The following questions are based on Chart 13205TR, Block Island Sound, and the supporting publications. Your vessel draws 8 feet (2.4 meters) Your height of eye is 20 feet (6.1 meters). Gyro error is 3°E Variation is 15°W "Per standard magnetic compass" is abbreviated "psc" “Per gyrocompass” is abbreviated “pgc”

DEVIATION TABLE
Magnetic Heading Deviation
000° 1.5°E
030° 2.5°W
060° 2.5°W
090° 2.0°W
120° 1.0°W
150° 0.5°W
180° 0.0°
210° 1.0°E
240° 1.5°E
270° 2.0°E
300° 1.0°E
330° 0.5°W

At 0630, you pass Buoy "PI" close abeam on the starboard side. You are steering 078°T and are headed directly toward Race Rock Light. At 0654, Little Gull Island Light is bearing 207°T and Race Rock Light is bearing 072°T. What is your 0654 position?

Question

The following questions are based on Chart 13205TR, Block Island Sound, and the supporting publications. Your vessel draws 8 feet (2.4 meters) Your height of eye is 20 feet (6.1 meters). Gyro error is 3°E Variation is 15°W "Per standard magnetic compass" is abbreviated "psc" “Per gyrocompass” is abbreviated “pgc”

DEVIATION TABLE
Magnetic Heading    Deviation
000°                       1.5°E
030°                       2.5°W
060°                       2.5°W
090°                       2.0°W
120°                       1.0°W
150°                       0.5°W
180°                       0.0°
210°                       1.0°E
240°                       1.5°E
270°                       2.0°E
300°                       1.0°E
330°                       0.5°W

At 0630, you pass Buoy "PI" close abeam on the starboard side. You are steering 078°T and are headed directly toward Race Rock Light. At 0654, Little Gull Island Light is bearing 207°T and Race Rock Light is bearing 072°T. What is your 0654 position?

Accepted Answer

LAT 41°14.0'N, LONG 72°05.3'W

Answer

LAT 41°14.7'N, LONG 72°06.8'W

Answer

LAT 41°13.6'N, LONG 72°03.3'W

Answer

LAT 41°19.0'N, LONG 72°05.2'W

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