BA trainers carried out the initial Ground school , Sim , Base and Line training , and probably some line flying . Until RAF guys had sufficient sectors under their belts .
RAF crews were still using BA sims[ some with BA trainers ] until at least '98 when I left Cale ' Tristars . And a beneficial agreement for Base training at Brize was used by BA/Cale' crews [ Sim older and not up to ZFT standards ] .
rgds condor .