 
<translate> Bayanin: Warrant Officer of the Air Force (WOFF-AF) shi ne babban jami'in Warrant a cikin Royal Australian Air Force (RAAF). Yana da wani na musamman ganawa - shi ne kawai da aka gudanar da mutum daya a kowane lokaci. Alamar musamman ga WOFF-AF ita ce rigar makamai ta Australiya tare da wreath a kusa da shi. Babban Jami'in Rundunar Sojan Sama na yanzu shine Robert Swanwick.  Tambaya: menene babban jami'i a rundunar sojin sama? Ruwa na sani a kasa: <eng> Context: Warrant Officer of the Air Force (WOFF-AF) is the most senior Warrant Officer in the Royal Australian Air Force (RAAF). It is a singular appointment -- it is only held by one person at any time. The special insignia for the WOFF-AF is the Australian coat of arms with a wreath around it. The current Warrant Officer of the Air Force is Robert Swanwick.

Question: what is a warrant officer in air force?
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