BOYNTON BEACH, FL, USA
N29BW
BERKSHIRE CONCEPT 70
AFTER BEING TOWED ALOFT, THE FLIGHT PROCEEDED WEST TO LOCATE THERMALS WHICH WERE REPORTED TO BE GOOD BY ANOTHER GLIDER PILOT. THE FLIGHT WAS ABOUT 4-5 MI WEST OF THE DEPARTURE AIRPORT, AT 1,900 FT, WHEN THE PILOT WAS UNABLE TO LOCATE THERMALS AND ELECTED TO RETURN TO THE AIRPORT. WHILE EN ROUTE HE ENCOUNTERED 'STRONG SINK.' HE THEN CONTINUED IN WHAT WAS DESCRIBED AS 'MILD SINK', AND HE REALIZED THAT HE WOULD BE UNABLE TO LAND AT THE DEPARTURE AIRPORT. HE MADE A FORCED LANDING IN THE EVERGLADES. AFTER TOUCHDOWN, THE GLIDER GROUND LOOPED AND CAME TO REST UPRIGHT.
THE PILOT'S IMPROPER IN-FLIGHT PLANNING AND THE LACK OF ADEQUATE THERMAL LIFT.
Source: NTSB Aviation Accident Database
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