The diagrams for Peformance charts and tables are for piston engine aircraft. They required interpolation of data to obtain climb/cruise performance. Fairly standard stuff. Mass and balance calculations and to work out restrictions for take off/landing etc.
Other diagrams were for taxiway signs/holding point markings for CAT3.
By far the hardest part is stage 2 with Dr.Morawetz! 4Hrs intensive brain crushing computer tests. Speed and concentration are key. They dont want to see high scores on any particular stage, just a positive trend. Out of 12, only 3 passed.
Type ratings - One of the guys who passed the selection was placed on a Fokker course.