The VOR check rule (14 CFR 91.171) remains crucial, as GPS failures can necessitate reliance on traditional VOR navigation, even in the modern era. Legally permissible VOR inaccuracies (up to 5 ...
While GPS is crucial for IFR flight, VOR navigation skills remain essential as a reliable backup for situations like GPS failures, battery issues, or complex inputs in turbulence. Pilots can mentally ...