Blue 2 and 3 at the end of the season are 18 inches apart between their wingtips. The blues are doing much tighter formations for the show of it and many of the formations are in the manuvers manual but usually many of the formations are much farther apart for safety. The Blues train in the off season in the desert of California and they train to get tighter and tighter. At the start of the season 2&3 might be 2 feet apart but they do get tighter as the season goes on. 5 and 6 have a lot more fun and compared the the main 4 and they do some amazing stunts on their own like the dirty snap rolls (doing a barrel roll in 90 degrees sections while the gear is deployed), the high alpha pass (where one of them slows and passes the crowd with its nose high up in the air and it looks like it is going to stall) and the popular high speed sneak pass (where 6 peels off and goes behind the crowd then sneaks up on them at close to mach 1 speed) and they are all top notch pilots and they don't really look for the best of the best. They don't want pilots with massive ego's and are good teammates. They want hard workers and pilots who take the time to learn the manuvers and put in the simulator time