Narrative:

We were assigned an intersection takeoff from runway 33 at intersection T10. Ahead of us was an airbus (319 or 320) that received the same clearance. As the airbus began its takeoff roll we were cleared to line up and wait. The captain stopped the airplane on the runway and transferred the controls to me after we verified the correct runway heading. After the airbus had departed and climbed to a distance of what seemed to be routine separation for departing aircraft; we were given a takeoff clearance. We proceeded with a normal takeoff (reduced thrust). Shortly after rotation (approximately 50 AGL); I felt the aircraft roll strongly to the right and immediately recognized the force as wake turbulence. Immediately as I began to correct with aileron; the stick shaker engaged for less than 1 second and I responded with brisk but slight forward pressure on the yoke. By no means were we at an unusually high angle of attack; and our airspeed was increasing normally before we encountered the wake turbulence.the sole cause of the stick shaker activation was wake turbulence from the departing airbus ahead of us. As mentioned above; I believe that the separation provided for us behind that traffic was not less than ordinarily provided at ord. The light winds at the time of our departure most likely allowed the wingtip vortices the remainder over the runway for an extended period of time.increase awareness among pilots about the separation required behind departing aircraft; especially airbus 319/320s. This is not the first time I have experienced strong wake turbulence behind this type of aircraft; and it is deceiving because it is not considered a 'heavy' aircraft. It may be wise to use normal thrust takeoffs behind airbus 319/320 aircraft for this reason; and to allow extra separation to allow vortices to dissipate.

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Original NASA ASRS Text

Title: CRJ-200 First Officer reported the stick shaker was activated on initial climb out of ORD when they encountered wake turbulence in trail of an A319/320.

Narrative: We were assigned an intersection takeoff from runway 33 at intersection T10. Ahead of us was an Airbus (319 or 320) that received the same clearance. As the Airbus began its takeoff roll we were cleared to line up and wait. The Captain stopped the airplane on the runway and transferred the controls to me after we verified the correct runway heading. After the Airbus had departed and climbed to a distance of what seemed to be routine separation for departing aircraft; we were given a takeoff clearance. We proceeded with a normal takeoff (reduced thrust). Shortly after rotation (approximately 50 AGL); I felt the aircraft roll strongly to the right and immediately recognized the force as wake turbulence. Immediately as I began to correct with aileron; the stick shaker engaged for less than 1 second and I responded with brisk but slight forward pressure on the yoke. By no means were we at an unusually high angle of attack; and our airspeed was increasing normally before we encountered the wake turbulence.The sole cause of the stick shaker activation was wake turbulence from the departing Airbus ahead of us. As mentioned above; I believe that the separation provided for us behind that traffic was not less than ordinarily provided at ORD. The light winds at the time of our departure most likely allowed the wingtip vortices the remainder over the runway for an extended period of time.Increase awareness among pilots about the separation required behind departing aircraft; especially Airbus 319/320s. This is not the first time I have experienced strong wake turbulence behind this type of aircraft; and it is deceiving because it is not considered a 'heavy' aircraft. It may be wise to use normal thrust takeoffs behind Airbus 319/320 aircraft for this reason; and to allow extra separation to allow vortices to dissipate.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.