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Procedure turn required?



 
 
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  #1  
Old June 6th 05, 07:13 PM
Gary Drescher
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"Lakeview Bill" wrote in message
. ..
I have to take issue with your statement:

"Seems to be relatively clear that if the entire procedure includes a PT,
unless you're being radar vectored or on a labeled NoPT segment, you are
required to fly it."

But take another look at what the AIM actually says:

"A procedure turn is the maneuver prescribed when it is necessary to
perform a course reversal..."

As I read this, it is saying:

If a course reversal IS required, it must be done via a procedure turn.

If a course reversal IS NOT required, a procedure turn IS NOT required.

.It appears that the intention is to specify the METHOD THAT MUST BE USED
if
a course reversal is required, not to require a procedure turn under all
circumstances...


You're right to want to look at the requirement in the context of the
preceding sentence (Pete made that point too earlier in the thread). But
let's look at the succeeding sentence as well. Here are all three:

AIM 5-4-9a: "A procedure turn is the maneuver prescribed when it is
necessary to perform a course reversal to establish the aircraft inbound on
an intermediate or final approach course. The procedure turn or hold in lieu
of procedure turn is a required maneuver. The procedure turn is not required
when the symbol 'No PT' is shown, when RADAR VECTORING to the final approach
course is provided, when conducting a timed approach, or when the procedure
turn is not authorized."

When the third sentence lists conditions under which the PT is "not
required", it obviously means that you are not required to perform the
course reversal at all; it does *not* mean that you may perform the course
reversal, but need not use the PT method. And the requirement spoken of in
the third sentence is clearly the same one as the requirement spoken of in
the second sentence; that is, the second sentence asserts the requirement,
and the third sentence gives exceptions to the requirement. Therefore, the
second sentence, like the third sentence, is referring to a requirement to
perform a course reversal (and to do so via a PT), rather than just
referring to a requirement to execute a PT *if* you reverse course. (And
therefore the first sentence is just explaining a rationale for prescribing
a procedure turn, without yet addressing the mandatory nature of the
prescription, which is not asserted until the second sentence.)

--Gary


  #2  
Old June 7th 05, 05:16 PM
Doug
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I'd like to know what some of the freight dogs do. They fly into
smaller airports without radar coverage, so they are flying full
approaches. Dollars to doughnuts they aren't going to be wasting any
time going around in useless circles.

The rules have to make sense. Pattern entries, intercepting tracks,
entering holds all call for the smoothest, least amount of manuevering
that works. There HAS to be a rhyme and reason in the regs, and, in
spite of all the moaning and groaning, there usually is. When there
isn't you get a rule that isn't being followed. Sometime later that
rule is changed to adopt the sensible procedures. I don't even think
the regs require useless procedure turns and holds when you are already
on course. But some of you seem to be fixated on it for some inane
reason (instructor superiority/student confusion complex?).

It is a required manuever for a COURSE REVERSAL. It's not a required
manuever if you are already on course.

Ditch the rhetoric and useless redundancy. Fly the plane like it's
supposed to be flown, safely and efficiently. Don't make up your own
procedures, follow the charted approach. But use some common sense. If
YOUR instructor told you it was necessary, don't just blindly pass that
misinformation along to the next generation of pilots. Get rid of the
obsolete and useless, latch onto the efficient and reasonable. Fly the
airplane, not the regs.

  #3  
Old June 7th 05, 05:46 PM
John Clonts
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I agree completely with the sense of your post. In your own flying,
for this purpose how do you define "on course"? +/- 10 degrees? 30?
45? 90?
--
Cheers,
John Clonts
Temple, Texas
N7NZ

  #4  
Old June 7th 05, 06:40 PM
Chris
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"John Clonts" wrote in message
ps.com...
I agree completely with the sense of your post. In your own flying,
for this purpose how do you define "on course"? +/- 10 degrees? 30?
45? 90?


Don't forget altitude too!


  #5  
Old June 7th 05, 07:29 PM
Gary Drescher
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"Doug" wrote in message
oups.com...
I don't even think
the regs require useless procedure turns and holds when you are already
on course. But some of you seem to be fixated on it for some inane
reason (instructor superiority/student confusion complex?).


Several of us have cited the regs (or AIM directives) that do require a PT
even when on course, and have defended our interpretation. You reiterate
your disagreement, but you make no effort to say which part of our analysis
is supposedly flawed. Instead, you just keep repeating what we already agree
on (namely, that a PT makes no sense in the situation in question). And you
defend your position in part by a dangerous misinterpretation of FAR 91.3b
(you said you think it exempts you from the rules whenever you believe your
alternative to the rules is safer; in reality, it exempts you from the rules
only during an *in-flight emergency*).

If
YOUR instructor told you it was necessary, don't just blindly pass that
misinformation along to the next generation of pilots.


No one here cited their instructor's authority in defense of their
interpretation of the regs; you're just making that up. We cited the FAA's
actual regs and directives, and gave detailed analyses of them. You're
choosing to ignore what we actually said, pretending instead that we said
something that would be easier for you to rebut.

--Gary


 




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