So, climb rate isn't dependent on flap settings, is that what you mean? And whoever talked about flapless takeoff...
Hi FlyKingfisher,
the higher the flap setting, the lower the climb gradient ... basically because the angle of climb is lower, then the height gain x distance is lower. Considering the GRADIENT as being the ratio Rate of Climb/ TAS, and ROC = TAS*GRAD here you understand how an increase in climb gradient also give an increase in Rate of Climb ...
Hope that helps,
fregdrav