1. C.W.Potter is with 3TIER Pacific Rim, Hobart, Tasmania, Australia
2. D. Lew is with the National Renewable Energy Laboratory, National Wind Technology Center, Boulder, Colorado, USA
3. J. McCaa is with 3TIER, Seattle, Washington, USA
4. S. Cheng is with 3TIER, Seattle, Washington, USA
5. S. Eichelberger is with 3TIER, Seattle, Washington, USA
6. E. Grimit is with 3TIER, Seattle, Washington, USA