weathervaning
n.— «“During hurricanes, most construction companies allow their cranes to spin freely in the winds,” said Edmonson. “And I think that is dangerous.” That practice is known in the construction industry as weathervaning, allowing cranes to swing with the wind like weathervanes.» —“Crane Accidents Prompt Call For Action” by Peter D’Oench in Miami Local10.com (Florida) July 7, 2006. (source: Double-Tongued Dictionary)