wrote in message
ups.com...

Dudley Henriques wrote:
"Frank Minich" wrote in message
...
Sorry to jump in late.

I always understood the AOA units were somehow calibrated but
arbitrary,
so the 139 KIAS was the nominal speed that corresponded to on-speed AOA
with full flaps and 50,000 pounds max-trap weight.

Units should be either a percentage of the lift coefficient curve for the
wing or a percentage of the AOA vane as determined by the OBC depending
on
the type if I remember....but I'm getting old :-)).

Dudley Henriques

Nope, just the place you flew when on speed...ya know, make the needle
be where it was supposed to be...Don't know know how, just why....

Not sure I understand the reply. If I remember right, the AOA for the Turkey
ran from 0 to 30 units. This represented the probe range of between -10 and
+40 degrees. That's a probe percentage readout . Optimum approach donut
was........Lord I need a memory here :-) 14.5 to 15.5 on amber?????????.

I could be mistaken. It's been 30 years!! :-))))))))))))))))))))
Dudley
Henriques