class NMEAPlus::Message::NMEA::APA
APA
- Autopilot Sentence “A”
Commonly used by autopilots this sentence contains navigation receiver warning flag status, cross-track-error, waypoint arrival status and initial bearing from origin waypoint to the destination waypoint for the active navigation leg of the journey. Use of $–APB with additional data fields of heading-to-steer and bearing from present position to destination is recommended. @see APB