For aircraft category A, what is the maximum speed?

The maximum speed for aircraft in Category A is indeed 91 knots. This category is generally defined by the aircraft's approach speed during landing. Category A aircraft are typically slower than those in other categories, such as B, C, or D, which have higher speeds due to different operational capabilities or design standards.

Recognizing the limitations on speed for Category A aircraft is crucial for ensuring safe operations, particularly during approaches and landings, where speed management is essential for maintaining control and complying with procedural requirements. Knowing this maximum speed helps pilots and operators adhere to regulations and operational guidelines to enhance safety in various flight scenarios.

Understanding the context of the other categories reinforces the significance of these speed limitations: higher category aircraft are designed for faster operations and, therefore, have higher maximum speeds. For aviation safety and regulatory compliance, it's vital to be aware of the specific parameters governing each aircraft category.