The standard T-6 cruise and descent speed is:

The standard T-6 cruise and descent speed is 200 KIAS (Knots Indicated Airspeed) because this speed provides a balance between fuel efficiency and performance during cruise flight. The T-6 aircraft is designed to operate effectively within this speed range, making it ideal for various training and operational scenarios. During descent, traveling at 200 KIAS allows for a controlled rate of descent while maintaining the necessary lift and safety margins. This speed is widely recognized among pilots and is often referred to in training manuals and flight briefs, making it a staple in the operational performance of the T-6.