caption: The image shows a group of four airplanes flying in formation in the sky. The photo is in black and white, and the airplanes are all the same size and shape, with the largest one in the center and two smaller ones on either side. The planes are all facing the same direction, and they are all flying in a straight line, with their wings spread wide and their engines roaring. The sky is a bright blue, with a few white clouds scattered throughout.