2008-05-17 - Gulf Breeze, FL - Oval

I am a Battalion Chief with the fire department. I was on duty standing behind one of our stations talking to three other firefighters. It was just before lunch time on May 17th 08. I was looking up and to the north,north west. I spotted a silver/white craft flying from the north going due south. After watching it for a couple of seconds, I yelled out LOOK. The other firefighters glanced up but did not see anything then looked back at me. I again yelled LOOK. They all glanced up again but did not see anything then looking back at me. A third time yelled LOOK and one of the firefighters saw the craft as it flew out of sight. He said that he saw it as it flew away but thought it looked like a feather. He could not explain how it was flying in a straight line. The craft was hard to see against the clear blue sky and flying at a high rate of speed. There was no sound or was there any cloud that followed the craft. It is my estimation that the craft flew about 20 miles in 15 seconds. It also looked to be about the size of a large airliner when they are flying at cruising speed.