What should number 1 do if he experiences spatial disorientation?

In situations involving spatial disorientation, the pilot who experiences this condition must prioritize safety and communication within the formation. The correct action of informing number 2 is crucial because it helps maintain situational awareness and allows the other pilot to monitor number 1's actions more closely. This communication can prevent potential mishaps, as the other pilot can assist or take preventive action if necessary.

While it may seem reasonable to transfer control to the other pilot, doing so without communication could lead to confusion. Keeping flying without changes is unsafe, as it disregards the disorientation being experienced, which may compromise flight safety. Additionally, initiating a dive maneuver can be dangerous and is not an appropriate response to spatial disorientation.

The emphasis on communication not only aligns with safety protocols but also fosters cooperation between pilots, which is vital when dealing with challenging circumstances in formation flying.