Just an aside, for the record, obviously not important but since the topic came up...
A spiral and a spin are two very different things, and a spin and a flat spin again are very different.
In a spiral you actually still fly, in a spin you are not, you are in a continuous stall situation. That means from a spiral you can recover simply by "flying out of it", for a spin you have to do stuff you would not do when "flying", like full(!) and sudden rudder.
This heavily depends on the airplane, but a flat spin can be really dangerous, getting out of one often is much harder than from a "normal" spin. No problem in an aerobatic airplane, but in a jet it can be an unrecoverable situation.
A spiral and a spin are two very different things, and a spin and a flat spin again are very different.
In a spiral you actually still fly, in a spin you are not, you are in a continuous stall situation. That means from a spiral you can recover simply by "flying out of it", for a spin you have to do stuff you would not do when "flying", like full(!) and sudden rudder.
This heavily depends on the airplane, but a flat spin can be really dangerous, getting out of one often is much harder than from a "normal" spin. No problem in an aerobatic airplane, but in a jet it can be an unrecoverable situation.