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TheAustraliancivil air ensign is anAustralianflag that is used by Airservices Australia.
The design of the flag is based on theBritish civil air ensign, which is divided into quarters by a dark blue cross with a white fimbriation. There is aUnion Jack in the upper hoist quarter, and the other quarters light blue. When an Australian version was first adopted in 1935, it included the stars from theAustralian national flag in yellow, and with theSouthern Cross rotated by roughly 45 degrees, meaning that the smallest star was completely inside the arm of the blue cross. In 1948, the colour of the stars was changed to white to improve the flag's recognition when viewed from a long distance.
Originally, civil air ensigns were intended to be flown at airports and by civilian aircraft on the ground. While the practice of flying flags from landed aircraft has not commonly continued, this flag has been used by agencies such as the Civil Aviation Authority and is still used by the Minister for Transport. On 21 April 2009, the Civil Aviation Safety Authority granted theAustralian Air League official use of the Australian civil air ensign to recognise the organisation's significant contribution to aviation in Australia.[1]
