Until what altitude is the T-6 limited for certain defined operations?

The T-6 aircraft is limited to certain defined operations up to an altitude of 25,000 feet MSL. This altitude restriction is primarily in place due to the aircraft's capabilities, including oxygen requirements for the crew and the performance characteristics of the aircraft at higher altitudes.

Above 25,000 feet MSL, pilots may encounter diminished engine performance, reduced handling characteristics, and the necessity for supplemental oxygen, which complicates operations. Furthermore, adhering to this altitude limitation ensures safe operation within regulatory and operational guidelines. Hence, recognizing and respecting the 25,000 feet MSL limit is critical for maintaining safety and operational integrity in the T-6.