You are turning 100 RPM, with a propeller pitch of 25 feet, and an estimated slip of - 5%. What is the speed of advance?
Official USCG Answer & Rule Citation
Correct Answer: Option A — 25.9 knots
Negative slip increases theoretical advance by the specified percentage. Multiplying 100 RPM by a 25-foot pitch and adjusting upward by 5% negative slip produces a speed of advance equal to 25.9 knots.
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