Hi, I don;t know if this is the right forum for this topic, but I am looking for advice on building a backyard zip line as follows”
-106′ between two trees (pitch pine) over flat ground. So I would install starting point of line higher up on one tree than end point of opposing tree.
-I plan on tying around the trees on both ends as opposed to a bolt through.
-I would like both children and adults to be able to use, so need something rated for 250+pounds.
-Looking at some of the kits for sale at various websites.
So here is my wish list:
I would like a kit that has everything, but the cable lengths offered are 75′, 100′, 150′. Distance between tress is 106′. By everything I mean, extras like harness, seat, brake block, etc.
I would like to use a gravity stop type braking with a stop block for safety. Although one kit (Alien Flier I believe) offers a trolley with a trigger style brake built in, which is appealing.
I would like a detachable trolley with closed top, so if someone happens to grab the top of the trolley while in motion they won’t injure their hands.
So I’m not sure if I should piece a kit together separately, or buy a kit and cable separate, or if their is a complete kit that has everything I need. Budget is max $400, ideally.
Also, are the trees I want to use ok for this? Pitch Pines tend to sway a lot in the wind, so not sure if they are even the proper tree to begin with…
Thanks for any suggestions, and if there is a better forum out there for this please let me know!
Answers:
1. Before you buy gear you need to have an understanding of the amplified loads on the ends of a zip line. In some setups the static load can be multiplied by factors of ten twenty thirty! The gear might not break but what about the anchor points
Do a search here for zip line or speedline loads. You’ll regret not doing your engineering if the trees break
I’m already looking at two slightly larger diameter trees with a 75′ run as opposed to my original scenario anyway, because one of my first choice trees does not seem hardy enough. Although I have to say, I’ve never seen one of these pitch pines fall over in any type of high wind weather.