A French startup has achieved a modest but telling milestone in unmanned aviation. Celeste Ecoflyers recently completed initial take-off tests of its dAS10 experimental cargo drone at Le Havre airport. The eight-meter fixed-wing platform relies on a pressurized textile wing rather than conventional aluminum spars, ribs and rigid skin. The tests, reported in recent days, saw the drone lift off for roughly a dozen seconds and reach a few meters of altitude. It carried ballast masses exceeding its empty structural weight. Company engineers emphasized a core point. Lift is aerodynamic, not buoyancy. The pneumatic element supports the wing structure itself. But don’t mistake this for a blimp. “Celeste isn’t a blimp, it’s a fixed-wing aircraft,” the company stated, according to Defence Blog . “Lift is aerodynamic, not buoyancy. What’s pneumatic is the wing structure itself: a pressurized textile envelope replacing the rigid skin and spars.” The distinction matters.…