CHART CHALLENGE A blue zippered border (instead of the previous dashed line) and diagonal cross-hatch lines within the border make it easier to identify boundaries. Click on the image to enlarge. * Also, check for other nearby obstacles that may be taller than the wind turbines. * Finally, guy wires may extend outward from these structures, so be on the look out. Be safe! Machteld Smith is a senior editor for the AOPA Air Safety Institute. She holds a commercial pilot certificate with multiengine, instrument, and seaplane ratings. She loves flying seaplanes and the adventure of landing on rivers and lakes! Email: machteld.smith@aopa.org If you notice a charting error, please bring it to the FAA's Aeronautical Information Services' attention. Call: 800-638-8972 or use the web portal for aeronautical inquiries.https://nxt-staging-books.s3.amazonaws.com/nxtbooks/aopa/cfi_vol14issue3/src/docs/page_27-Chart_Challenge_WIND_TURBINE_SYMBOL.png https://www.faa.gov/air_traffic/flight_info/aeronav/aero_data/Aeronautical_Inquiries/
