Swept Blade Turbofan




Raisbeck Engineering and Hartzell Propeller have teamed to develop and certify the firstbusiness aviation turbine propeller using practical swept-wing theory as an integral part of its design.

The effort has culminated in the FAA certification of the Raisbeck/Hartzell Swept Blade Turbofan Propeller for the King Air 250. The new Swept Blade Propeller has been added to Raisbeck Engineering’s Airplane Flight Manuals, making it compatible with all combinations of Raisbeck performance systems for these aircraft, and carrying with it all these systems’ FAA-approved increased performance levels.

If you want the most out of your aircraft, couple the Swept Blade Prop with our EPIC PLATINUM package to create the best performing King Air 250 in the field. 


Technical Docs

See technical docs for more detailed information. Click here.

Swept Blade Technical Notes

Read about the development of the new Swept Blade Props, based on swept-wing technology.  Click here

Click here to see all System Pricing.




System Benefits:
  • Bigger and more powerful design produces more thrust
  • Impressive ramp presence
  • You can feel the improved acceleration when you apply the power
  • They provide over 1,090 feet improvement in FAA published takeoff performance, in contrast to the factory standard propeller*
  • The sweep allows for a larger diameter prop with an increase in thrust, while providing noticeably lower cabin noise
  • They are built with proven and affordable aluminum construction by Hartzell, Propeller the leader in General Aviation propeller manufacturing
  • They represent the latest in propeller technology jointly developed by Raisbeck Engineering and Hartzell Propeller
  • TBO 4000 hours/6 years
* When combined with the Raisbeck EPIC PLATINUM Performance Package including Dual Aft Body Strakes, Ram Air Recovery System and Enhanced Performance Leading Edges on 200/B200/B200GT King Airs

Technology Benefits:
  • Unique combination of aerodynamic technology and computer-aided manufacture
  • Lightweight aluminum hubs and blades
  • Oversized hydraulic power piston for lock-in propeller synchrophasing
  • Grease-lubricated hubs to preclude oil leaks
  • Manufactured by Hartzell Propeller, Inc.

Performance Data

The new Swept Turbofan Propellers provide unparalleled performance increases across the entire flight envelope for every 200-Series King Air ever built.

Download a brochure with the performance data

Additional Resources



  • 200-Series Swept Blade Turbofan Propellers

    Discover the Wave of the Future! Raisbeck's Swept Blade Turbofan Propellers for 200-Series King Airs deliver exceptional performance and stunning ramp presence. 

  • Swept Blade Turbofan Propellers
  • Ram Air Recovery System

    Wonder why Beechcraft made Raisbeck's Ram Air Recovery System OEM-standard on its 250 production line? This movie demonstrates the performance improvements and FOD-protection benefits of the system for all 200-series King Airs.

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  • Dual Aft Body Strakes

    Get the inside scoop on Raisbeck's Dual Aft Body Strakes: how they improve directional stability, ride quality and handling characteristics of all King Air models while improving climb and cruise performance.

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  • Fully Enclosed High-Flotation Gear Doors

    Observe for yourself how Raisbeck's Fully-enclosed High Flotation Gear Doors keep wheel wells, tires and brakes protected from the elements and restore the climb and cruise performance lost to High Float Gear.

  • hfgd video thumbnail
  • Crown Wing Lockers

    How much can you pack into 16 cubic feet of external, watertight cargo space? Up to 600 pounds in Raisbeck's Crown Wing Lockers, which can easily handle skis, golf bags and other gear.

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  • The Raisbeck Wing for the New Millennium

    Don't miss this classic video in its "Millennium" edition! Updated in 2000, it's the last of a series of annual "video newsletters" presenting the entire line of Raisbeck Performance Systems for King Airs and people who fly them.

  • millennium video thumbnail