Sizing Guide - Pounds

ROCNA OR VULCAN MODEL
  4 6 9 10 12 15 20 25 33 40 55 70 110
Vessel Length     Vulcan only Rocna only Vulcan only             Rocna only Rocna only
13 ft ≤4,400                        
16 ft ≤2,200 ≤11,020                      
20 ft ≤1,100 ≤7,720 ≤15,430                    
23 ft ≤1,100 ≤4,410 ≤13,230 ≤15,430 ≤19,840                
26 ft   ≤2,210 ≤11,020 ≤13,230 ≤17,640 ≤26,460              
30 ft   ≤1,100 ≤8,820 ≤11,020 ≤15,430 ≤22,050 ≤35,270            
 33 ft     ≤6,610 ≤8,820 ≤13,230 ≤18,740 ≤30,860 ≤48,500          
36 ft       ≤6,610 ≤11,020 ≤15,430 ≤26,460 ≤44,090          
39 ft         ≤8,820 ≤13,230 ≤22,050 ≤39,680 ≤66,140        
46 ft           ≤8,820 ≤13,230 ≤28,660 ≤50,710 ≤88,180      
 52 ft             ≤6,610 ≤19,840 ≤39,680 ≤70,550 ≤132,300    
59 ft               ≤11,020 ≤30,860 ≤55,120 ≤110,230 ≤187,400  
66 ft                 ≤22,050 ≤39,680 ≤88,180 ≤165,300 ≤363,000
72 ft                 ≤13,230 ≤26,460 ≤72,750 ≤143,300 ≤330,000
79 ft                   ≤15,430 ≤55,120 ≤121,300 ≤297,000
85 ft                     ≤39,680 ≤99,200 ≤265,000
92 ft                       ≤77,200 ≤231,000
98 ft                         Use EN*
 115 ft                         Use EN*
Anchor weight 4 kg 6 kg 9 kg 10 kg 12 kg 15 kg 20 kg 25 kg 33 kg 40 kg 55 kg 70 kg 110 kg
9 lb 13 lb 20 lb 22 lb 27 lb 33 lb 44 lb 55 lb 73 lb 88 lb 121 lb 154 lb 243 lb
Rocna fluke area 71 in² 91 in² - 123 in² - 160 in² 177 in² 219 in² 263 in² 301 in² 357 in² 417 in² 516 in²
Vulcan fluke area 65 in² 87 in² 113 in² - 136 in² 158 in² 192 in² 223 in² 268 in² 305 in² 377 in² - -
Rec. G40 chain 6 mm 6 mm 7 mm 7 mm 8 mm 8 mm 9 mm 10 mm  10 mm 11 mm 12 mm 14 mm 16 mm
1/4" 1/4" 1/4" 1/4" 5/16" 5/16" 5/16" 3/8" 3/8" 7/16" 7/16" 1/2" 5/8"