I am not sure if this was posted before (nothing came up on my search).
Here we go, for your reading pleasure.
http://www.1af.acc.af.mil/shared/media/document/AFD-120316-039.pdf (http://www.1af.acc.af.mil/shared/media/document/AFD-120316-039.pdf)
http://captalk.net/index.php?topic=14959.msg269349#msg269349 (http://captalk.net/index.php?topic=14959.msg269349#msg269349)