<p>Wing = All classes of cadets roughly 4,000
4 groups to the wing. 10 squadrons to a group. Thus Squadrons 1 through 10 = Group 1, Squadrons 11 through 20 = Group 2 etc. (used to be only 36 squadrons but they recently added back the last 4). Each squadron has so many flights (usually 4) and then each flight has so many elements (I forget).</p>