With a heading indicator showing 130 degrees and an automatic direction finder pointing to 210 degrees, what heading should be used with a fixed-car indicator to reach the NDB?

To reach the Non-Directional Beacon (NDB) indicated by the automatic direction finder (ADF), it's essential to understand how to interpret the readings from the heading indicator and the ADF.

The heading indicator reflects the aircraft's current heading, in this case, 130 degrees. The ADF points toward the NDB, which is at a bearing of 210 degrees relative to the aircraft's magnetic heading.

To navigate to the NDB effectively, the pilot needs to fly toward 210 degrees as indicated by the ADF. However, since the aircraft is headed at 130 degrees, the pilot will need to adjust the course to intercept the ADF signal effectively.

To find the correct heading to reach the NDB, the pilot must consider the fact that the course to the NDB from the aircraft's current heading is a relative turning movement. The angle difference between the heading indicator and the ADF reading creates a need for a course correction, totaling a turn to a heading of 210 degrees. If the aircraft flies this direction, it will fly straight toward the beacon.

Using a fixed-card indicator allows for easy adjustment. The correct heading to steer toward the NDB would be a heading of 210 degrees, which is the