How long does the emergency oxygen system supply the pilot with oxygen?

The emergency oxygen system in the T-6A is designed to supply the pilot with oxygen for a duration of 10 minutes. This time is critical during emergencies, particularly in situations where cabin pressure is lost or when operating at high altitudes where oxygen levels are insufficient for safe operation.

This 10-minute time frame provides pilots with enough oxygen to perform necessary emergency procedures, descend to a safer altitude, or take other actions to regain cabin pressure if possible. The system is set up with this duration in mind to give pilots an adequate window to manage their situation and ensure their safety and that of any passengers.

Considering the other options, durations shorter than 10 minutes would not allow sufficient time for the pilot to resolve an emergency, while durations longer than 10 minutes would likely exceed the capacity of the emergency oxygen system, which is specifically calibrated based on usage requirements during critical situations.