Chart Navigation & Plotting · Speed-Time-Distance — Fuel Range
With 800 gallons usable fuel burning 25 gallons per hour at 9 knots, the still-water range is about:
- A320 NM
- B200 NM
- C288 NM✓ Correct
- D32 NM
Explanation
Endurance = 800 ÷ 25 = 32 hours. Range = 32 h × 9 kt = 288 NM (a fuel reserve should still be deducted for planning).
Authority: Bowditch (Pub. No. 9), Voyage Planning
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