That is 7 days on then 3 off. 10 day rotation which requires 6 bodies to cover for leave/trng etc. Don't argue, we ran this pattern for over 10 years (old BEA/BOAC/BA
system) If your going to screw up a day for 8 hrs + 30 mins handover, rather screw
up a day for 12.5 hrs with more time off. 1 hr handover time against 1.5 hrs handover time (that doesn't count the handover prep time which is normally another wairted non
productive 30 mins per shift)