🔍 Key Concepts

• Relationship between gyro bearing, gyro error, and true bearing (the standard conversion formula you use on exams) • How beam width affects the bearing of a target’s right tangent versus the center of the radar beam • Meaning of a 1° E gyro error in terms of whether true is greater than or less than gyro

💭 Think About

• First, if your radar beam is 2° wide, what is the bearing of the center of the beam if the right edge (right tangent) is at 316°? • Once you have the beam center in gyro bearing, how do you convert that to true bearing when the gyro error is 1° E, based on your standard formula? • After converting to true, which of the answer choices is closest to the true bearing you computed?

✅ Before You Answer

• Be clear on your sign convention: does 1° E gyro error mean True = Gyro ± 1°? Verify which way you were taught. • Make sure you adjusted for half the beam width (1°) in the correct direction for the right tangent (clockwise on the radar display). • Confirm that the final value you compare to the choices is a true bearing, not a gyro bearing.