Brian Greenstone Review
March 3rd, 2010Recently Brian Greenstone had a chance to review some of our gear. Here is the video.
Recently Brian Greenstone had a chance to review some of our gear. Here is the video.
Our launch platform is free-standing and constructed of pressure treated lumber (2 x 8’s, 6’s and 4’s) using galvanized fasteners (16d twist nails and heavy lag screws). The zip line uses a classic arresting block and 1/2 inch marine-grade shock cord anchored to a third tree (tangentially) to the main cable at around the 55-60 foot mark. We use separate shock cords for “kids” and “adults”. There is no landing platform as the arresting block and cable actually return the seat and rider to almost the initial contact point and riders simply hop off the seat. We are working on a seat return system as the next feature. Following a ride, we currently clip a line to the seat and walk it back up to the launch platform. Speed is good at maybe 15 or so mph. Despite the relatively short length the ride is exciting and pre-flight safety checks keep riders (the “thrillbillies”) healthy.
The zip line statistics are as follows:
Top anchor height: 12.5 feet
Lower anchor height: 8.5 feet
Cable length: 70 feet
The top anchor uses an 8 foot cable sling, pressure treated blocks on the circumference of the tree, galvanized fasteners, a 12 inch turnbuckle, and safety chain. The lower anchor uses the same blocks and cable clamps only.
Here are few photos and a sketch of the zip line:

Nathan, thanks for the great website. Here are zip line pictures from our website, www.farmhouselife.com. Farmhouse Life is our farm-based campground in central Iowa located near the Raccoon River Valley Trail. We have a bunk house, shelter house, mess shed, a pool in a grain bin, and a zip line for kids with more plans in the works. The zip line is 80 feet long with a 10 foot long sand trap for stopping. The “launch platform” is less than 4 feet off the ground but the kids think that the first step off the platform is a great adventure. More pictures are available on the website.

The zip line is hugely popular and the “deals” that determine who gets to go next are funny to observe. Two adults are constantly on the move returning the trolley and putting on safety harnesses but the kids have a blast.

Our son Jake in full safety harness about halfway down the line. We tried a seat tethered to the trolley but the kids like to have their feet swinging free.

Our niece Bailey heads down the line while Ian helps keep order on the launch platform.