I have a nicely restored Rockwell jointer that I believe is from the early 50's. The motor tag is a bit scratched up, but I'm pretty sure it says 1 hp. Somebody is saying that he thinks it's 1/2 hp. What do you think?
Ryan's math is correct Things like efficiency factor in. My guess is that the motor is rated at 1HP. I would ping member Charles Lent. He has forgotten more about motors than most of us will ever know.
I never thought about it until a little bit ago, but I looked it up by model number, and the manufacturer's specs say 1 HP. That's kind of what I thought.