I'm going to purchase equipment for a skyline (moving large rock quantity OVER varied terrain..). A griphoist is quite expensive and heavy with its cable system. I'm leaning towards a good quality Poly sailing line (7,000 lb tensel strength, 1,050 lb work strength) and a multiple pulley block and tackle system to elevate/tension the line where the griphoist would normally be.

Anyone used a rope setup before? Is a griphoist worth the extra coin and weight?

How long of a span do you see yourself using? Unless you can tolerate a lot of sag, it could be pretty easy to exceed 7k tension on a line. I know a few tower erectors and have used guy cables a few times. Tension strength on 5/16" cable is 11.2k, so you can pull it pretty tight with a come-a-long and tie the loop off with standard Crosby clamps. Hope this helps, I love this kind of thing.

I just designed a fixed skyline for a guy who wants to be able to haul logs, his Subaru, and other building materials. He's using salvaged 1-3/8" wire rope from a chair lift. I'm looking forward to taking the inaugural ride across it!

How long of a span do you see yourself using? Unless you can tolerate a lot of sag, it could be pretty easy to exceed 7k tension on a line. I know a few tower erectors and have used guy cables a few times. Tension strength on 5/16" cable is 11.2k, so you can pull it pretty tight with a come-a-long and tie the loop off with standard Crosby clamps. Hope this helps, I love this kind of thing.

I just designed a fixed skyline for a guy who wants to be able to haul logs, his Subaru, and other building materials. He's using salvaged 1-3/8" wire rope from a chair lift. I'm looking forward to taking the inaugural ride across it!

I actually just bought a 190' long 5/8" thick poly rope off ebay. It has an 11,000 lb tensil, and is supposed to be low stretch. This gives me over 1,000 lb work weight. I figure I can tension the line with 200-300 pounds and then transport up to 700 pounds down the line.

I plan to elevate the quarry end and let gravity do most of the work to get the rock to the trail. Maybe I'll take some pics once everything gets set up.