Fire Authority Capt. Steve Concialdi says the results confirm a suspicion investigators have had for years: that titanium clubs were likely the true cause of at least two blazes on Orange County golf courses, including one that burned 12 acres at Shady Canyon in 2010.
Professor James Earthman says the clubs can produce sparks if hit upon a rock. And the sparks will burn for more than a second — plenty of time to ignite a fire.
Concialdi says the Fire Authority is giving golfers permission to "improve their lie" — that is, to move their ball away from rocks and dry vegetation.