Chart Navigation & Plotting · Speed-Time-Distance — 3-Minute Rule
By the three-minute rule, a vessel making 15 knots travels approximately how many yards in 3 minutes?
- A150 yards
- B1,500 yards✓ Correct
- C750 yards
- D3,000 yards
Explanation
The three-minute rule: distance in yards ≈ speed in knots × 100. 15 × 100 = 1,500 yards in 3 minutes.
Authority: Bowditch, American Practical Navigator (Pub. No. 9)
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