The SAAF was formed in 1920 and originally used the ensign of the British Royal Air Force until a distinctive SAAF ensign was adopted in December 1940. The SAAF adopted an Air Force ensign which retained the sky blue background of the RAF ensign but exchanged the Union Flag for the South African flag and placed the orange, white and blue roundel of the SAAF in the fly.

South African Air Force Ensign (1940 - 1951)

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