Glasair III pilot reported a wake turbulence encounter departing lnc with a B737 inbound to another ...

Attributes
ACN	1420716
Time
Date	201701
Local Time Of Day	1201-1800
Place
Locale Reference	LNC.Airport
State Reference	TX
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Amateur/Home Built/Experimental
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Route In Use	Direct
Flight Plan	None
Aircraft 2
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Person 1
Function	Single Pilot Pilot Flying
Qualification	Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine Flight Crew Commercial
Experience	Flight Crew Last 90 Days 20 Flight Crew Total 1850 Flight Crew Type 450
Events
Anomaly	Aircraft Equipment Problem Less Severe Conflict Airborne Conflict Inflight Event / Encounter Wake Vortex Encounter
Miss Distance	Horizontal 3000 Vertical 500

Narrative:

After takeoff I performed a climbing right turn (right traffic for 31) to turn on course (south) to my destination. My plane climbs in excess of 2;500 fpm. I was in the 'downwind' approximately abeam the numbers for 31 during the right turn to on course and climbing through 3;000 ft MSL. As I rolled out on my southern course I saw a B737 coming right at me about 3;000 ft away and maybe 500ft above. I checked my altimeter thinking I must have busted into the class B airspace floor of 4;000 MSL. I had not. I was at 3;100 MSL. I disengaged the autopilot and took evasive action. I dived for 3;000 MSL. The jet didn't appear to take any action. About 1 sec after my action the 737 was flying directly over top me in the opposite direction. Moments later I got in his jet wash and nearly lost control. I ended up at 3;800 MSL because I had to go full power and pitch the nose up since the jet wash dropped my wing and nose to an unusual attitude. I typically stay 500 ft below the class B floor as a buffer; therefore I didn't like being at 3;800 MSL. My navworx ads-B tis-B never showed the traffic or alerted to it. Since I was in a climbing turn and performing a checklist I didn't see the 737 approaching until I was rolling out on course. Two problems I see: 1) why was the 737 at what appeared to be 3;500 MSL under the class B? If the jet was in fact in the class B; but on the floor of it at 4;000 MSL; I contest that it is not a safe buffer from the GA traffic that fly underneath the class B. If they fly at 4;500 MSL and GA traffic at 3;500 MSL then you have your 1;000 ft buffer. TRACON altitude assignments need to be reviewed. 2) why did my tis-B fail to alert me? It has a built in test that I check on the ground prior to takeoff and all was passed. It has alerted me in the past on traffic that wasn't nearly as close.

Original NASA ASRS Text

Title: Glasair III pilot reported a wake turbulence encounter departing LNC with a B737 inbound to another airport. Reporter expressed concern that his NavWorx TIS-B unit did not alert him to the traffic.

Narrative: After takeoff I performed a climbing right turn (right traffic for 31) to turn on course (south) to my destination. My plane climbs in excess of 2;500 fpm. I was in the 'downwind' approximately abeam the numbers for 31 during the right turn to on course and climbing through 3;000 ft MSL. As I rolled out on my southern course I saw a B737 coming right at me about 3;000 ft away and maybe 500ft above. I checked my altimeter thinking I must have busted into the Class B airspace floor of 4;000 MSL. I had not. I was at 3;100 MSL. I disengaged the autopilot and took evasive action. I dived for 3;000 MSL. The jet didn't appear to take any action. About 1 sec after my action the 737 was flying directly over top me in the opposite direction. Moments later I got in his jet wash and nearly lost control. I ended up at 3;800 MSL because I had to go full power and pitch the nose up since the jet wash dropped my wing and nose to an unusual attitude. I typically stay 500 ft below the Class B floor as a buffer; therefore I didn't like being at 3;800 MSL. My NavWorx ADS-B TIS-B never showed the traffic or alerted to it. Since I was in a climbing turn and performing a checklist I didn't see the 737 approaching until I was rolling out on course. Two problems I see: 1) Why was the 737 at what appeared to be 3;500 MSL under the Class B? If the jet was in fact in the Class B; but on the floor of it at 4;000 MSL; I contest that it is not a safe buffer from the GA traffic that fly underneath the Class B. If they fly at 4;500 MSL and GA traffic at 3;500 MSL then you have your 1;000 ft buffer. TRACON altitude assignments need to be reviewed. 2) Why did my TIS-B fail to alert me? It has a built in test that I check on the ground prior to takeoff and all was passed. It has alerted me in the past on traffic that wasn't nearly as close.

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.

Glasair III pilot reported a wake turbulence encounter departing lnc with a B737 inbound to another airport. Reporter expressed concern that his navworx tis-B unit did not alert him to the traffic.