51mm Wing Commander Black With Blue Stripe Royal Air Force Rank Braid 30 CDO IX GP RM The HMS Echo ship's badge

The HMS Echo ship's badge features a gold and silver horn on a vertically halved green and blue circle surrounded by a gold twisted rope below a naval crown

Royal Fleet Auxiliary Argus ship badge

HMS Gleaner ship badge

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This Below Air Officers cap badge organisation insignia for the Royal Air Force features a hand embroidered eagle with a crown above

51mm Wing Commander Black With Blue Stripe Royal Air Force Rank Braid 30 CDO IX GP RM The HMS Echo ship's badgeRoyal Air Force officer's ranking braid is an item of blue and black woven braid that is typically worn on the sleeve of an RAF officer's jacket and is used to designate his or her rank. In this instance, three thin blue stripe on a thin piece of black material indicates the rank of Wing Commander. According to RAF dress regulations, the rank braid must be positioned so that the centre of the braid is 9. 5cm or 3 & 3 4" from the edge of the sleeve