Dataref Search
sim/
sim/cockpit2/
sim/cockpit2/tcas/
sim/cockpit2/tcas/targets/
sim/cockpit2/tcas/targets/icao_type[512]
byte
in string
7 character ICAO code, terminated by 0 byte. C172, B738, etc... see https://www.icao.int/publications/DOC8643/Pages/Search.aspx