–> ORANGE LINE <– HTK-CS16 "Early WW2 French Air Force paint set" In December 1938 the French Air Ministry issued an instruction on camouflage of all land-based aircraft. Those already in service were painted during 1939, while the new ones received factory scheme. The colours applied could be different depending on the manufacturer – in general Light Blue Grey (Gris Blue Clair) was used on lower surfaces, with a mix of Dark Blue Grey (Gris Bleu Foncé), green (usually Kaki Français or Vert) and brown (usually Brun Fonce or Terre de Sienne) used on upper surfaces