Rockwell Collins' Pro Line 21 Continuum avionics upgrade has been certificated for the Gulfstream II and IIB. The kit includes the Collins FDS-2000 Flight Display System, which is also certificated for the Gulfstream III. The Gulfstream II installation includes four FDS-2000 Adaptive Flight Displays, the TCAS-4000 traffic alert and collision avoidance system, dual Collins AHS-3000A solid- state attitude heading and reference system, and a Collins Pro Line communications and navigation sensor package.

Source: Flight International