What is the approximate sink rate (VSI) at best glide speed in a clean configuration?

The approximate sink rate at best glide speed in a clean configuration for the T-6B is in the range of 1350 to 1500 feet per minute (fpm). At best glide speed, the aircraft is optimized for maximum lift to drag ratio, allowing it to cover the greatest horizontal distance for a given altitude loss.

This range reflects the performance characteristics of the T-6B under ideal conditions, indicating that while the aircraft is gliding, it descends steadily and relatively slowly compared to higher sink rates associated with configurations that either increase drag or are not optimized for gliding.

Understanding the sink rate at this speed is critical for pilots in managing their glide path and ensuring they can reach their intended landing area if an engine failure occurs. It provides a fundamental performance benchmark for making strategic decisions during flight emergencies.