Originally Posted by
ishe
The LE flaps are grouped in 4 sets each side: Set 1 (most outboard), set 2, set 3, set 4 (most inboard) TE Flaps 0° - 1°, LE Flaps 2 & 4 signalled and extend TE flaps 5°, LE Flaps 1 & 3 signalled and extend
That's the Classic. The 400 is a bit different. There are 3 groups - Inner, mid and outer. With Flap 1, the inner (Krugers) extend. With flap 5, the other sections extend.