three hours of daylight left in the search zone. there s probably another four hours of daylight left. andrew stevens for us in perth, australia. it could be hours before we know whether there are more images available of this debris, whether they get a better look at it. andrew, our thanks to you. for more now on what they re looking at on this search, let s go to sydney, australia, and bring in aviation expert tom ballenti ballentine, chief correspondent of aviation magazine. tom, let me ask you about the debris itself, because we re looking at the pictures right now. we understand the largest piece of debris about 78, 79 feet long. is that a piece, with your experience here, that could possibly be a piece of this plane? oh, yes, absolutely. i mean, excuse me for using metric measurements, but that 79 feet is about 24 meters. now, if you look at a boeing 777-200, the height of the tail is around about the 18-meter
piece of the puzzle that we don t have at this point? well, we would know about it if we were within range, and i think as the pilot, alastair, pointed out earlier on, the actual location of that could be hundreds of miles away from where the wreckage is because of the drift factor. and the fact is that if this is a part of the aircraft and we find that it is, then that s only the beginning of solving this puzzle. there s still a great, long, complex business to go through of modeling the drifts, the winds to see where that wreckage started out and then going to that area and trying to locate the flight data recorder, the black box, which puts out a signal. it could be hundreds of kilometers away from where they are searching for these pieces of wreckage. tom, that s because, just to be clear about this, in your mind, the flight data recorder, that would be at point of