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Delta Virtual Airlines Water Cooler | Airline Operations | IFR Q&A
DVA1528
Captain, B757-200

Joined on February 16 2004

Midwestern United States

43 legs, 103.7 hours
39 legs, 92.1 hours online
Posted onPost created on May 14 2004 08:43 ET by Raymond Lancaster
I was listening to ATC chatter for Chicago approach and heard a clearance I was unfamiliar with. Needing to upgrade my IFR knowlege I bought the book "Instrument Commercial by Jeppsen". My guess at what the clearence means was not even close but I do know now.

So here it is. Just for fun, how do you fly this clearence?

"Cleared for the ILS approach RWY 31C circle 22L"
DVA1427
Senior Captain, MD-11
OLP

Joined on December 14 2003
Online Double Century Club
50 State Club
Tri-Jet Triumph
Globetrotter
Moose Club
US Capital Club
Everett 250 Club
Quincentenary Club
DVA Twenty-Year Anniversary

"Livin' in the Dog Pound!"
Kannapolis, NC

558 legs, 1,984.3 hours
250 legs, 611.8 hours online
384 legs, 1,530.5 hours ACARS
38 legs, 82.7 hours event
Posted onPost created on May 14 2004 08:55 ET by Lewis Gregory
My guess is that for the approach you mentioned, they were having the plane use the runway 31 ILS to get within visual range, and then have him fly at least part of a traffic pattern for the landing runway. I actually had FS2004 issue me one of these once, and that's what it had me do--ride the localizer in to about two miles out, then I got the call to fly a left downwind for the actual landing runway.

Lewis Gregory

Senior Captain, MD-11
DVA1041
Senior Captain, L-1011-100
E-MAIL

Joined on January 15 2003
Double Century Club
DVA Twenty-Year Anniversary

"Fly Delta Jets!"
Cincinnati, OH

233 legs, 780.6 hours
66 legs, 123.7 hours online
20 legs, 39.6 hours ACARS
5 legs, 7.5 hours event
Posted onPost created on May 14 2004 10:38 ET by Matt Creed
That's it in a nutshell, circling approaches are used primarily when an airport has an instrument approach, but not one for the runway that's best suited for the current wind conditions. A couple other things about circling approaches, it's fairly common that on an ILS approach, the circling minimums are higher than if you were shooting a straight in ILS approach. Also, once you break out and begin to circle, if you lose sight of the field, you have to fly the missed approach procedure by making a climbing turn towards the landing runway, and continuing the turn until established on the published missed approach course.


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