If the pitch of the propeller is 25.1 feet,...

Question 1 / 2066636eea28f7522a1c51b499

Question 1 of 2066636eea28f7522a1c51b499

If the pitch of the propeller is 25.1 feet, and the revolutions per day are 91,591, calculate the day's run allowing 7% positive slip.

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Question 1 of 20

66636eea28f7522a1c51b499

If the pitch of the propeller is 25.1 feet, and the revolutions per day are 91,591, calculate the day's run allowing 7% positive slip.

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🔍 Key Concepts

• Propeller pitch as theoretical advance per revolution (in feet) • How to apply percent slip to reduce the theoretical distance made good • Converting total distance in feet per day to miles per day (decide if the exam expects nautical miles and the proper feet-per-mile value)

💭 Think About

• First, find the theoretical distance the ship would travel in one day with no slip using pitch and total revolutions. What is the formula? • Next, apply the 7% positive slip. Does positive slip mean the vessel travels more or less than the theoretical distance? How do you adjust the distance using 7%? • After adjusting for slip, convert the final distance in feet to miles. Which feet-per-mile value is appropriate for this type of navigation exam problem?

✅ Before You Answer

• Be sure you multiply pitch (ft/rev) by total revs per day before adjusting for slip • Apply slip as a percentage of distance (e.g., multiply by (1 − 0.07) or (1 + 0.07) depending on what positive slip means in this context) • Use a consistent conversion from feet to nautical miles (check whether the exam typically uses 6080 ft per nautical mile).

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Question 1 of 20

If the pitch of the propeller is 25.1 feet, and the revolutions per day are 91,591, calculate the day's run allowing 7% positive slip.

404.6 miles

351.6 miles

378.1 miles

390.0 miles

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Question 1 / 2066636eea28f7522a1c51b499

Question 1 of 2066636eea28f7522a1c51b499

If the pitch of the propeller is 25.1 feet, and the revolutions per day are 91,591, calculate the day's run allowing 7% positive slip.

Back

Question 1 of 20

66636eea28f7522a1c51b499

If the pitch of the propeller is 25.1 feet, and the revolutions per day are 91,591, calculate the day's run allowing 7% positive slip.

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