Engines
Williams Proves 100 Percent SAF on FJ44
Turbine engine maker Williams International has successfully completed a flight test of its FJ44-4 engine on 100 percent sustainable aviation fuel.

Turbine engine maker Williams International has successfully completed a test flight of its FJ44-4 engine running on 100 percent sustainable aviation fuel (SAF). This followed extensive material compatibility and endurance ground testing that validated engine performance and reliability using SAF.