I was thinking that myself. I cant remember the specs on my engine, but I was sure it put out more than that. Considering I've never been a light guy, and I was right around 200 lbs. when I last flew it, and it was about as fast as the speeds he listed. Of course, mine is lighter than that too, which more than offsets the difference in our weight. Still, I would almost swear my HP rating was in the 50-60 range.