Under the crew chief, or crew captain, there is one exceedingly important duty—watching the engines. On each side a man looks constantly for signs of trouble—oil leaks, fire, or whatever. These two men are sometimes called “scanners.” White smoke or black smoke, as the case may be, on issuing from an engine signals a dire emergency. It may be only one or two minutes from incipient fire to explosion, and action must be immediate to put the fire out or correct other troubles. It is a very definite strain on the scanners to be alert every instant on a long flight, and various members of the crew may be rotated on these jobs. On routine daily reconnaissance in non-hurricane weather, the Air Force flights are long and some of the men feel decided relief on taking a hurricane mission, which is rougher but usually much shorter. With this training and organization of the crews, most of the emergencies are met quickly and efficiently. Now and then, the unexpected happens, however, as is evident in the following instances. In September, 1947, a number of missions by the Navy and Air Force had secured data in Hurricane George and the big storm was headed ominously toward Florida. An Air Force crew was in it on September 16 and had been in trouble. There were gasoline leaks, several fires, and engines acting up. They decided it was an emergency and set course for MacDill Field. Everything went well until they approached the field for a landing. There, in the middle of the runway, sat a big turkey buzzard. In the twinkling of an eye, when they were only fifty feet away, the great bird took off and smashed into the leading edge of the right wing. The impact made a sizable dent and the wing dipped. After six tries, the pilot skillfully got the plane down without an accident but the crew was more upset by this bird than by the average hurricane. Sometimes the unexpected leads to disaster. One of the most unfortunate of these incidents occurred at Bermuda in 1949. There was a report of a disturbance in the western Caribbean on November 3. It was late in the season, but a few very bad hurricanes have struck in this region in November, so the forecasters at Miami asked for reconnaissance and the request was passed to the Air Force at Kindley Field, in Bermuda. It was afternoon when the message came. A B-29 with a crew of thirteen men was cleared for a flight through the storm area and thence to Ramey Air Force Base, in Puerto Rico, where they were to spend the night.