I play with power kites, like the ones people use for kite surfing (only smaller).
If you're unfamiliar, they're essentially miniature parachutes.
Even my smallest one which is just a 1 meter kite can generate enormous power. In good winds and a fast airspeed it can pull me around the field a little bit, at least until the string breaks. Im not a small guy.
I don't have any actual numbers for you, but based on feel, I think the small 1 meter kite pulls somewhere around 80 to 100 pounds, maybe a little more.
I have a 1.5 meter power kite that I've used to pull myself up and down the river in a kayak.