How much HP would a lawn tractor need to pull a weighted down 48" tow behind core aerator? I got a request to aerate a lawn that is large enough to utilize a tow behind. None of the rental yards have anything to pull a tow behind with. My brother in law has a 13 HP Crapsman lawn tractor/mower with a hitch on it. Think this would do the job? I'm thinking it's not enough power. I'd hate to have to wrestle a small walk behind aerator when I can use a larger tow behind and get the job done faster and a lot less fatigued!