AVSIG: 30/90 degree intercept? wwswsigarch.jpg (7236 bytes)

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AVSIG Discussion Sections >> Air Traffic Control

Todd Alfes
AVSIG Member


Reged: 07/28/12
Posts: 41
Re: 30/90 degree intercept?
      07/24/17 10:33 PM

Yes, vectors are different than direct.

A vector is an assigned heading while direct is an assigned course. This is particularly important when we're applying our "passing or diverging" rule whereby we're allowed to discontinue vertical separation once we've established a minimum course divergence - which can be as little as 15 degrees. We can establish this by clearing aircraft to fixes whose courses are at least 15 degrees apart or by assigning two vectors that are at least 15 degrees apart.

The thrilling misapplication of this rule occurs when we apply a course to one and a heading to the other and then discover that we don't have 15 degrees. Fifteen degrees isn't much to begin with, and when you have the wind blowing it down to five degrees it gets people excited in a hurry.

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Entire topic
Subject Posted by Posted on
* 30/90 degree intercept? Stephen Loeffler (SoCal TRACON) 07/23/17 09:34 PM
. * * Re: 30/90 degree intercept? Scott Dunham (RDU)   07/25/17 02:37 AM
. * * Re: 30/90 degree intercept? Stephen Loeffler (SoCal TRACON)   07/25/17 03:36 PM
. * * Re: 30/90 degree intercept? Kcid LlirreM   07/27/17 08:35 AM
. * * Re: 30/90 degree intercept? B. Butler (Oregonian)   07/31/17 05:55 PM
. * * Re: 30/90 degree intercept? Stephen Loeffler (SoCal TRACON)   07/28/17 03:53 AM
. * * Re: 30/90 degree intercept? Scott Dunham (RDU)   07/30/17 10:32 AM
. * * Re: 30/90 degree intercept? Scott Dunham (RDU)   07/26/17 01:38 AM
. * * Re: 30/90 degree intercept? sreyoB yrraL   07/26/17 05:06 AM
. * * Re: 30/90 degree intercept? Stephen Loeffler (SoCal TRACON)   07/26/17 03:54 PM
. * * Re: 30/90 degree intercept? sreyoB yrraL   07/27/17 12:57 AM
. * * Re: 30/90 degree intercept? Stephen Loeffler (SoCal TRACON)   07/28/17 03:44 AM
. * * Re: 30/90 degree intercept? sreyoB yrraL   07/28/17 10:30 AM
. * * Re: 30/90 degree intercept? Scott Dunham (RDU)   07/26/17 12:44 PM
. * * Re: 30/90 degree intercept? Jeff Hartmann CIC   07/26/17 02:29 PM
. * * Re: 30/90 degree intercept? Stephen Loeffler (SoCal TRACON)   07/26/17 03:55 PM
. * * Re: 30/90 degree intercept? Jeff Hartmann CIC   07/27/17 02:08 AM
. * * Re: 30/90 degree intercept? sreyoB yrraL   07/25/17 10:10 AM
. * * Re: 30/90 degree intercept? Scott Dunham (RDU)   07/26/17 01:41 AM
. * * Re: 30/90 degree intercept? Todd Alfes   07/24/17 10:08 PM
. * * Re: 30/90 degree intercept? sreyoB yrraL   07/23/17 11:17 PM
. * * Re: 30/90 degree intercept? Todd Alfes   07/24/17 10:33 PM
. * * Re: 30/90 degree intercept? Stephen Loeffler (SoCal TRACON)   07/24/17 11:24 AM
. * * Re: 30/90 degree intercept? sreyoB yrraL   07/24/17 11:35 AM
. * * Re: 30/90 degree intercept? Stephen Loeffler (SoCal TRACON)   07/25/17 03:50 PM
. * * Re: 30/90 degree intercept? sreyoB yrraL   07/25/17 07:31 PM
. * * Re: 30/90 degree intercept? Stephen Loeffler (SoCal TRACON)   07/24/17 12:04 AM
. * * 30/90 degree intercept? Ray Tackett   07/23/17 10:02 PM

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