Ram Air Recovery System



By making the airflow to the engine more efficient, the Ram Air Recovery System (OEM standard on new King Air 250s) decreases ITT 18° at equal torque, prevents FOD and increases all weather capability.




Technical Docs

See technical docs for more detailed information. Click here.

Want to see more info on our EPIC Packages? Click here to learn more about the systems in detail and the pricing.

Click here to see all System Pricing.




System Benefits:
  • Significantly improved climb and cruise performance with ice vanes stowed or deployed
  • 18º cooler engine ITT at equal torque
  • 8% increase in available horsepower
  • 8% to 11% block fuel savings *
  • Ice vanes may be deployed at any time including taxi and takeoff when at OATs up to ISA +27ºC *
* As part of an EPIC package. 

EPIC System Benefits:

Maximum performance gains from the Ram Air Recovery System are obtained when paired with Hartzell/Raisbeck Quiet Turbofan Propellers which, because their twist extends all the way to the spinner, drives high-pressure air into the engine inlet.

Want to see more info on our EPIC Packages? Choose your King Air Model to learn more about the systems in detail and the pricing.


Technology Benefits:
  • Developed and tested in conjunction with Pratt & Whitney of Canada, Ltd
  • FAA-Certified for ice-vane deployment on the ground and in the air
  • Utilizes coanda-effect aerodynamics for efficient airflow vectoring
  • Full inlet plenum sealing through unique full-body diaphragms
ITT Reduction:
  • Utilizes coanda-effect aerodynamics for efficient airflow vectoring
  • Full inlet plenumsealing through unique full-body diaphragms
Reduce Torque loss with ice vanes deployed:

The Raisbeck-patented Ram Air Recovery System maximizes the air to the engine inlet so that your engine retains the same power with ice vanes deployed that you get now with the ice vanes stowed. Your aircraft retains speed and power as you climb through clouds or inclement weather. With ice vanes stowed, you experience increased power and speed, and you save fuel—all at lower engine temperatures.

Protect against Foreign Object Damage (FOD):

When Hartzell/Raisbeck Quiet Turbofan Propellers or any EPIC package, ice vanes may be deployed at any time—including on the ground, during takeoff, and for landing—when at OATs up to ISA +27oC. Use of ice vanes on RARS-equipped aircraft on the ground and during takeoff and landing minimizes the risk of foreign object damage. For this reason, the United States Army has equipped its entire C12 fleet with the Raisbeck Ram Air Recovery System.

Additional Resources



  • King Air 200/B200 EPIC Performance Packages

    Learn about Raisbeck's synergistic EPIC Performance Packages for 200-Series King Airs and, in their own words, why our customers love them.

  • 200-b200 epic video thumbnail
  • Quiet Turbofan Propeller System - The Power Props

    Experience for yourself Raisbeck's incredibly quiet, performance-enhancing Power Props from takeoff to touchdown.

  • tfps video thumbnail
  • 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.

  • rars video thumbnail
  • 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.

  • dabs video thumbnail
  • 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.

  • cwls video thumbnail
  • 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