-up displays and associated application software and databases; all of the foregoing for fixed and rotary wing aircraft