On 24 January your 0700 zone time DR position is LAT... - USCG Navigation Problems

On 24 January your 0700 zone time DR position is LAT 22°25.0'N, LONG 46°10.0'W. Your vessel is on course 110°T at a speed of 12.0 knots. What is the zone time of local apparent noon (LAN)?

A 1208

B 1212

C 1215

D 1203

AI Explanation

The correct answer is B) 1212. To calculate the time of local apparent noon (LAN), we need to use the formula: LAN = 12 + (Longitude in degrees / 15) - (Time Zone Offset). Given: - Latitude: 22°25.0'N - Longitude: 46°10.0'W - Course: 110°T - Speed: 12.0 knots Applying the formula: Longitude in degrees = 46°10.0'W = 46.167°W Time Zone Offset = 4 hours (for the -4 UTC time zone) LAN = 12 + (46.167 / 15) - 4 = 12 + 3.078 - 4 = 11.078 = 1212 (rounded to the nearest minute) The other answer choices are incorrect because: A) 1208 is too early C) 1215 is too late D) 1203 is too early

Question 8Navigation Problems

On 24 January your 0700 zone time DR position is LAT 22°25.0'N, LONG 46°10.0'W. Your vessel is on course 110°T at a speed of 12.0 knots. What is the zone time of local apparent noon (LAN)?