Simple Modification Saves Millions in Fuel Costs for C-17 Globemaster III
2025-02-03

The US Air Force has achieved significant fuel savings by attaching 3D-printed microvanes to the rear fuselage of its C-17 Globemaster III transport aircraft. This surprisingly simple modification reduces drag by 1%, resulting in annual fuel cost savings of $14 million. The microvanes address aerodynamic issues caused by the upswept rear section when the cargo door is open, improving fuel efficiency. This cost-effective innovation is not only benefiting the US Air Force but has also garnered international interest, highlighting the importance of technological advancements in maintaining military competitiveness.