Originally Posted by
ORAC
You buy in tranches - you can buy three tranches of identical models/marks.
But they were never identical to begin with,and if they have different mark numbers it might make it bit easier. After all, they are throwing mark numbers at the Chinook force like they are going out of fashion, and there is more commonality between them than there is between T1 and T3 Typhoons. which are all FGR.4s.