1. What is Propeller Pitch?

Propeller pitch is the distance a propeller would move in one revolution if it were moving through a soft solid medium, like a screw through wood. It's a crucial parameter in propeller design and performance.

2. How Does the Calculator Work?

The calculator uses the fundamental pitch equation:

Where:

• \( Advance \) — Distance traveled by the propeller (meters)
• \( Revolutions \) — Number of rotations (rev)

Explanation: The pitch represents how far the propeller would advance in one complete revolution if there were no slip.

3. Importance of Pitch Calculation

Details: Proper pitch calculation is essential for propeller selection, ensuring optimal engine performance, fuel efficiency, and achieving desired boat or aircraft speed.

4. Using the Calculator

Tips: Enter the advance distance in meters and the number of revolutions. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between geometric pitch and effective pitch?
A: Geometric pitch is theoretical (no slip), while effective pitch accounts for slip in real-world conditions.

Q2: How does pitch affect performance?
A: Higher pitch generally means higher top speed but slower acceleration. Lower pitch improves acceleration but reduces top speed.

Q3: What is pitch typically measured in?
A: For marine propellers, pitch is usually measured in inches or meters per revolution. Aircraft propellers often use inches.

Q4: How does pitch relate to propeller diameter?
A: Pitch and diameter work together to determine propeller performance. Generally, larger diameters can handle higher pitches.

Q5: Can I use this for both boat and aircraft propellers?
A: Yes, the fundamental pitch calculation is the same, though aircraft propellers often have variable pitch mechanisms.