Last time I checked the timetable, which was around Christmas, there was 9 aircraft needed on a Saturday...
Murcia
Belfast City
Rome
Valencia
Malaga
Riga
Ibiza
Tenerife
Nantes
But im pretty sure they will move BHD to 06:25 so that it is able to fit the 09:25 AGP flight. From that i can remember, 9 aircraft were also needed on a Mon? and a Wed? but I believe they wouldnt increase to 9, and so think it will be 8