Jack Tar Notes
SPEED/POWER CHART
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7 knots
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17 SHP
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7.8 knots
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25 SHP
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8.4 knots
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30 SHP
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8.7 knots
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37 SHP
|
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9* knots
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45 SHP
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*This figure is the absolute maximum recommended
cruising speed. Speeds in excess of this figure require
inordinate increase in power and should not be
attempted.
All speeds are in knots per hour. To convert to miles
per hour, divide by .87. Horsepower is given as
constant 24-hour rated SHAFT HORSEPOWER (SHP); NOT
brake horsepower (BHP), nor intermittent ratings. It
makes no difference if the engine is diesel or gasoline
powered.
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Inches of immersion = 1" per each 1,118 lbs added.
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