I think they are "Fractional / Fractional" HP Motors
Would imagine the HP rating on the commonly used PSC motor for those ceiling fans is like 1/16 HP at best!
Any more than that would prove to be LETHAL if someone stuck their head up high enough to engage the blades!
(Brings back memories of the '70s classic horror movie - "Dawn of the Dead").
Hands and Fingers would be lossed at an alarming rate!
Also, it would move so much Air at high speed, the effect would be annoying rather than pleasant!