What category must an aircraft be in to perform spins?

For an aircraft to be authorized to perform spins, it must be classified under the Utility Category. This category is designed for aircraft that can perform limited aerobatic maneuvers, including spins, but with certain limitations regarding the loading and maneuvers that can be executed.

Utility Category aircraft are built to withstand the stresses imposed during spins and other aerobatics, ensuring safety during these types of flights. Aircraft in this category can safely undergo spins because they meet strict design and performance criteria set by aviation authorities, including structural integrity and control during recovery.

In contrast, the Experimental Category is primarily for aircraft that are undergoing testing or are not conforming to established airworthiness criteria, thereby lacking the necessary certification for spins. The Primary Category is typically for light-sport aircraft that do not have a specific spin certification, while the Standard Category includes general aircraft which may not be permitted to perform spins under standard operations. Therefore, the Utility Category is the specific classification that allows for spins, adhering to safety and performance requirements.