six planes fly in formation
six planes fly in sync
six red and white planes fly together
six planes do a coordinated roll
six planes coordinate the release of smoke trails
six planes fly in triangle formation
six planes fly in formation like geese
performance planes flying in formation
red and white planes flying overhead
A group of planes. 
6 planes in the air
six red and white planes
five planes leaving a smoke trail
a clear blue sky
white smoke lines left by planes
six planes flying in formation
six planes that all look alike
four red and white planes flying in formation in the sky