If the pitch of the propeller is 19.7 feet,...

Question 1 / 2707066636eea28f7522a1c51b48d

Question 1 of 2707066636eea28f7522a1c51b48d

If the pitch of the propeller is 19.7 feet, and the revolutions per day are 86,178, calculate the day's run allowing 3% negative slip.

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Question 1 of 27070

If the pitch of the propeller is 19.7 feet, and the revolutions per day are 86,178, calculate the day's run allowing 3% negative slip.

🔍 Key Concepts

• Propeller pitch as theoretical distance traveled per revolution • How to convert feet per day to nautical miles per day • How to apply negative slip percentage to reduce the theoretical distance

💭 Think About

• First, if the propeller moves 19.7 feet per revolution, how many feet would the vessel theoretically travel in one day with 86,178 revolutions and zero slip? • Once you have the theoretical distance in feet, how do you apply a 3% negative slip—do you increase or decrease the distance? • After adjusting for slip, how do you convert the total distance in feet to nautical miles, knowing how many feet are in one nautical mile?

✅ Before You Answer

• Be sure you are using feet per revolution × revolutions per day to get feet per day before any conversions. • Confirm whether negative slip means the vessel travels more or less than the theoretical pitch distance. • When converting to miles, double-check whether the question expects nautical miles (6,076 ft) or statute miles (5,280 ft), and see which conversion leads to one of the answer choices.

Question 1 of 27070

If the pitch of the propeller is 19.7 feet, and the revolutions per day are 86,178, calculate the day's run allowing 3% negative slip.

311.4 miles

326.2 miles

279.2 miles

287.6 miles