Going back to my post #42 in fairness to the Trident perhaps worth noting that the 727 could get into a mess on approach and (according to Wikipedia) 6 were lost on approach the 1960s. Landing (esp Autoland) was perhaps the Tridents strongpoint...I remember hearing one on VHF amaze the tower by landing so precisely on 28L it was able to take the first right turning (23L junction) (equivalent to landing at LCY
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Were the staff relations at BEA a factor in the decision to amalgamate it with BOAC into BA?