What course per gyrocompass would you need...

Question 1 / 2707066636eea28f7522a1c51b002

Question 1 of 2707066636eea28f7522a1c51b002

What course per gyrocompass would you need to steer from the anchorage to York Spit Channel buoy "29"?

Question 1 of 27070

What course per gyrocompass would you need to steer from the anchorage to York Spit Channel buoy "29"?

🔍 Key Concepts

• Gyrocompass error versus true north and magnetic north • How to convert from true course to gyro course (pgc) using known gyro error • Chartwork: plotting a course line from anchorage to buoy 29 on the provided chart

💭 Think About

• First, on the exam chart, plot the line from the anchorage position to York Spit Channel buoy 29 and determine the true course (°T) along that line • Identify from the exam data the gyro error and its direction (E or W) at the time of departure • Apply the correct relationship between true heading and gyro heading to convert your plotted true course to the proper course per gyrocompass

✅ Before You Answer

• Verify you are using the correct anchorage position and the correct York Spit Channel buoy 29 symbol on the chart • Double‑check the true course you measured with parallel rulers or a protractor against the chart’s compass rose • Confirm you applied the gyro error in the correct direction: remember how east vs. west error changes the gyro reading relative to true north before choosing your pgc value

Question 1 of 27070

What course per gyrocompass would you need to steer from the anchorage to York Spit Channel buoy "29"?

181° pgc

172° pgc

175° pgc

178° pgc