C P Butterfield

Three-dimensional airfoil performance measurements on a rotating wing

C P Butterfield, 1989 .

A comparison of spanwise aerodynamic loads estimated from measured bending moments versus direct pressure measurements on horizontal axis wind turbine blades

C P Butterfield, D A Simms, 1991 .

Aerodynamic pressure and flow-visualization measurement from a rotating wind turbine blade

C P Butterfield, 1988 .

Full-scale wind turbine rotor aerodynamics research

C P Butterfield, D A Simms, 1994 .

Effects of guy wires on SWECS tower dynamics. Technical report

C P Butterfield, K R Pykkonen, J H Sexton, 1980 .