249. While enroute from Cape Town to Rio a vessel's course is 281° pgc. The variation for the locality is 24° W. The deviation is 4° E. The gyro error is 2° W. What is the true course made good?

The gyro course of 281 pgc is corrected to true by subtracting the 2 W gyro error, resulting in a true course of 279 T. Variation and deviation are not applicable when converting a gyro course to true.