GPS failure — The need for data
from By G.A. Hepburn
There can be no doubt that the introduction of GPS has been a game changer in the world of general aviation. In this article, we'll look at the effect it has had, and is about to have on the General Aviation IFR Owner/Pilot. The Air Traffic Control system has evolved over the years to the point that most pilots seldom use the so-called "Traditional Aids." A brief glance at the Canadian LO 6 en route chart (the one covering the Windsor to Quebec City corridor) will show the impact this has had on en route IFR navigation.
All the airways at the heart of this corridor have disappeared, and have been replaced with the so-called "Tango Routes," based on RNAV waypoints. Traditional navaids and airways are being decommissioned at a fairly rapid pace. In the more remote areas of the country, many pilots would hesitate to fly without GPS, as the only alternative is NDB navigation, and flying NDB approaches is a dying art.
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