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Refer to figure.
You have correctly tuned and identified an NDB and a VOR, and the relevant RMI is shown in the figure. Given the indications on the RMI, the True bearing from the VOR is (1) _____ and the NDB (2) _____, if variation at the aircraft is 4°E and variation at both the NDB and VOR is 20°W?

  • A

    (1) 279°; (2) 155°

  • B

    (1) 239°; (2) 179°

  • C

    (1) 279°; (2) 139°

  • D

    (1) 239°; (2) 163°

Refer to figure.
First identify which needle is which - the green needle is the ADF and the yellow needle is the VOR.

Then work out the magnetic bearings from the two navaids. Remember your aircraft is ALWAYS on the tail of the needle - the QDR. 

We have a bearing of 259° from the VOR and 159° from the NDB. 

These are magnetic and the question is asking for true, so we need to convert the bearings using variation - C D M V T. Variation is applied at the station for a VOR and at the aircraft for an NDB, so we can work out:

  • VOR: 259 - 20 = 239° true bearing from the VOR.
  • NDB: 159 + 4 = 163° true bearing from the NDB.

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