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
Royal Air Force Antarctic Flight Royal Air Force Antarctic Flight The Royal Air Force Antarctic Flight was an independent flight of the Royal Air Force organised to support the Norwegian–British–Swedish Antarctic Expedition in 1949-50. It was the first RAF unit to operate in Antarctica. The Flight was led by Squadron-Leader George Brian Walford, and had five personnel in total, selected from over 250 volunteers - two officer pilots and three non-commissioned officer mechanics. It operated two Auster Mark 6 aircraft, painted orange and modified for cold-weather conditions, with convertible ski/wheel and float undercarriages. The Flight was shipped to Antarctica from Cape Town aboard the "Norsel",