What is the maximum surface wind speed (in knots) at which the canopy should be opened?

The maximum surface wind speed at which the canopy should be opened is 40 knots. This limit is established to ensure safety and operational integrity while handling the aircraft. At wind speeds exceeding this threshold, the potential for adverse effects on the aircraft's control and structure increases significantly. High winds can create turbulence and difficult handling conditions, leading to higher risks when personnel are entering or exiting the aircraft through the open canopy.

In practice, staying within this limit helps maintain a safe environment during ground operations, reducing the likelihood of accidents or injuries. The decision to open the canopy must always prioritize the safety of all personnel involved and the restrained function of the aircraft systems. Other options propose lower wind speeds, which don't encapsulate the maximum safe operational limits established for the T-6B operation and only reflect more conservative measures.