747 leading edge slats?
Discussion
When did this become a thing???
https://youtu.be/149TJ9nxxRU
Leading edge "flap" "retraction" at the 4.20minute mark. Or more accurately flat panel fold away. When did aircraft start using that method rather than the fixed slat/slot? Looks massively draggy.
(Came about watching KLM747 landing by a passenger inside, and the retraction on landing looked a good way to massively increase drag).
https://youtu.be/149TJ9nxxRU
Leading edge "flap" "retraction" at the 4.20minute mark. Or more accurately flat panel fold away. When did aircraft start using that method rather than the fixed slat/slot? Looks massively draggy.
(Came about watching KLM747 landing by a passenger inside, and the retraction on landing looked a good way to massively increase drag).
IanH755 said:
It was used on the 707-320B variant I worked on and they were early 60's build (1st flight 1962) so around early/mid 50's design?
Ah interesting, - I honestly had no idea large aircraft used krueger over slotted/slats. I feel today will be lost looking into this in more depth... Composite Guru said:
jamieduff1981 said:
They're called Kruger Flaps. 
Beat me to it. https://en.m.wikipedia.org/wiki/Krueger_flap
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