What is the acceptable error margin for a VOR airborne checkpoint?

The acceptable error margin for a VOR (VHF Omnidirectional Range) airborne checkpoint is indeed +/- 6°. This standard is critical for ensuring accurate navigation, as VOR systems provide pilots with essential directional information to maintain their flight paths.

In practice, when pilots are checking their VOR systems during flight, they must ensure that their indicated radial is within this error margin of what is expected at the checkpoint. If their reading is off by more than 6°, it signals a potential issue with the VOR equipment or the receiver onboard, which could lead to navigational errors.

This standard helps maintain safety and reliability in aviation operations, making it crucial for pilots to understand and apply this margin effectively during their flights.