Which of the following is correct for intentional spin entry?

The correct choice emphasizes the proper technique required for intentional spin entry, which is a critical maneuver in flight training for understanding aircraft behavior and recovery methods during spins. When entering a spin deliberately, it is essential to apply full rudder in the direction of the desired spin. This action effectively unbalances the aircraft, leading to a yaw towards the direction of the rudder input. Additionally, full back-stick input is necessary to exceed the critical angle of attack, ensuring that the wings stall, which is a prerequisite for establishing a spin.

This approach acknowledges the need for specific aerodynamic conditions to initiate a spin, which is crucial for safe practice and understanding the dynamics involved. The combination of both full rudder and back-stick creates the necessary conditions to enter and then study the resulting spin characteristics effectively.

In contrast, the other choices do not follow the required procedures for spin entry. For instance, aileron control can worsen the situation rather than help; announcing altitude, AOA, airspeed, or turn needle deflection may not be relevant during an intentional spin and could possibly distract from the maneuver. Additionally, keeping the aircraft nose level would prevent a stall from occurring, which is necessary for initiating a spin. Thus, choice C outlines the correct technique for entering a