I got some surplus government computer stuff in and they had these airmax motors in them.
I think it is a stepper motor but am unsure of the ac or dc and wattage.
I spun it with a drill at low rpm and my voltmeter shows 3.4V AC. I think if I put some small 1-2 foot blades on them ( I have 4) I could run a small bank of batteries maybe?
Motor is about 6" wide