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King Air C90GT/GTi/GTx


Dual Aft Body Strakes (DABS)

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What do they do?

Raisbeck's Dual Aft Body Strakes improve directional stability, passenger ride quality, pilot control and aircraft handling characteristics as well as climb and cruise performance. Wing/body vortices normally disrupt airflow under the aft fuselage, creating drag. Dual Aft Body Strakes eliminate this separation, channeling the vortices and accelerating the air–in effect, pushing the airplane through the air. Factory-installed on all new King Air 350s.


  • Improved directional stability and pilot control
  • Reduced drag in all flight modes
  • Improved passenger ride quality
  • Quieter cabin and cockpit
  • Increased climb and cruise performance
  • Inherently reduced minimum control airspeed


  • Classic Beech ventral fin is removed
  • The shedding wing/body vortices are captured under the aft fuselage pressurizing and reducing aft-body drag resulting coanda-effect attaches the aft-body airflow
  • Equivalent vertical tail area is increased