How much weight for a secure mooring?
 

"HK" wrote in message
. ..
Don White wrote:
"HK" wrote in message
. ..
wrote:
On Wed, 9 Apr 2008 09:54:26 -0400, "Eisboch" wrote:

wrote in message
...
On Apr 9, 12:30 am, Wayne.B wrote:
On Tue, 08 Apr 2008 22:49:32 GMT, "Jessica"
wrote:
I have a 15' 500 pound sailboat. How much weight would be required
for a
secure mooring in a small lake?
The old rule of thumb for mooring weight is 10 pounds per foot of
boat
length. If you are on a small protected lake you could probably get
by with less unless your area is prone to very strong wind storms.
Hmm, that's quite a bit different than Eisboch's take on things. I'm
going to keep track of this thread to see what shakes out, it's
something I know little about and want to know more!

---------------------------

Remember .... I said I didn't know and took a guess based on what I
see in a couple of local harbor mooring fields.
I am doubtful that the blocks weigh much more than 600 lbs, based on
the floating contraptions used to set them or haul them out.

Eisboch

A block mooring needs to be a lot heavier than a mushroom in my
opinion. The mushroom is designed to bury itself, which increases it's
holding power.



Back in the 1950s, we used 100-pound mushroom anchors and chain with
stainless steel beer barrels for moorings in Long Island Sound. These
were typically for boats to about 21' LOA. They held, even in
hurricanes, though anyone with a brain moved his boat inshore or onshore
when a big storm was a'brewing. We'd yank the moorings at the end of the
season.

An old favourite around here was an engine block... or a 45 gal barrel
filled with concrete and steel rebar sticking out to prevent rolling.


Any moorings in the Bay of Fundy? :)

Yup. My former brother-in-law sailed with a local doctor out of the Digby
yacht club.
We had to go out on the big fishermans wharf where the dinghy was tied up.
From there we rowed out to the mooring field for club races.
http://www.rwnsyc.ca/

How much weight for a secure mooring?
 

On Wed, 9 Apr 2008 10:04:27 -0400, "Eisboch" wrote:

Wayne is much closer than I according to this:

Minimum deadweight mooring weight:

Vessel length:

10 - 17 1000 lbs.
18 - 26 1500 lbs.
27 - 35 3000 lbs.
36 - 45 4000 lbs.
45 - 55 5000 lbs.

Submerged Weight Calculations

Concrete = required weight /.55 (example 1000 lbs./.55 = 1818 lbs.)
Granite = required weight /.64

http://www.harbormasters.org/rockport/mooring.shtml

The rule of thumb that I quoted (10 lb/ft) is for steel mushroom
moorings. Since they have a higher density than rock or concrete, and
tend to dig in faster, you can get by with less weight.

How much weight for a secure mooring?
 

Jessica wrote:
I have a 15' 500 pound sailboat. How much weight would be required for a
secure mooring in a small lake?


Besides dead weight you also have to worry about a few other factors.

Here's a link to get you started if you are unsure.

http://www.boatus.com/boattech/casey/34.htm

My 21 ft sailboat moved a barrel weighing over two hundred pounds.
Wind, waves and a line that was too short.

LdB