fokker100 take off flap affects on performance
I have not flown the Fokker 100 but did fly the Fokker F27 and a flapless take-off was permitted on this aircraft.
It was not unusual to find at some airports we operated from that an obstacle in the second segment of the climb was restrictive. That is, at the current weight and density altitude the aircraft would not be able to clear the obstacle using flap 16. We would then calculate, using the performance charts, if we could use zero flap. This would require a runway that was long enough for us to reach a flapless V2 and this increased take-off speed improved the climb in the second segment.
If the runway was not long enough the only option was to reduce the weight.