Rocna or Vulcan 55

Anchor Weight Rocna fluke area Vulcan fluke area Rec. G40 chain Approx weight Typical WLL Typical break
55 kg
121 lb
357 in2 377 in2 12 mm
7/16"
3.30 kg/m
230 lb/100'
2120 kgf
7200 lb
8480 kgf
21600 lb
Shackle pin size Typical high load body diameter
< 16 mm < 13.5 mm

Tayana 55

Asko Marine Custom 19m

Catana 521

Chuck Paine Lyman Morse 54

Hallberg-Rassy 54

Moody 54

Ocean Alexander 58

Oyster 56

Tayana 52

Tayana 55

Multi-hulls have higher windage than mono-hulls, and therefore we recommend a larger size anchor. Use the guide as instructed, then select the model one size larger.