 Mk VC Spitfires used by the Royal Australian Air Force over Northern Australia in October 1943 had their 36-inch type C1 fuselage roundels modified to SEAC roundels by painting out the yellow outer ring in the camouflage colours and over-painting the red centre in white.The lower wing type C roundels and upper wing type Bs were also modified by over-painting the red centres in white.The red fin stripe was also painted out with white and, in many cases the blue was extended forward 1 inch making equal widths of .