Crum said they first learned three years ago about problems associated with wind turbine clutter from people seeing significantly different radar images. "We knew about it, but we didn't realize how big of a problem it could be, because most of the wind farms that had been out there in the past were smaller and not these wind farms that we're seeing now with turbines of 400 to 500 feet tall," Crum said.

One of the large wind turbine blades being hauled from Searsport to the Canadian Maritimes hit and broke a traffic light and pulled down wires at Hogan Road and Mount Hope Avenue shortly before 1 p.m. Saturday, according to Bangor police.

A recent federal ruling that rejected 13 of 22 proposed wind turbines in Roxbury because of height restrictions was based on incorrect information, after all. As of March 18, the Air Traffic Airspace Branch of the Federal Aviation Administration reversed its Jan. 29 rulings by determining that the 13 turbines will pose no hazards to air traffic.

One of two wind-power developers behind a proposed local project said Wednesday he was baffled by a recent federal ruling that rejected 13 of 22 turbines because of height restrictions. However, Record Hill Wind LLC Principal Rob Gardiner said he didn't believe the Federal Aviation Administration ruling would hinder the $120 million project. "We are treating this seriously because this is a federal agency," Gardiner said.