The biggest airshow in the world is happening right now. Here's what's happening in the tower.

1) Oshkosh (KOSH) is the busiest control tower in the world during EAA AirVenture.

2) Air Traffic Controllers from across the US come to Oshkosh to work the show.

3) Controllers work in 4 person teams, with a total of 16 teams.

4) All controllers wear pink shirts, visually separating them from other aircraft operations personnel at the airport.

5) Why pink? Because air traffic control teams stand next to the runway during aircraft departures, and the color keeps them separated from other flight line operations volunteers who wear orange.

6) During AirVenture, air traffic controllers have reduced horizontal separation minimums of 1,500 feet between airplanes. Normally, separation minimums are 3,000 feet between aircraft.

7) This allows controllers to land up to 3 aircraft at a time on a runway.

8) How is that done? There are different colored dots painted on each runway. Aircraft are cleared to land on a specific colored dot.

9) Up to 10,000 aircraft land at the fly-in every year.

Have you flown into Oshkosh? Tell us what it was like in the comments.

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