FSX – BAE Systems CT4 Airtrainer flight2000it 13 years ago FSX – BAE Systems CT4 Airtrainer. Operated at Tamworth by BAE Systems, the CT4 is a well proven trainer manufactured in New Zealand. CT4 aircraft with custom animations, gauges and textures by Frat Bros Design. 4,5 MB FSX – BAE Systems CT4 Airtrainer Patch– FSX BAE Desert Hawk– FSX RAF BAE Nimrod MR2