Originally Posted by Sea Conquest
Just read a test about anchors and fortress sounded like the best on the market. What do you think?
I think tests are interesting to see certain specifics of anchors or parts
of but are far from real life. But saying that, that test does pretty much mirror what we see both in our testing and real life but with cautions.
I agree completely with DonR about the Fortress. Great in soft bottom straight line pulls but can have issues in changing tidal directions, hard bottoms and they do bend under big loads.
We still reckon Spade has it by a nose but very very closely followed by it's 2 clones (Rocna and Supreme) but all 3 are a big step ahead of the rest and in most cases well above what most will ever put on them. The Ultra and the Raya look like they will be part of that club as well. Only done low level testing on those but both come up looking very shiny.
Sad to see Rocna is still modifying the results of tests. Oh gosh they come out on top, fancy that.
If working on the same safety
margin of 4:1, the industry standard worldwide, US G4 excepted -
5/16" G43 has a WLL of 2425lb
3/8" BBB G30 has a WLL of 2650lb (that actually makes it a G33 but what's 3 between mates
If a 4:1 margin is applied to a 5/16" chain with a WLL of 3900lb, that makes it a G65.
Just watch for that one. The elevated WLL of the G4 is purely due to a reduction of the safety
margin. A playing with numbers thing.
In metric land -
8mm G30 has a WLL of 800kg (1760lb)
8mm G40 1000kg (2205lb)
10mm G30 1250kg (2760lb)
10mm G40 1600kg (3530lb)
The small differences between the US and the metric loads are due to the small variations between metric and imperial. 3/8" is 9.5mm in metric speak.