there will be no gap, as I think a lot of people have not really been informed of the actual timeline. As I understood what the CinC said, is that Lossie will not be ready to accept ANY typhoons for at least 22 months. So that is mid 2013. Then, prob Sqn 4 will assemble there, and 'build up' to QRA duties. THey are mandated to be 'on QRA' by 2015. Then and Only then, will typhoon at Leuchars stand down, and begin the move to Lossie. ALL tiffies are then to be at lossie by 2017
So, the chances are, 6 sqn, or maybe Sqn 4 [since 6 are already trying to be the first sqn at lossie instead of sqn 4], will remain at leuchars until 2015 at least, prob into 2016
Now, the army side, are also mandated to have the HQ element, in postion and working by 2015
so, for at least a year, there will be Army and RAF at leuchars.
Since Leuchars currently has 1 sqn, and the req amount of support personel, then by my calculation, there will be NO drop in the amount of RAF people at leuchars between 2011, and 2015. But there will be a steady increase of Army input.