An air carrier captain reported encountering wake turbulence from the preceding small transport on t...

Narrative:

While departing runway 26L; we encountered wake vortices's from a small transport that departed in front of us. We entered the vortices's right after takeoff and around 100 feet the airplane started to roll violently to the left and I corrected the rolling motion with right aileron. The wing leveled for a split second and then it rolled violently to the left again. I put full right aileron and the roll continued to roll left. We received the aural warning 'bank angle; bank angle'. The wings leveled and I continued the climb and eventually the RNAV departure without any other issues. When I finally got the wings leveled the aircraft had drifted way left of the centerline. We continued the climb in the wake until we reached snufy intersection. Tower didn't say anything to us about our drift or possible wake encounter so we just switched over to departure and continued on. I have been encountering these issues lately taking off out of atl but this was the first time this close to the ground. Tower is not allowing enough spacing between departures.

Original NASA ASRS Text

Title: An air carrier Captain reported encountering wake turbulence from the preceding small transport on takeoff from ATL. The reporter alleged having this problem out of ATL in the past; in his opinion because of insufficient spacing.

Narrative: While departing Runway 26L; we encountered wake vortices's from a small transport that departed in front of us. We entered the vortices's right after takeoff and around 100 feet the airplane started to roll violently to the left and I corrected the rolling motion with right aileron. The wing leveled for a split second and then it rolled violently to the left again. I put full right aileron and the roll continued to roll left. We received the aural warning 'bank angle; bank angle'. The wings leveled and I continued the climb and eventually the RNAV departure without any other issues. When I finally got the wings leveled the aircraft had drifted way left of the centerline. We continued the climb in the wake until we reached SNUFY Intersection. Tower didn't say anything to us about our drift or possible wake encounter so we just switched over to departure and continued on. I have been encountering these issues lately taking off out of ATL but this was the first time this close to the ground. Tower is not allowing enough spacing between departures.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	855017
Time
Date	200910
Local Time Of Day	1801-2400
Place
Locale Reference	ATL.Airport
State Reference	GA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 200 ER/LR (CRJ200)
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Route In Use	SID RNAV N/S
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Wake Vortex Encounter

An air carrier captain reported encountering wake turbulence from the preceding small transport on takeoff from atl. The reporter alleged having this problem out of atl in the past; in his opinion because of insufficient spacing.