OP - Carefull
Pete - They may be tankering back, fuel on the AMS - BHX leg, its very confidential and dependent on commercial agreements - A Viscount could burn 900 Kg BHX to DUB (not sure of the load) from childhood memory !!!!
A Trident broke the number handling on my Casio (RTOW limited by the RWY at Brum) - I think they were sub'd when the S1-11' s were in maint. I lived as a nipper 1.5 MN WNW of the Golf X.
How did the EI 737'200's compare with the 1-11's on the same route ? - bet its comparable with AMS.
CAT III