HEADLINE NEWS
Allison GMA900 Turbine Tested At 90,000 Ft., Mach 3.5 Conditions
INDIANAPOLIS Allison Gas Turbines has successfully tested a small, ultra-high-temperature turbine designated the GMA900 whose derivatives could power either supersonic unmanned aerial vehicles or missiles. During recent tests performed under the U. S. Air Force’s expendable turbine engine concept program, the powerplant ran under conditions simulating speeds up to Mach 3.5 and altitudes up to 90,000 ft.