747 Kreuger flaps?
 

I wonder if anyone can tell me if all variants of the 747 have kreuger flaps? My trusty 'Janes' tells me that the 100/200 do but it is a bit out of date.
Any ideas?:ok:

yes they all do.

There are 13 LED's on each wing, ten of which are variable camber design and three are Krueger flaps. They are divided into four sets. Power to operate the Led's is pneumatic air with an alternate method using electric motors.

Actually, the LE flaps (at least on the -400) are in 3 sets, divided at the engine pylons: Inboard, Midspan, and Outboard. Only the Inboard set are Kreuger flaps.

The LEDs are physically the same on the Classic and -400, but known by different terms and extend in a slightly different sequence. The inboard set on the -400 are Krugers, they are known as set 4 on the Classic.

Selecting flaps 1 on the Classic will extend sets 2 and 4, the inboard third (Krugers) and the out board half of the middle section. Selecting flaps 1 on the -400 will extend the inboard and middle sections.