The propeller on a vessel has a diameter of...

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Question 1 of 2066636eea28f7522a1c51b4f9

The propeller on a vessel has a diameter of 18.8 feet and a pitch of 21.4 feet. What would be the slip if the vessel cruised 378 miles in a 24 hour day (observed distance) at an average RPM of 76?

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66636eea28f7522a1c51b4f9

The propeller on a vessel has a diameter of 18.8 feet and a pitch of 21.4 feet. What would be the slip if the vessel cruised 378 miles in a 24 hour day (observed distance) at an average RPM of 76?

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🔍 Key Concepts

• Propeller pitch as the theoretical distance advanced in one revolution • How to find theoretical distance run from pitch, RPM, and time • Definition and sign convention for slip % (positive vs negative slip)

💭 Think About

• First, compute how many propeller revolutions occur in 24 hours at the given RPM, then multiply by the pitch to find the theoretical distance—are your units consistent? • Compare the theoretical distance to the observed distance (378 miles). Is the vessel actually going farther or less than the theoretical value? • When the observed distance is greater than the theoretical distance, what sign (positive or negative) should the slip percentage have?

✅ Before You Answer

• Convert 24 hours to minutes before using RPM (revolutions per minute) • Make sure you convert feet to miles (or miles to feet) so both distances are in the same unit before finding slip % • Use the standard slip formula: Slip % = (Theoretical − Observed) / Theoretical × 100 and then decide which sign matches your situation

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Question 1 of 2066636eea28f7522a1c51b4f9

The propeller on a vessel has a diameter of 18.8 feet and a pitch of 21.4 feet. What would be the slip if the vessel cruised 378 miles in a 24 hour day (observed distance) at an average RPM of 76?

Back

Question 1 of 20

66636eea28f7522a1c51b4f9

The propeller on a vessel has a diameter of 18.8 feet and a pitch of 21.4 feet. What would be the slip if the vessel cruised 378 miles in a 24 hour day (observed distance) at an average RPM of 76?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed