You are turning 85 RPM, with a propeller...

Question 1 / 2066636eea28f7522a1c51b6f9

Question 1 of 2066636eea28f7522a1c51b6f9

You are turning 85 RPM, with a propeller pitch of 19 feet, and an estimated slip of +3%. What is the speed of advance?

Back

Question 1 of 20

66636eea28f7522a1c51b6f9

You are turning 85 RPM, with a propeller pitch of 19 feet, and an estimated slip of +3%. What is the speed of advance?

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

• Relationship between RPM, pitch, and theoretical speed (no slip) • How to convert feet per minute to knots • Effect of positive slip percentage on speed of advance

💭 Think About

• First, find how many feet the propeller would advance in one minute at 85 RPM with a 19-foot pitch, assuming no slip. What simple multiplication gets you that? • Next, convert that theoretical feet-per-minute speed into knots. What conversion factor links feet per minute to knots? • Finally, apply the +3% slip to reduce your theoretical speed. How do you adjust a value when you know the percentage loss?

✅ Before You Answer

• Be sure you treat +3% slip as a reduction in speed, not an increase • Confirm your unit conversions: minutes to hours and feet to nautical miles • After adjusting for slip, check which option is closest to your calculated knots

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

Quick actions

— No credit card needed

Question 1 of 20

You are turning 85 RPM, with a propeller pitch of 19 feet, and an estimated slip of +3%. What is the speed of advance?

14.7 knots

17.1 knots

16.4 knots

15.5 knots

Loading interactive features...