Gavin then began work on designing an aerospace grade, world leading electronic fuel injection system for UAV carbureted engines. In 2009 Currawong secured a contract to supply the EFI system for Honeywell’s T-Hawk Micro Air Vehicle.

Over 700 systems were supplied. Since then the EFI system has been used by Raytheon Sensintel (US), Fuji-Imvac (Japan) and numerous other UAV manufacturers.