Originally Posted by
DirtyProp
Rudders look a tad small to me, maybe it's just the perspective.
The vertical fins are all moving, so maybe they don't need to be as big. Further, with two-axis thrust vectoring smaller fins would seem to be able to do the job of yaw control. The F-22's thrust vectoring is in pitch plane only. F-35 has no thrust vectoring at all except for B model for VTOL operation only.