Described by some Honeywell engineers as “son of Primus Epic,” the Phoenix company’s Apex integrated avionics system is undergoing a makeover that aims to make that moniker more appropriate than ever. The enhanced version of Apex now under development for Grob’s SPn “utility jet” will feature better integration of TCAS II, weather radar and other functions thanks to greater software processing power. Apex will also more easily integrate nav charts, dual FMS, EGPWS and an optional enhanced-vision system (EVS). Grob plans to certify its light twinjet with an infrared EVS from Kollsman mounted on the top of the nose pointing forward.