Air Marshal is a three-star rank in the Royal Air Force. It is the second most senior rank active in the RAF today, after the inactivation of Marshal of the Royal Air Force[?] as a substantive rank in peacetime[?] during defence cuts of the 1990s.
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The device is covered by US patents 3,726,146 (1973) and 5,353,655 (1994) by L.A. Mishler and US patent 5,800,311 (1998) by P.S.Chuang.
Externa ...