There are aspects of the failure modes of fan discs vs. flywheels. Most fan discs fail due to a huge imbalance due to the loss of a blade. I have done many tests like this and will attest that a fan letting go is not a fun thing.
And Saturday evening, a large and extremely dangerous tornado was reported near Glenn Heights, TX, south of Dallas, according to the National Weather Service. According to the Dallas Office of Emergency Management, there was some damage in the Glenn Heights area, but no reports of damage in the city of Dallas.
Larry Mowry. Read more Show less. VIDEO of a tornado near Jacksboro, TX from Tuesday, May 19, 2015, from CBS 11 Storm Chaser Jason McLaughlin. He was reporting live on CBS 11 and showing us this tornado as it was on the ground.