NDB, ADF & RMI
Read relative and magnetic bearings on the ADF and RMI, then fly homing and tracking to an NDB in a crosswind
Drag the aircraft on the map to move it around the beacon.
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- Drag the aircraft around the beacon and watch the needle on all three displays.
- Check the sum MB to the station = MH + RB on the readout every time you change heading.
- On the second tab, fly homing in a crosswind and see how the path curves, then fly tracking and see a straight line.
- Use Manual heading to find the heading that makes good the line to the beacon.
Exam point
QDM is the magnetic bearing to the station and the RMI needle tip shows it. QDR is the bearing from the station, 180° opposite, and the RMI tail shows it. When tracking correctly in a crosswind the needle is off the nose by the wind correction angle, not at zero.
Study aid only. Figures here are simplified and fictional, so always use current DGCA and ICAO documents and the approved manual for real operations.