If the pitch of the propeller is 21.3 feet,...

Question 1 of 2707066636eea28f7522a1c51b492

If the pitch of the propeller is 21.3 feet, and the revolutions per day are 126,214, calculate the day's run allowing 4% positive slip.

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Question 1 of 27070

If the pitch of the propeller is 21.3 feet, and the revolutions per day are 126,214, calculate the day's run allowing 4% positive slip.

🔍 Key Concepts

• Propeller pitch as the theoretical distance advanced in one revolution (in feet) • Converting feet per day to nautical miles per day using 1 nautical mile = 6,076 feet • Meaning of positive slip and how it changes the theoretical distance run

💭 Think About

• First, if the propeller advanced exactly its pitch every revolution with no slip, what would be the total distance in feet for 126,214 revolutions? • After finding this theoretical distance, how does a 4% positive slip affect the actual distance traveled: does it make the distance greater or smaller than the theoretical value? • Once you have the corrected distance in feet, how do you convert that to miles, and which kind of miles are most likely being used in a day’s run at sea?

✅ Before You Answer

• Be sure you apply the 4% slip to the correct distance (the theoretical, no-slip distance) and in the correct direction (increase vs. decrease). • Confirm you are using nautical miles (6,076 ft) rather than statute miles (5,280 ft) unless clearly indicated otherwise. • Double-check all unit conversions and rounding to see which choice most closely matches your computed value.