Etendard IVM Paint Scheme Question

In what year was the underside color of the Etendard IVM changed from white to light gray? And was this color only used on the OTU aircraft, or was it also used on the Etendard squadrons deployed on the carriers Foch and Clemenceau during the 80’s off Lebanon and elsewhere? I can’t find any photos of the line squadrons using this scheme, only the OTU aircraft.

According to the info you can find here :

the underside grey color was adopted in 1987. I guess this one belonged to the 59S Squadron in 1989 :


Thanks for the link Henri. It looks like the gray undersides was adopted when the Etendard IVM was phased out of line service and only in school usage.