There are a number of reasons why there is no flying on Friday afternoons. I can't speak for AG's unit because I do not know where he is stationed but from my experience Friday afternoons are usually spent doing ground training (lectures and the like - necessary but tedious, we would rather have been flying) and it gave the groundcrew the chance to fix all the jets that we had broken during the week to get a reasonable number on first line for Monday morning.
Unemotive posts are boring arent they <img src="smile.gif" border="0">