Mickey_Fx
Veteran Member
IMO the biggest factor in determining how much power is need to operate a tiller is the ground condition & how big of a bite (ground speed and depth) you're trying to tackle. I don't have any rocks to deal with but the ground can get pretty packed over the winter months will all the rain. I've been tilling the same pice of ground for more than 30 yrs. The old GT had a 15HP rated engine & a 3' tiller. Took quite a few passes to get the ground worked up and ready for planting. I've also use a 55HP tractor & 6' tiller on this patch and the rate I was wroking, it placed a large strain on the tractor. The current tractor (24pto HP)/tiller set-up does well but I don'y try and do it all in one pass. IMO 10 HP isn't going to get much work done using a tiller 3' wide or wider. YMMV