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The current Air Force officer rank names and insignia were taken from the Army upon the establishment of the Air Force as a separate service in 1947. The insignia have been essentially unchanged since then, except for a brief period during the 1990s, when then-Air Force Chief of Staff General Merrill A. McPeak redesigned the service dress uniform.
Cameroon Air Force [4] [5] [6. Général d'armée aérienne: ... Comparative air force officer ranks of the Americas; Ranks and insignia of NATO air forces officers;
An Air Force Occupational Badge is a military badge of the United States Air Force which is awarded to those members of the Air Force community who are engaged in duties "other than flying". The purpose of the Air Force Occupational Badge is to denote and recognize training, education and qualifications received in a particular career field and ...
The title flight officer was a military rank used by the United States Army Air Forces during World War II, and also an air force rank in several Commonwealth countries, where it was used for female officers and was equivalent to the rank of flight lieutenant. The term flight officer is sometimes used today to describe job title positions as ...
Warrant officers (WOs) and chief warrant officers (CWOs) in the US military rank below officers but above officer candidates and enlisted servicemen. The first warrant officer rank, WO1 does not have a "commission" associated with it, instead having a "warrant" from the secretary of the army.
The LC 50 of soman in air is estimated to be 70 mg min per m 3. Compared with the LC 50 value for a rat, the human lethal concentration is much lower (954.3 mg min/m 3 versus 70 mg min/m 3 ). For compounds such as soman, which may also be used as a weapon, often a fraction of the LC 50 dose is where the first effects appear.
An Enlisted Performance Report (EPR) is an evaluation form used by the United States Air Force. Instructions for constructing an EPR appear in chapter 3 of Air Force Instruction 36-2406: Officer and Enlisted Evaluation Systems. The EPR replaced the Airman Performance Report (APR) in the late 1980s. The EPR was replaced by the Enlisted ...
In toxicology, the lethal dose (LD) is an indication of the lethal toxicity of a given substance or type of radiation. Because resistance varies from one individual to another, the "lethal dose" represents a dose (usually recorded as dose per kilogram of subject body weight) at which a given percentage of subjects will die.