Patriot Excalibur (PEX), developed by USAF is a software application that coordinates the Scheduling, Training, Standards Evaluation and
Aircraft Status activities of unit-level operational military aerospace units.
PEX is used worldwide by over 1000 squadron level units, including all USAF Major Commands, Australia, Poland & Iraq
In 2008, PEX was selected by the Australian Navy and Australian Army to replace existing aircrew currency and flight scheduling systems. Sigma Bravo is responsible for customisation and integration for ADF needs.