If number 1 starts a turn during a straight-ahead rejoin, what should number 2 do?

When number 1 begins a turn during a straight-ahead rejoin, it is essential for number 2 to follow safely and efficiently. The correct action for number 2 is to rejoin in the turn. This is because a straight-ahead rejoin can quickly transition into a formation maneuver, requiring number 2 to adapt to the lead's flight path to maintain formation.

Rejoining in a turn allows number 2 to stay in a proper positional relationship with number 1, ensuring that the formation remains tight and controlled. This action helps prevent any excessive separation or risk of collision that could occur if number 2 remained in straight flight while number 1 changes direction. It’s fundamental in formation flying to maintain awareness of the lead aircraft's movements and adjust accordingly for safety and flight integrity.

Other options like maintaining straight flight could lead to being out of position, while executing a go-around is unnecessary in this context where both aircraft are capable of continuing to fly in formation. Increasing speed to catch up might disrupt the formation stability and create further complications, as it does not account for the spatial relationship necessary during the turn. Overall, rejoining in the turn facilitates continuity in the formation and is the most logical and safe response for number 2