B737-300 ENCOUNTERS WAKE TURB FROM A DEPARTING A320 AT DTW; MI.

Narrative

ENCOUNTERED SEVERE WAKE TURB AT 200 FT AGL ON TKOF BEHIND AN AIRBUS (EQUIVALENT IN SIZE TO A B737; I BELIEVE THIS IS AN A320). THERE WAS NORMAL TKOF SPACING BEHIND THIS NON-HVY ACFT. AT 200 FT WE ENCOUNTERED WAKE THAT REQUIRED FULL R AILERON TO COUNTER. EVEN THOUGH TOTAL ROLL TO L WAS ONLY APPROX 15 DEGS TO L THE ACCELERATION WE FELT WAS VERY PRONOUNCED! WITHOUT IMMEDIATE AILERON INPUT THE ROLL TO THE L WOULD HAVE BEEN MUCH MORE SEVERE. EVEN THE FLT ATTENDANT INQUIRED IMMEDIATELY AFTER TO SEE IF EVERYTHING WAS OKAY. THE EXPERIENCE MADE ME A FIRM BELIEVER THAT IT DOESN'T TAKE A 'HVY' TO CAUSE SEVERE WAKE TURB IF YOU HIT IT JUST RIGHT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THIS RPTR TOOK PART IN THE STRUCTURED CALLBACK FOR WAKE TURB. THE RPTR HAD A SHORT DURATION JOLT OF WAKE TURB ON DEPARTING DTW. HE APPLIED FULL AILERON IN THE OPPOSITE DIRECTION OF THE ROLL; BUT THE ACFT STILL ROLLED IN THE OPPOSITE DIRECTION. THE ENCOUNTER LASTED ONLY 5-6 SECONDS BUT WAS DISTURBING TO THE FLC; AS THEY FEEL THAT HAD THEY NOT BEEN ON THE FLT CTLS TO RESPOND IMMEDIATELY; THE ACFT WOULD HAVE ROLLED TO A LARGER BANK. EVEN THE FLT ATTENDANTS INQUIRED AS TO THE STATUS OF THE ACFT AFTER THE JOLT OF TURB.