Description
Michigan Wheel 13 X 21 A3r Prop | Boat Supply Store
This 13-inch diameter by 21-inch pitch A3r propeller from Michigan Wheel is engineered for enhanced thrust and optimal engine performance. It features a durable aluminum construction designed to withstand rigorous marine conditions, improving acceleration and top-end speed. Ideal for augmenting a variety of outboard applications where increased power delivery is paramount.
Key Features
- Maximize thrust with its 13" diameter.
- Achieve efficient cruising with a 21" pitch.
- Enhance acceleration and top-end speed.
- Durable aluminum construction for longevity.
- Designed for improved engine responsiveness.
- A3r blade geometry for optimal water flow.
- Engineered for a wide range of outboard motors.
- Reliable performance in diverse marine environments.
Specifications
| Product Specifications | |
|---|---|
| Diameter | 13 inches |
| Pitch | 21 inches |
| Material | Aluminum |
| Blade Count | 3 |
Who This Is For
This propeller is designed for boaters seeking to optimize their outboard engine's power output for better acceleration and speed. It is particularly suitable for those who frequently navigate varying water conditions and demand consistent performance from their vessel.
How It Compares
| Feature | Michigan Wheel 13 X 21 A3r Prop | Solas |
|---|---|---|
| Diameter | 13 inches | — |
| Pitch | 21 inches | — |
| Material | Aluminum | Aluminum |
| Blade Count | 3 | 3 |
Common Concerns Answered
Will this propeller fit my specific outboard model?
Consult your outboard motor's service manual or our fitment guide to confirm compatibility with the 13" x 21" A3r propeller specifications.
How will this propeller affect my boat's handling?
A propeller with a 21" pitch generally offers a balance between acceleration and top speed, potentially improving hole shot and mid-range cruise. Performance can vary based on boat hull design and engine characteristics.
Is this propeller suitable for saltwater environments?
The aluminum construction is designed for marine use, but regular rinsing with fresh water after saltwater operation is recommended to prevent corrosion and maintain performance.
Frequently Asked Questions
What is the primary benefit of an A3r propeller design?
The A3r design typically incorporates specific blade contours and rake angles to improve hydrodynamic efficiency, leading to better thrust and fuel economy.
How does a 21-inch pitch compare to other pitches?
A 21-inch pitch means the propeller advances approximately 21 inches through the water with each full revolution. Higher pitches generally provide higher top speeds, while lower pitches offer better acceleration.
What is the recommended RPM range for this propeller?
The optimal RPM range for this propeller depends on your specific outboard engine's power curve and boat's weight. It's advisable to check your engine's WOT (Wide Open Throttle) RPM range against the propeller's capabilities.
Can this propeller be used with a motor that requires a specific number of splines?
Propeller shaft spline count is a critical fitment factor. Ensure this propeller's spline count matches your outboard's drive shaft splines for secure engagement and proper power transfer.
What maintenance is required for this aluminum propeller?
Regular inspection for dings, bends, or corrosion is recommended. Cleaning with a mild detergent and fresh water, followed by a light application of marine grease on the prop shaft, will help preserve its condition.
