"John R Weiss" wrote in message
news:d51Mb.18790$8H.49642@attbi_s03...
"John R Weiss" wrote...
I have never read about "a spoiler flap in a speedbrake configuration"
in any textbook. Anyone else?

You might want to look at the recorded parameters for the DFDR on your
747-400.

Sorry, but they don't let me bring home a DFDR. Exactly where would I
find a
reference to "a spoiler flap in a speedbrake configuration," and in what
context?


Also, I just looked through 14CFR Part 121 -- including 121.343, 121.344,
and
Appendices B and M (the FAA standards for Flight Recorder and DFDR
operational
parameters) -- and found absolutely no reference to "spoiler flaps" in
ANY
configuration.

Or even "spoiler". Although, anyone familiar with aerodynamic surfaces
could use the full nomenclature for the fixed spoiler, or the spoiler flap.