Originally posted by tetons9
HalH,
You are right about the F-4J having the leading edge high lift devices but McDonnell Douglas designated them as L. E. Flaps. The F-4B, F-4C, F-4D, F-4K and F-4M also had them. The F-4E had a fixed L. E. and a SLOTTED L. E. on the stabilator and on the outer wing panel.
The aircraft I mentioned that has leading edge DROOPS is the North American FJ4 or FJ4B ( AF1E ). They were electrically operated when the trailing edge flaps were lowered ( electrically operated ) .