During a controlled ejection, how should the oxygen mask and helmet be positioned?

In a controlled ejection scenario, it is critical to ensure that the oxygen mask and helmet are properly secured. The correct choice emphasizes that the mask and helmet should be fastened and tight. This positioning is vital for several reasons.

Firstly, a securely fitted oxygen mask ensures that the pilot receives a consistent supply of oxygen, which is crucial for maintaining consciousness and cognitive function during ejection and descent. In high-altitude situations, the loss of oxygen can lead to hypoxia, which drastically impairs a pilot's ability to operate safely.

Secondly, a tight helmet helps protect the head from potential injuries during the ejection process and while under parachute descent. A helmet that fits snugly prevents it from moving around, which can offer better protection from the forces experienced during ejection and also reduce the risk of it coming off or shifting in flight.

Overall, having both the oxygen mask and helmet fastened and tight ensures maximum safety, efficiency, and protection for the pilot during a controlled ejection.