This paper presents and discusses the results of detailed strain gauge measurements taken from the surface of a composite blade on a small horizontal-axis wind turbine. We believe that these are the first such measurements to be taken on a small wind turbine. The two-bladed upwind machine is located adjacent to Fort Scratchley, a historic seaside landmark in Newcastle, and has a nominal rated output of 5 kW at a wind and rotor speed of 10 m/s and 400 RPM respectively. A series of field experiments were undertaken where the aeroelastic response of the blade was measured with 26 surface mounted strain gauges, along with the wind speed and direction, turbine speed and direction and turbine power output. The results show a periodic fluctuation in both the blade flapping and lead-lag directions with a once per revolution period.