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DC-8 Ailerons

Blackbird From , joined Dec 1969, posts, RR:
Posted (11 years 6 months 3 days 6 hours ago) and read 940 times:

Does the DC-8 have inboard/outboard Ailerons?

Because I can't see any inboards. The outboards appear a bit further inboards than normal, I guess to keep them away from the tips. It almost looks like theres an aileron, and outboard of that is another panel. Is it a flap or something? Or is that a second part of the aileron (the panel divided in two?)

Thanks
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2 replies: All unread, jump to last

Air2gxs From , joined Dec 1969, posts, RR:
Reply 1, posted (11 years 6 months 2 days 15 hours ago) and read 893 times:

There is actually an inboard and outboard aileron. They are bussed together with a spring-loaded torque tube. The outboard is a low speed aileron and the in board a high speed.

As speed increases, the airload on the surface increases and restricts the movement of the outboard aileron via the torque tube. As speed decrease the opposite occurs. Thus you have "4" ailerons with only 2 powerpacks.

Buzz From United States of America, joined Nov 1999, 697 posts, RR: 24
Reply 2, posted (11 years 6 months 2 days 13 hours ago) and read 880 times:

Hi Blackbird, Buzz here. Air2gxs has it right. THe ailerons are NOT like a Boeing ship. If you get the chance to ride in one on a bumpy final approach you'll see everything working.
g'day and Good Thanksgiving

Buzz Fuselsausage: Line Mechanic by night, DC-3 Crew Chief by choice.