F-22 Raptor Flies on 50:50 Bio-Jet Fuel

F-22 Raptor

In brief: The U.S. Air Force has successfully flown an F-22 Raptor at supersonic using a 50:50 blend of bio-based and conventional jet fuel.

Vehicle in the news

Make/Model: F-22 Raptor

Manufacturer: USAF

The word

F-22 Raptor

The 411th Flight Test Squadron at Edwards Air Force Base flew the Raptor to supercruise-supersonic speed without an afterburner, a significant test for the fuel mixture's energy output.

The fuel is a 50:50 blend of conventional J-8 diesel and renewable jet fuel derived from camelina. The flight was the final in a series of tests for the biofuel blend.

The overall objective was to test the biofuel blend for use in the F-22 weapon system. Tests included air starts, operability, performance, and this final supercruise at 1.5 mach at an altitude of 40,000 feet.

And so ...

This fuel blend has already been certified by the USAF for use in its entire fleet of C-17 Globemaster III transport aircraft - these tests mean it will likely be cert'd for fighter aircraft as well.

Photo credits: USAF

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