True or False: A spin progresses through three phases as long as pro-spin controls are applied.

The statement is true. In a spin, there are indeed three distinct phases through which the maneuver progresses, namely the incipient phase, the steady-state phase, and the recovery phase.

When pro-spin controls are maintained, the aircraft remains in the spin, allowing it to transition through these phases. During the incipient phase, the aircraft begins to spin but has not yet fully stabilized. If the pro-spin controls are continued, it will enter the steady-state phase where the spin becomes fully developed with consistent rotations. Finally, if pro-spin controls are still applied, the aircraft will continue to exhibit spin characteristics, and recovery will not occur until the controls are neutralized or countered.

This assertion about the three phases emphasizes the importance of understanding spin dynamics and control response, reinforcing that maintaining pro-spin controls affects the progression through each phase of a spin.