Raisbeck/Hartzell Swept Blade Propellers

All Additional Upgrades

Raisbeck/Hartzell Swept Blade Propellers

4- blade (aluminum) and 5- blade (composite) props

Designed by Raisbeck Engineering and manufactured by Hartzell, the Raisbeck Swept Blade Turbofan Propellers for the King Air utilize unique swept-wing technology designed to increase thrust while reducing noise and vibration.

Upgrades Available For

  • King Air 200
  • King Air 300
  • King Air 350/350ER
  • King Air 90

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  • Larger 96 to 106-inch diameter (depending on model) develops more thrust without increasing noise or vibration for a quieter cabin
  • Increased thrust at lower RPMs
  • Increased performance from takeoff to landing
  • Improved runway acceleration and landing deceleration
  • Certified worldwide to meet the most stringent regulations and noise requirements
  • Trouble-free operation between 6-year, 4,000-hour overhauls


  • Unique combination of aerodynamic technology and computer-aided manufacturing
  • Full 30° blade sweep increases prop diameter for greater thrust without added noise of vibration
  • Oversized hydraulic power piston to lock in propeller synchrophasing
  • Grease-lubricated hubs to preclude oil leaks
  • 4-blade aluminum propellers are certified for the King Air 200, 300, and 350
  • Lightweight 5-blade composite swept blade propellers are available for the King Air 200/300/350

Upgrade Includes

  • Two 4- or 5-blade propellers
  • Two aluminum spinners
  • Airplane flight manual supplement
  • Installation instructions
  • Instruction for continued airworthiness
  • Operation and installation manual

BOOST YOUR Performance

Contact us today to learn how a Raisbeck Swept Blade Turbofan Propeller upgrade can boost your performance, comfort, and bottom line.