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A propeller conversion is one of the smartest investments you can make for your aircraft. Hartzell Propeller’s Top Prop STC Conversion program makes propeller conversion easy. Top Prop allows you to upgrade to our innovative new designs featuring scimitar blades, blended airfoils, and rugged structural composite materials.

With Top Prop from Hartzell Propeller, it’s easy to significantly improve the performance of your aircraft. You will experience real benefits such as shorter take-off distances, lower noise levels, better ground clearance, reduced tip erosion, increased climb rates, increased cruise speeds, and smoother operation.

It’s what you can expect from Hartzell the market leader in quality, performance, and support in general aviation.

Click to look at the full Hartzell Top Prop Performance Conversions Catalog

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Beechcraft

Hartzell propellers have been the preferred choice of Beechcraft on their entire line of piston and turboprop propellers for over 15 years.
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Cessna

When you’re in the market for the best propeller available for your Cessna, Hartzell Top Prop has a solution for you.
Piper

Piper

Piper Aircraft offers some of the best aviation values in the sky. See how a new Top Prop performance propeller conversion can make it better.
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Mooney

Mooney airplanes are all about performance. A Top Prop Performance conversion kit will take it to the next level.
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Pilatus

Since introducing the Hartzell five-blade composite swept tip prop specially designed for the Pilatus PC-12 turboprop fleet, flyers are delighted with the results.
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Daher

Hartzell’s high-performance, structural composite propellers are flying on roughly 30% of the entire Daher TBM fleet after just a few years on the market.
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Others

It is our goal at Hartzell to offer great solutions for all your after-market propeller needs, regardless of the model.

Click on any of the links below for further information:

STC Compatibility: Is your STC compatible with another STC?
Warranty: The Hartzell warranty is one of the best in the business.
Foreign Approvals: Hartzell is officially recognized by aviation authorities all over the world.
STC ICA / Maintenance Data:  Hartzell maintains a library of  ICA/maintenance data for your STC’d propeller.
STC Installation Data:  Hartzell maintains installation data for STC kits.
Performance Changes: How will your new Hartzell prop affect performance?
What Else is in the Kit: See what else is included with your propeller and spinner.

Hartzell Propeller