Incident Overview
A pilot reported that during pre-takeoff procedures, the wind was from 290 degrees at 10 knots with gusts to 20 knots 'or less.' After completing the pre-takeoff checklist, the pilot executed a 360-degree turn to check for traffic before taxiing onto the active runway.
Sequence of Events
When the airplane had made a 180-degree turn, placing the tail directly into the wind, an 'unexpected strong gust of wind' lifted the tail, causing the airplane to nose down. A subsequent wind gust then caused the airplane to nose over onto its back.
Pilot's Report
The pilot noted the wind conditions and the unexpected gust during the turn. No further details were provided regarding aircraft damage or pilot injuries.