I remember a couple of years ago, before Phantoms, HobbyKing had a Beer Lift contest. The winner lifted 58.7 kg (129 pounds). A small kid could go for a ride.....
But, I do have a hex that can easily lift five pounds, and since I live in an ocean of trees separated with lots of ponds and lakes. I've often thought of putting a grapple on it to use for in-tree rescue - if it ever became necessary.