This team of cousins won a competition Friday at the fair where they built blades for a wind turbine. Their team had the fastest time for a turbine to pull a toy car with a string. The team includes Allison Mathes, Lillian Mathes, Sarah Mathes and Taylor Soule, all of Barre. The competition was sponsored and organized by Apex Clean Energy. There were 22 participants in the competition on Thursday and Friday.