Su-27 L.E. flaps
Some pics of the 'first cut' of the LE flaps. In spite of much discussion regarding the pros and cons, I decided to go ahead and try them. All the film of the 27 I've seen shows the LE flaps in the lowered position, including the 'Cobra'. I guess flat out, they are retracted, but every other maneuver shows them down. I haven't figured out the linkage system yet, but thats next. Interestly enough they make an arc moving downward which is why the full sized flaps are curved on the ends. I did not forsee that!