What is the maximum percentage of oxygen that the T-6 OBOGS can deliver at MAX concentration?

The correct answer is 95% oxygen, which is the maximum concentration that the T-6 On-Board Oxygen Generating System (OBOGS) can deliver to the pilot. This system is designed to provide high concentrations of oxygen, especially needed during operations at higher altitudes where ambient oxygen levels are low.

The OBOGS works by separating oxygen from the ambient air and delivering it to the pilot's mask. While the system is efficient, it cannot reach 100% purity because the process of generating oxygen inevitably allows for some dilution with nitrogen and other gases present in the surrounding air.

Thus, the specification of 95% reflects the system's operational capabilities, ensuring pilots receive sufficient oxygen under various conditions while maintaining safety and efficiency. Understanding this is crucial for pilot preparedness and effective use of the aircraft's life support systems. The other options, while they may represent high concentrations, exceed what the T-6 OBOGS can realistically achieve in practice.