USCG USCG NAV
Set 9 • Question #241 of 247
Launch Interactive Practice Room At 1930, your vessel is between York River Entrance Channel Lighted Buoys "1YR" and "2". From this position, you change course to 142°pgc at an engine speed of 8.0 knots. At 2001, you obtain the following information: Chesapeake Channel Tunnel North Light - 131°pgc; Thimble Shoal Light - 248°pgc What were the set and drift between 1930 and 2001?
A
127° at 0.5 knot
✓ Correct Answer
B
127° at 1.1 knot
C
307° at 1.1 knot
D
307° at 0.5 knot
USCG NMC Regulatory Explanation
In practical navigation calculations and chart plotting regarding 'At 1930, your vessel is between York River Entrance Channel Lighted Buoys "1YR" and "2". From this position, you change course to 142°pgc at an engine speed of 8.0 knots. At 2001, you obtain the following information: Chesapeake Channel Tunnel North Light - 131°pgc; Thimble Shoal Light - 248°pgc What were the set and drift between 1930 and 2001', the calculated solution is: '127° at 0.5 knot'.
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