Lockheed Martin Approves Use of Synthetic Fuel in F-35 Lightning II

Lockheed Martin has approved the use of synthetic aviation turbine fuels (SATF) in the F-35 Lightning II, aiming to enhance the aircraft's operational readiness and reduce reliance on the extended supply chain.

The new fuel approval supports the Department of Defense’s goals for energy diversification, increasing energy resilience, and improving operational flexibility.

The approval allows F-35s to operate with synthetic fuel blends of up to 50%, combined with conventional jet fuel, depending on the raw materials and production pathways. Lockheed Martin conducted extensive technical and strategic analyses to ensure that SATF meets the performance and reliability standards necessary for the F-35’s complex missions.

SATFs are derived from various sources, including both fossil-based materials like coal and natural gas, as well as renewable sources such as waste oils and agricultural residues. More than 1,100 F-35s are currently operational worldwide, with over 971,700 flight hours accumulated.