If you're lucky enough to get redundancy, it appears that you may have to wait a short while (at least a week) before you can apply for your leave/resettlement.
If indeed the notification comes out on the 12th Oct (or shortly after), take note that RAF have been informed they cannot use JPA for a period of ten days commencing COP the very next day in order to allow our Navy friends to come on-line. (Having seen how smooth JPA runs, how likely is it that these ten days will not be extended?)
It sounds as if Friday 13th could be a busy day for some!.
