4/3/4/3 roster
Hi
The roster you described exceeds the 60 hour rule (63 on each block of 7 x 9).
Because the first day after nights is PART of a day off you only have 3 days off then 2 off - NOT 4 and 3 as described - 'A single day off shall include 2 local nights'.
Annual days off 86.9 and every 3 months = 21.73!
The 21 day roster you describe equates to 2190 annual hours and a 42.12 hour week.
It would also give less time coverage to an area and make the requirement for floaters increase.
At the moment it appears that those regions that do not have a 24 hour unit, will only have 3 pilots (NPAS) each - the rest being covered by floaters. You have to run 10 hour shifts to get the maximum time per area and minimise floaters - those areas with multiple types will be hardest hit by this way of managing the rosters - IF you do the math, those units, to run at maximum efficiency will actually need 4 pilots per unit minimum still with a need for floaters and give the full 24 hour coverage with 20 hour bases doing 10 hour maximum rosters. I guess it will be a different matter if the only goal is to save money and not honour the commitment to provide 20 hours from a unit.
This still does not take into account the 15 minutes pre and post flight requirement of the present FTL or any handover period?