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Air chief marshal
Rank Insignia for Air Chief Marshal
RAAF ACM Command Flag (CDF)
Country	Australia
Service branch	Royal Australian Air Force
Abbreviation	ACM
Rank group	Air officer
Rank	Four-star
Pay grade	O10
Formation	1965
Next higher rank	Marshal of the RAAF
Next lower rank	Air marshal
Equivalent ranks	Admiral (RAN) General (Army)

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Air chief marshal (abbreviated as ACM) is the highest active rank of the Royal Australian Air Force and was created as a direct equivalent of the British Royal Air Force rank of air chief marshal. It is also considered a four-star rank. The only time the rank is held is when the Chief of the Defence Force is an Air Force officer.

Air chief marshal is a higher rank than air marshal and is a lower rank than Marshal of the Royal Australian Air Force, which has only ever been awarded as an honorary rank. Air chief marshal is a direct equivalent of admiral in the Royal Australian Navy and general in the Australian Army.

Insignia

The insignia worn on the uniform is three light blue bands (each on a slightly wider black band) over a light blue band on a black broad band.

Australian air chief marshals may also fly an officer distinguishing flag. For air chief marshals this comprises five horizontal stripes which from top to bottom are coloured: dark blue, light blue, red (double thickness), light blue and dark blue with four stars imposed in a line on the red stripe.

Australian air chief marshals

With the establishment of the Australian Air Board on 9 November 1920, Australian Air Corps officers dropped their army ranks in favour of those based on the Royal Air Force. However, it was not until 1965, when Frederick Scherger became Chairman of the Chiefs of Staff Committee and was promoted to air chief marshal, that an RAAF officer attained the rank.

Throughout the history of the RAAF, only four of its officers have held the rank:

	Name	Postnominals	Promoted	Retired	Died
	Sir Frederick Scherger	KBE, CB, DSO, AFC	1961	18 May 1966 (1966-05-18)	16 January 1984 (1984-01-16)
	Sir Neville McNamara	KBE, AO, AFC, AE	1982	1984	7 May 2014 (2014-05-07)
	Sir Angus Houston	AK, AFC	2005	3 July 2011 (2011-07-03)	living
	Mark Binskin	AC	30 June 2014 (2014-06-30)	2018	living

See also

• Ranks of the RAAF
• Australian Defence Force ranks and insignia
• Air force officer rank insignia
• Douglas Evill, an Australian born officer who reached the rank of air chief marshal in the RAF

References

1. "Royal Australian Air Force Officer Distinguishing Flags". crwflags.com. Retrieved 29 November 2015.

• Royal Australian Air Force
• Military ranks of Australia
• Air force ranks