July 2024 AM TCN

Q.1) A vessel Steering compass course observes the following bearings at 1900 hrs:
Govan’s Head Point (37) (51° 35.8’N, 004° 55.4’W) – 257° C
Caldey Is. Lt. (51° 37.9’N, 004° 41.0’W) – 077° C  
Same time i.e. at 1900 hrs St. Govan Lt. Vessel (51° 30.6’N, 004° 59.7’W) – 30° on starboard bow. At 1930 hrs finds the same Lt. Vessel 60° on her starboard bow. Find the position of the vessel at 1900 hrs and the compass course steered by the vessel.

Answer:

Vessel Position: 51°37’N; 004°46.9’W
CTS – 200°T
Variation – 2° W
Deviation card No 3
Magnetic CTS – 198° T

From Deviation Table:
190° Deviation – 0.8° W
200° Deviation – 0.5° W

198° Deviation – 0.6° W

Compass course to steer – 197.4° (C)

Q.2) A vessel was at anchor in position 51O 11.0’N, 004O 49.4’W. At 2300 hrs, she picked up her anchor and sailed on a course 131O(T). At 2320 hrs South Lundy Island Light was first sighted and at 2350 hrs North Lundy Island Light was just obscured. Find, CMG, SMG, Engine speed and position of the vessel at 2350 hrs, if current was setting Sw’ly at 3 kts throughout.

Answer:

CMG – 148°T
SMG – 9.6 Kts
Engine Speed – 9.4 Kts
Position at 2350 Hrs – 51°04.2’N; 004°42.6’W

Q.3) A general cargo ship having a draft of 9.5m drops pilot at Bristol Pilot Grounds (51O 21’N, 003O
19’W) in gale force winds and is bound for Bideford Fairway (51O 05’N, 004O 16.4’W). Vessel is equipped with Radar, ARPA, AIS, GPS and Echo Sounder & Doppler Log. Plan a safe passage for the intended voyage. Vessel should be kept at least four miles away from the coast during the passage. Plot your courses on the chart, with clear marking of courses and distance and course alteration point for each leg of passage. Write the synopsis of passage planning in the answer sheet.

Plan the Passage as per Question