Group captain the wing commander and group captain command pennants are triangular in shape. The rank of group captain is also used in a number of the air forces in the Commonwealth, including the Bangladesh Air Force, Ghana Air Force, Indian Air Force (IAF), Nigerian Air Force, Pakistan Air Force (PAF), Royal Australian Air Force (RAAF), Royal New Zealand Air Force (RNZAF), Sri Lankan Air Force and the Trinidad and Tobago Air Guard. It is also used in the Egyptian Air Force, Hellenic Air Force, Royal Air Force of Oman and the Royal Thai Air Force. The Royal Canadian Air Force used
History of the Royal Canadian Air Force Royal Air Force, with the exceptions, in the enlisted ranks, of the RCAF having the ranks of Warrant Officer 1 and 2, not having the ranks of Senior Aircraftman or Junior Technician, and not distinguishing between aircrew and non-aircrew for Sergeants and above. The rank structure is almost identical to that of the Royal Australian Air Force, once again with the exception of Warrant Officer 2. RCAF Women's Division personnel used a different rank structure. When the age limit for British Commonwealth Air Training Plan aircrew recruits was lowered to seventeen in 1941, the recruits were placed into the temporary