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View Poll Results: What is your Bigness Factor?
0.5 - 0.9 = Light 18 13.85%
1.0 - 1.2 = Normal 33 25.38%
1.2 - 1.4 = Conservative 37 28.46%
1.5 + = BIB 42 32.31%
Voters: 130. You may not vote on this poll

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Old 28-03-2013, 12:58   #16
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Re: What is your Bigness Factor?

66 lb anchor / 41 foot boat = 1.60

Of course my anchor is a Lewmar Bruce, so that probably invalidates my vote...

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Old 28-03-2013, 13:00   #17
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Re: What is your Bigness Factor?

1.32, which I believe is two sizes larger than anchor manufacture recommendation (Manson supreme).
Erika

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Old 28-03-2013, 13:03   #18
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Re: What is your Bigness Factor?

Hey, not trying to poke the lion but bruces rock! Just need big ones
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Old 28-03-2013, 13:06   #19
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Re: What is your Bigness Factor?

500 lbs / 36 feet = 13.88

Do I win any prizes
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Old 28-03-2013, 13:14   #20
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Re: What is your Bigness Factor?

Pathetic these numbers of y'all except for Cotemars mooring

176lb. / 64' = 2.75
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Old 28-03-2013, 13:16   #21
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Re: What is your Bigness Factor?

60/32 = 1.875

Not too shabby.
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Old 28-03-2013, 13:26   #22
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Re: What is your Bigness Factor?

Quote:
Originally Posted by Ocean Girl View Post
1.32, which I believe is two sizes larger than anchor manufacture recommendation (Manson supreme).
Erika

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Battle cry.... BIB!
There is another flaw in this metric, it doesn't account for the new generation anchors. By only looking at weight vs. LOA, you might as well just have an engine block down there. New generation anchors don't derive their strength from weight but from design.
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Old 28-03-2013, 13:30   #23
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Re: What is your Bigness Factor?

Quote:
There is another flaw in this metric, it doesn't account for the new generation anchors.
No judgments are being made about the quality of your anchor, just its size. Anchor companies size their anchors by weight vs. length in their charts.
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Old 28-03-2013, 13:33   #24
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Re: What is your Bigness Factor?

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Originally Posted by Kettlewell View Post
Virtually every anchor manufacturer has a table relating boat length to anchor size. Some do include displacement, but most have something vague about upsizing one if your boat is heavy.
Sure, but it's not a linear relationship. They do their own calculation. Thus a 50 foot boat requires more than twice the anchor that a 25 foot boat does -- which would seem blindingly obvious.
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Old 28-03-2013, 13:41   #25
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Re: What is your Bigness Factor?

since we are measuring our anchors?


1.29 here....35 pound manson on 27 foot boat
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Old 28-03-2013, 13:42   #26
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Re: What is your Bigness Factor?

1.38, now I feel inadequate

maybe we should also now refer to this as the
"fear factor"
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Old 28-03-2013, 13:43   #27
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Re: What is your Bigness Factor?

should state what kind of anchor it is so we know if it is a dragger or a new generation that holds the boat opc orn:


really though....great thread!
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Old 28-03-2013, 13:44   #28
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Re: What is your Bigness Factor?

Primary anchor 1.125
Storm anchor 1.625
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Old 28-03-2013, 13:48   #29
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Re: What is your Bigness Factor?

Quote:
Originally Posted by Kettlewell View Post
No judgments are being made about the quality of your anchor, just its size. Anchor companies size their anchors by weight vs. length in their charts.
Yes, but anchor companies make size recommendations based on their designs.

For a 30 foot boat, here are a couple of the size recommendations:
  • Manson Supreme - 15-25 lbs - BIB 0.8
  • Manson Racer - 7.5 - 7.9 lbs - BIB 0.25
  • Manson Plough - 30-35 lbs - BIB 1.0
  • Lewmar Delta - 14 -20 lbs - BIB 0.47
  • Lewmar Claw (Bruce style) - 16.5 - 22 lbs - BIB 0.55
This metric just simply doesn't work. A properly sized anchor has a BIB ranging from 0.25 to 1.0.

Sorry man, sometimes you just can't over simplify things with numbers.

Jesse
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Old 28-03-2013, 13:48   #30
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Re: What is your Bigness Factor?

Quote:
Originally Posted by Don L View Post
1.38, now I feel inadequate

maybe we should also now refer to this as the
"fear factor"
Yes, but Don. You can count your davits or stern ladder to make all the girls smile again
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