Weekly tips, technique and training from IFR.

Features May 2018 Issue

Non-Precision, NA?

This profile view of the vertical descent angle, vertical guidance surface and the 20:1 visual area shows that mitigation of VGS penetrations on a non-precision approach can require an excessive descent angle.

Non-Precision, NA?

Vertically guided approaches are different enough from non-precision approaches that the FAA is struggling to balance the non-precision approach’s risk profile with its utility.

Given a choice, chances are a pilot will pick a vertically guided approach over a non-precision approach. They’re easier to fly and the minimums are almost always lower. From a design perspective they also afford stricter obstacle clearance assurances. What’s not to love? That’s probably what the thought process was like that nearly led to a significant portion of non-precision approaches being cancelled or severely restricted in late 2017.  …

To continue reading this article you must be a paid subscriber.

Subscribe to IFR Magazine

Get the next year of IFR Magazine for just $19.97. Get access to all articles published online. Features, reviews, lesson, quizzes - get it all.

That's a savings of more than $14 off the regular rate. Or double your savings and subscribe for 14 issues for just $39.94.

Get IFR Digital

Get 12 months of IFR DIGITAL for just $34. You get unlimited access to everything on the site including each monthly issue as a PDF.

Subscriber Log In

Forgot your password? Click Here.

Already subscribe but haven't registered for all the benefits of the website? Click here.