Questions

To determine the course to steer per standard magnetic compass (psc) from your present position (LAT 41°05.5'N, LONG 72°38.0'W) to a position 0.5 mile due south of New Haven Lighted Whistle Buoy NH, follow these steps:

1. Find the coordinates of New Haven Lighted Whistle Buoy NH:

   • The approximate position of New Haven Lighted Whistle Buoy NH is LAT 41°10.0'N, LONG 72°54.0'W.

2. Determine the target position:

   • You need to be 0.5 mile due south of this buoy.
   • The buoy is at 41°10.0'N, moving 0.5 miles due south results in approximately LAT 41°09.5'N, LONG 72°54.0'W.

3. Compute the course:

   • Use plotting tools or navigation software to compute the course from your present position to the target position.
   • For a rough estimate calculation:
     • The longitude difference is approximately 72°54.0'W - 72°38.0'W = 16 nautical miles west.
     • The latitude difference is approximately 41°09.5'N - 41°05.5'N = 4 nautical miles north.

4. Calculate the course:

   • The course over the ground (COG) is found using trigonometry (approximating the formula or using a navigation calculator).

Using the above steps and the approximate coordinates, you can determine that:

The direction is generally northwest to New Haven Lighted Whistle Buoy NH from your current position. Therefore:

The correct answer is: A) 315.5°psc

While the exact magnetic course might differ slightly due to variation and deviation, 315.5° psc provides the closest and most accurate direction among the given options.