You are turning 84 RPM, with a propeller...

Question 1 of 2707066636eea28f7522a1c51b6f8

You are turning 84 RPM, with a propeller pitch of 22 feet, and an estimated slip of 0%. What is the speed of advance?

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Question 1 of 27070

Q

You are turning 84 RPM, with a propeller pitch of 22 feet, and an estimated slip of 0%. What is the speed of advance?

🔍 Key Concepts

• Relationship between RPM, propeller pitch, and speed of advance • How to convert feet per minute to knots • Meaning of 0% slip when calculating theoretical speed

💭 Think About

• First find how many feet per minute the vessel would move with 84 RPM and 22 ft pitch, assuming no slip • Convert that speed from feet per minute to nautical miles per hour (knots) using the correct unit conversions • Compare your calculated speed in knots to the choices and see which is closest

✅ Before You Answer

• Verify that 0% slip means using the full pitch distance each revolution with no reduction • Be sure to convert minutes to hours and feet to nautical miles correctly before comparing to choices • Double-check that you used RPM (per minute) and not mistakenly treated it as per hour in your calculation