A spin is a stall with rotation. It occurs when one wing stalls a little before the other. The way to enter one is to stall the airplane and at the moment the stall happens, apply full rudder deflection in the direction you want the rotation to occur. Airplanes with a cg near the rear limit tend to spin easily while those with the cg near or at the forward limit are difficult to spin and may not spin at all. Depending on the cg location, trainer types may be difficult to spin. The more aft the cg, the greater the tendency to spin "flat". To recover from a spin, stop the rotation with the rudder, and push the nose down, then recover to level flight.

If the airplane has ailerons, leave the ailerons in neutral for the first trials. The effect of ailerons is not very predictable, and depends on a number of factors. It may flatten the spin a little or make it steeper. The same goes for power. Normally spins are done with the engine at idle or very low power. If you use much power, you may not be able to stall the wing and no spin will occur.

Keep the elevators full up during the spin, unless you want to spin inverted, in which case move the elevators to full down, and keep them there until recovery.

Be sure to start the spin with enough altitude to allow recovery. It comes down pretty fast.