Narrative:

Departed dfw behind a B737-800; a winglet aircraft. On the RNAV departure climbing through approximately 10000 ft we had our first encounter with wake turbulence form the winglet B737 with light turbulence and a 25-30 degree uncommanded roll. TCAS had the B737 10 miles ahead and higher. Later in the climb; and I think we were on fort worth center; we were asked what rate are we climbing at. I said 800-1000 FPM. While climbing through FL255 cleared up to FL320 we were asked if we could be out of FL290 in 3 mins. A 3500 ft climb in 3 mins. I said I can't take a time to climb but I will take a turn. The controller came back in a very condescending and argumentative tone with 'you can't give me a time to climb; you can't climb at a thousand ft for 3 mins!' as the controller was saying this we got hit for a second time by the B737's wake with heavier turbulence than before and with two uncommanded 25-30 degree left rolls. The B737 was 11 miles ahead and 3 thousand ft above on TCAS. When the controller stopped talking; I said we are hitting the B737's wake; either give me a turn or be quiet! A 30 degree left turn was given and we continued to hit wake turbulence during turn. This controller's attitude was unacceptable. Had I accepted the time to climb and expedited my climb rate and decreased my airspeed and safety margin and then hit the wake turbulence and the uncommanded roll it would have been very difficult to control the aircraft and make my 3500 ft 3 min time to climb. I also think that the adverse wake turbulence of the B737-800 with winglets needs to be investigated further.

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Original NASA ASRS Text

Title: MD80 ENCOUNTERS WAKE TURBULENCE FROM B737-800 ON CLBOUT.

Narrative: DEPARTED DFW BEHIND A B737-800; A WINGLET ACFT. ON THE RNAV DEP CLBING THROUGH APPROX 10000 FT WE HAD OUR FIRST ENCOUNTER WITH WAKE TURBULENCE FORM THE WINGLET B737 WITH LIGHT TURBULENCE AND A 25-30 DEG UNCOMMANDED ROLL. TCAS HAD THE B737 10 MILES AHEAD AND HIGHER. LATER IN THE CLB; AND I THINK WE WERE ON FORT WORTH CTR; WE WERE ASKED WHAT RATE ARE WE CLBING AT. I SAID 800-1000 FPM. WHILE CLBING THROUGH FL255 CLRED UP TO FL320 WE WERE ASKED IF WE COULD BE OUT OF FL290 IN 3 MINS. A 3500 FT CLB IN 3 MINS. I SAID I CAN'T TAKE A TIME TO CLB BUT I WILL TAKE A TURN. THE CTLR CAME BACK IN A VERY CONDESCENDING AND ARGUMENTATIVE TONE WITH 'YOU CAN'T GIVE ME A TIME TO CLB; YOU CAN'T CLB AT A THOUSAND FT FOR 3 MINS!' AS THE CTLR WAS SAYING THIS WE GOT HIT FOR A SECOND TIME BY THE B737'S WAKE WITH HEAVIER TURBULENCE THAN BEFORE AND WITH TWO UNCOMMANDED 25-30 DEG L ROLLS. THE B737 WAS 11 MILES AHEAD AND 3 THOUSAND FT ABOVE ON TCAS. WHEN THE CTLR STOPPED TALKING; I SAID WE ARE HITTING THE B737'S WAKE; EITHER GIVE ME A TURN OR BE QUIET! A 30 DEG L TURN WAS GIVEN AND WE CONTINUED TO HIT WAKE TURB DURING TURN. THIS CTLR'S ATTITUDE WAS UNACCEPTABLE. HAD I ACCEPTED THE TIME TO CLB AND EXPEDITED MY CLB RATE AND DECREASED MY AIRSPEED AND SAFETY MARGIN AND THEN HIT THE WAKE TURBULENCE AND THE UNCOMMANDED ROLL IT WOULD HAVE BEEN VERY DIFFICULT TO CTL THE ACFT AND MAKE MY 3500 FT 3 MIN TIME TO CLB. I ALSO THINK THAT THE ADVERSE WAKE TURBULENCE OF THE B737-800 WITH WINGLETS NEEDS TO BE INVESTIGATED FURTHER.

Data retrieved from NASA's ASRS site as of May 2009 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.