On 01/03/2007 09:07 PM, Dave Perry wrote:
> This may seem a nit. I had the following quote "drilled" into my mind
> by Don Berman in one of his well know Instrument Written Ground School
> seminars.
>
> "Radials eminate from the station; direction of flight has nothing to
> do with location."
1) That's is correct w.r.t logic and etymology; radials
"should" radiate.
2) I assume that is correct w.r.t written tests, although I
haven't personally checked lately.
3) OTOH that nit is not correct w.r.t real-world flying. As
documentation I offer FAA Order 7110.65R : "Air Traffic Control"
http://www.faa.gov/ATPubs/ATC/
in particular chapter 5 section 6 : "Vectoring"
http://www.faa.gov/ATPubs/ATC/Chp5/atc0506.html
which agrees with my experience of what controllers
actually say. If you are west of the station inbound, the
may give you vectors to intercept the 090 radial inbound.
They call it a radial. They are /required/ to call it a
radial. That Order does not explicitly require them to call
it the 090 radial (as opposed to the 270 radial) but in
practice they do call it 090, for the obvious practical
reasons: 090 is also the /course/ they want you to fly.
It would be madness for them to mention anything involving
270. Nitpickers might suggest they call it the 090 bearing
or the 090 anti-radial or whatever ... but in practice they
call it the inbound radial. By way of documentation on this
specific point I refer to
http://www.faa.gov/atpubs/CNT/2-1-I.htm
http://www.faa.gov/atpubs/FSS/fss0504.html
among other FAA documents which use the phrase "inbound radial"
without the slightest hesitation.
There are many other instances where you need to know one thing
when taking the written test, and need to know something quite
different for flying in the real world. Unless otherwise specified,
you can assume what I say comes from the real-world point of view.
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