Regional Jet 200 ER/LR (CRJ200)
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 100
Inflight Event / Encounter Wake Vortex Encounter
General None Reported / Taken
Procedure; Environment - Non Weather Related
After taking off behind an Airbus 321; we encountered its wake causing a significant rolling action right then left 20-25 degrees. The FO was pilot flying and disconnected the autopilot but the encounter ceased. This occurred after being cleared to takeoff before the aircraft ahead had rotated from the runway. We encountered their wake around 1100-1300 AGL.This is caused by ATL clearing aircraft for takeoff while the aircraft ahead is still on the takeoff roll. Despite having different courses and being legal; we frequently encounter wake of varying intensities and I often feel it's only a matter of time before a dangerous/ fatal wake encounter occurs.Either separate aircraft more or change the departure headings to help reduce wake encounters. This happens frequently though this encounter was more severe than normal. The aircraft was fighting the roll right then left with a lot of aileron and if we had encountered a stronger wake; we may have had difficulty controlling the aircraft.
Reporter stated he has experienced frequent wake encounters in ATL.
CRJ-200 Captain reported encountering wake turbulence departing ATL in trail of an A321.