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Go Back   SailNet Community > Welcome to Sailnet > SailNet FAQ > hoisting a large anchor
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Topic Review (Newest First)
06-18-2010 01:49 PM
EJO
How did it go?

It must be on the bottom of the sea
05-25-2010 05:33 PM
Bene505
Quote:
Originally Posted by rosskowh View Post
i need to set a 350 lb pyramid anchor from my 30 ft. sailboat. can the main halyard handle this kind of weight? i only need a few inches to clear the deck and lower it into the water. my main halyard is new 5/8 braided nylon which should be more than capable of holding the weight but what about the rest of the rigging? anyone have any experience with something similar???
It's now 3+ months later. How did it work out?

Regards,
Brad
05-25-2010 11:42 AM
DropTop
Quote:
Originally Posted by tytower View Post
Care to explain more?
My respects to OP
I wrote up a good explanation including the math behind sizing a halyard here:
New Halyards | sailingit.com – Sailing
05-25-2010 10:16 AM
mitiempo 5/8" nylon makes a good anchor line. Halyards of 3/8" are fine and big enough to be comfortable in the hands. And you never want stretch in a halyard as zz4gta posted.
05-25-2010 09:44 AM
zz4gta
Quote:
Originally Posted by tytower View Post
Care to explain more?
My respects to OP
5/8" is massive, and nylon stretches way to much to be useful as a halyard.
05-25-2010 04:50 AM
tytower
Quote:
Originally Posted by mitiempo View Post
Referring to what the original poster said..

"my main halyard is new 5/8" braided nylon"

It should not be 5/8" on a 30' boat and never nylon. 3/8" Sta-set polyester or similar is a much better choice.
Care to explain more?
My respects to OP
03-19-2010 11:30 PM
mitiempo At 10 lbs our gallons are even heavier.
03-19-2010 10:36 PM
hellosailor "1 gallon of water weighs 8.35 lbs"
Bear in mind, fresh versus salt and the spread in between.
Math Forum - Ask Dr. Math comes up with 8.34 pounds, more or less, at standard temperature and pressure (20C or 74F) for fresh water. That increases to about 8.57 pounds at 4*C.
Typical ocean salt water, about 8.55 pounds to start with. Not huge differences, but over 50-100 gallons they will add up.
03-19-2010 08:32 PM
Waltthesalt I pulled my Atomic 4 with my rigging and it was about that weight. I took the hallyard down to the mid boom and attached a come along to the hallyard for better control. The important thing is to use the boom only to push the hallyard outboard not jhold any load. If you attach the hallyard to the boom then the load to the boom you'll break the boom. In your case I think you might be able to do it with a spinnaker pole and jib hallyard but it would be problematic landing the load on you foredeck, whereas with the boom you could land it in your cockpit.
03-19-2010 03:39 PM
mackconsult 1 gallon of water weighs 8.35 lbs
So a 55 gallon drum when submerged displaces 55 gallons of water. Which means it takes 55x8.35 = 459.25 lbs to submerge the barrel. I would go with 400 lbs for a 55 gallon drum, because this calculation does not take into account the weight of the drum.

Quote:
Originally Posted by rosskowh View Post
i like the drum idea, is a 55 gallon drum enough to float a 350 lb anchor???
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