On what side of the runway should number 1 position number 2 during a formation approach?

During a formation approach, number 2 should position themselves on the upwind side of the runway. This positioning is crucial for several reasons. Firstly, it helps maintain proper spacing and visibility between aircraft. When number 2 is on the upwind side, they are typically in a safer position to execute a go-around if necessary, as their flight path is clear and not obstructed by number 1 during the landing phase. Additionally, placing number 2 on the upwind side allows number 1 to maintain a comfortable margin, ensuring that number 2 can safely follow without risking a collision or an awkward flight path. This technique enhances the overall safety of the approach and landing process in a formation flight.