Project Description EHSI 4000 Electronic Standby Instrument by L3 Avionics Systems Related Projects Gyros J.E.T.® & AIM® Attitude Indicator by L3 Avionics Systems Gallery Gyros J.E.T.® & AIM® Attitude Indicator by L3 Avionics Systems ESI-2000 Trilogy Electronic Standby Instrument by L3 Avionic Systems Gallery ESI-2000 Trilogy Electronic Standby Instrument by L3 Avionic Systems ESI-1000 Trilogy Electronic Standby Instrument by L3 Avionics Systems Gallery ESI-1000 Trilogy Electronic Standby Instrument by L3 Avionics Systems EBDI 3000 Electronic Standby Instrument by L3 Avionics Systems Gallery EBDI 3000 Electronic Standby Instrument by L3 Avionics Systems EHSI 3000 Electronic Standby Instrument By L3 Avionics Systems Gallery EHSI 3000 Electronic Standby Instrument By L3 Avionics Systems