French air force roundel - French Air and Space Force

It appeared on all surfaces.

I do so at great risk of being labelled a seriously unbalanced, basement-dwelling aerogeek, lost in minutia and losing sight of the big picture.

By 8 October, expansion to 65 escadrilles was being planned.

It was formed in 1909 as the Service Aéronautique, a service arm of the , and then made an independent military arm in 1934, becoming the French Air Force.

The original design called for the centre red circle to be one unit wide, the white 3 units, the blue 5 units and the yellow 7 units.

By maintaining the white circle, and its better contrast, in the roundels on the underside of wings, the device stood a better chance of being seen by ground forces.