ILS Basics Here are the basics of Dead Reckoning, NDB and VOR navigation and Instrument Approaches for flight-simulation enthusiasts. VFR Sectional charts, IFR low altitude enroute charts and Instrument Approach Plates are covered, too. You'll fly short practice flights to sharpen your flight-simulator piloting skills. in Aviation / 航空 > Equipment/ ATCwith aeroatcbasicsdeadequipmentndbreckoningvor