A sonex turned left off the runway during the takeoff roll because of torque and crosswind. Unable t...

Attributes
ACN	1021508
Time
Date	201207
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Light Sport Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Flight Plan	None
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 15 Flight Crew Total 30000 Flight Crew Type 65
Events
Anomaly	Ground Event / Encounter Object Ground Excursion Runway Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Wake Vortex Encounter

Narrative:

[I was flying a] sonex; conventional gear; (tail wheel). During takeoff after tail was in the air; for what ever reason; combination torque and crosswind; the aircraft began a turn to the left. [I] was unable to correct to the right because this aircraft does not have differential braking and did not have enough wind to have rudder authority. Braking with the tail in the air; trying to avoid a ridge along side of runway came in contact with a runway light. Only damage was to the ends of the propeller from contact with the sand and grass. No injuries. The takeoff was a 'rolling' takeoff and most likely there was some wake turbulence from an earlier takeoff of larger plane. (At-6). Not having differential braking and not feeling comfortable trying to put the tail down while trying to use max braking caused lack of directional control.

Original NASA ASRS Text

Title: A Sonex turned left off the runway during the takeoff roll because of torque and crosswind. Unable to stop; the pilot continued as his propeller struck sand and grass before liftoff.

Narrative: [I was flying a] Sonex; conventional gear; (tail wheel). During takeoff after tail was in the air; for what ever reason; combination torque and crosswind; the aircraft began a turn to the left. [I] was unable to correct to the right because this aircraft does not have differential braking and did not have enough wind to have rudder authority. Braking with the tail in the air; trying to avoid a ridge along side of runway came in contact with a runway light. Only damage was to the ends of the propeller from contact with the sand and grass. No injuries. The takeoff was a 'rolling' takeoff and most likely there was some wake turbulence from an earlier takeoff of larger plane. (AT-6). Not having differential braking and not feeling comfortable trying to put the tail down while trying to use max braking caused lack of directional control.

Data retrieved from NASA's ASRS site as of July 2013 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.

A sonex turned left off the runway during the takeoff roll because of torque and crosswind. Unable to stop; the pilot continued as his propeller struck sand and grass before liftoff.