In rec.aviation.piloting Ron Natalie wrote:
wrote:
If the drift is sufficient ( 2 or 3 degrees, I forget the number; it's
in the AIM ) they are supposed to be recalibrated.
The uncertainty in the wind drift angle is usually a lot more than
that.
Huh? What does the wind have to do with VOR's. If the needle is
centered, you're within the tolerance of the VOR. The tolerance
is primarily 4-6 degrees. This keeps you inside the airway at
moderate distances from the VORs.
The uncertainty in the wind correction angle is greater than the
total error in a VOR radial.
So you plan the flight given the winds aloft forcast, crank in a
wind correction angle, and come up with a heading.
The heading you wind up flying to keep the needle centered will
seldom be the heading on your planning sheet.
That's all I'm saying.
--
Jim Pennino
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