Anchor Question
 

On Mon, 21 Jun 2010 21:24:12 -0400, Wayne.B
wrote:

On Mon, 21 Jun 2010 18:46:59 -0600, Canuck57
wrote:

The problem: The anchor windlass has failed in some unfortunate way,
and not easily repaired. How do you retrieve your expensive anchor
and chain?

Drag the bottom with hook the right size to snag the chain.

Then what ?

You drag the end of the chain to the repaired and now working
windless.

Casady

Anchor Question
 

In article ,
says...

On Tue, 22 Jun 2010 08:00:09 -0500, Richard Casady
wrote:

On Tue, 22 Jun 2010 06:24:55 -0400, W1TEF
wrote:

Mechanical advantage would be a good way. If you used two four rove
blocks in series - that works out to something like 35 lbs (I think).
You could hang the blocks off the boom - should be solid enough for 35
lbs.

Wrong. While using a block and tackle will divide the weight among
several bits of line, the total will remain the same and that is what
the boom feels. The entire weight.

Show me where I'm wrong.

Is he saying that by using the tackle the weight on the boom will be
decreased? Who said that, Tom?

--
Rowdy Mouse Racing - We race for cheese!

Anchor Question
 

On 6/22/10 6:24 AM, W1TEF wrote:
On Mon, 21 Jun 2010 22:47:10 -0400, Wayne.B
wrote:

On Mon, 21 Jun 2010 22:24:27 -0400,
wrote:

The A-7 Polyform bouy holds 161.6 gallons of air which ~~ mumble -
mumble - carry the six, add four, times 12, price of tea in China ~~
works out to...24.8 something or other cubic feet? That right?

I'm getting about 20 cubic feet assuming 8 gallons per cube, or about
1200 pounds of buoyancy. That's a big-un, should do the trick if we
can get the chain to slip and have enough static engine thrust. Nice
solution if you've got the room for a big buoy like that. Any idea
what they cost, and what the deflated size is? A couple of them might
be useful as hurricane fenders.

http://www.polyformus.com/doc/product_a7.htm

My personal solution is to use a chain hook led to a 3,000 lb
Come-a-Long. I've tested it enough to know that it works but it would
take a while to bring up the anchor from 40 ft. The nice thing is
that Come-a-Longs are relatively cheap and don't take up a lot of
space. A multi-part block and tackle led to a chain hook or rolling
hitch should be workable also if you have enough mechanical advantage.

That was going to be my next solution. I've never had much luck
trying to snag a hunk of chain on the bottom though even at 40 feet. I
also thought we were talking deeper than 40 feet.

Mechanical advantage would be a good way. If you used two four rove
blocks in series - that works out to something like 35 lbs (I think).
You could hang the blocks off the boom - should be solid enough for 35
lbs.


Are you planning to tie an anti-gravity belt onto what you are trying to
lift with the boom? Whatever blocks you have attached to the boom, the
boom is going to "feel" the full weight of what is solely attached to
it. Of course, I was only an English major in college, not a
hard-science wizard like you...

Carry on.

Anchor Question
 

In article ,
says...

In article ,
says...

On Tue, 22 Jun 2010 08:00:09 -0500, Richard Casady
wrote:

On Tue, 22 Jun 2010 06:24:55 -0400, W1TEF
wrote:

Mechanical advantage would be a good way. If you used two four rove
blocks in series - that works out to something like 35 lbs (I think).
You could hang the blocks off the boom - should be solid enough for 35
lbs.

Wrong. While using a block and tackle will divide the weight among
several bits of line, the total will remain the same and that is what
the boom feels. The entire weight.

Show me where I'm wrong.

Is he saying that by using the tackle the weight on the boom will be
decreased? Who said that, Tom?

Now, if you hung the top block off the bow you might be able to use the
boom help pull in...

--
Rowdy Mouse Racing - We race for cheese!

Anchor Question
 

On Tue, 22 Jun 2010 06:24:55 -0400, W1TEF
wrote:

That was going to be my next solution. I've never had much luck
trying to snag a hunk of chain on the bottom though even at 40 feet. I
also thought we were talking deeper than 40 feet.

It doesn't really matter how deep the water is since you don't need to
snag the chain on the bottom. The idea is to grab the chain near the
bow roller with a chain hook or rolling hitch, then pull the chain
horizontally toward the rear of the boat using a mechanical advantage.
If you run out of purchase before the anchor is up, tie off the chain,
reset the hook near the bow roller, repeat as needed.

Anchor Question
 

In article ,
says...

On Tue, 22 Jun 2010 06:24:55 -0400, W1TEF
wrote:

That was going to be my next solution. I've never had much luck
trying to snag a hunk of chain on the bottom though even at 40 feet. I
also thought we were talking deeper than 40 feet.

It doesn't really matter how deep the water is since you don't need to
snag the chain on the bottom. The idea is to grab the chain near the
bow roller with a chain hook or rolling hitch, then pull the chain
horizontally toward the rear of the boat using a mechanical advantage.
If you run out of purchase before the anchor is up, tie off the chain,
reset the hook near the bow roller, repeat as needed.

Never thought of front to back. Thought about it from side to side, but
thought it wouldn't give you enough leverage, but just didn't follow up
thinking front to back, I would have lost my anchor...;)


--
Rowdy Mouse Racing - We race for cheese!

Anchor Question
 

On 6/22/10 10:52 AM, I am Tosk wrote:


Never thought of front to back. Thought about it from side to side, but
thought it wouldn't give you enough leverage, but just didn't follow up
thinking front to back, I would have lost my anchor...;)




How much would it cost you to replace that concrete block anchor? Just
steal another off a construction site.

Anchor Question
 

In article ,
says...

On Tue, 22 Jun 2010 09:28:10 -0400, I am Tosk
wrote:

In article ,
says...

On Tue, 22 Jun 2010 08:00:09 -0500, Richard Casady
wrote:

On Tue, 22 Jun 2010 06:24:55 -0400, W1TEF
wrote:

Mechanical advantage would be a good way. If you used two four rove
blocks in series - that works out to something like 35 lbs (I think).
You could hang the blocks off the boom - should be solid enough for 35
lbs.

Wrong. While using a block and tackle will divide the weight among
several bits of line, the total will remain the same and that is what
the boom feels. The entire weight.

Show me where I'm wrong.

Is he saying that by using the tackle the weight on the boom will be
decreased? Who said that, Tom?

No - he misunderstood the nature of the answer. Yes, the weight is
still 350 pounds. What you are effectively doing is reducing the
amount of energy required to move the 350 pounds by the use of
mechanical advantage. It seems like you are only lifting 35 pounds.

Yeah, I got that... I thought he was talking about 35 pounds on the boom
holding the tackle..;)

--
Rowdy Mouse Racing - We race for cheese!

Anchor Question
 

On 6/22/10 11:49 AM, I am Tosk wrote:
In ,
says...

On Tue, 22 Jun 2010 09:28:10 -0400, I am Tosk
wrote:

In ,
says...

On Tue, 22 Jun 2010 08:00:09 -0500, Richard Casady
wrote:

On Tue, 22 Jun 2010 06:24:55 -0400,
wrote:

Mechanical advantage would be a good way. If you used two four rove
blocks in series - that works out to something like 35 lbs (I think).
You could hang the blocks off the boom - should be solid enough for 35
lbs.

Wrong. While using a block and tackle will divide the weight among
several bits of line, the total will remain the same and that is what
the boom feels. The entire weight.

Show me where I'm wrong.

Is he saying that by using the tackle the weight on the boom will be
decreased? Who said that, Tom?

No - he misunderstood the nature of the answer. Yes, the weight is
still 350 pounds. What you are effectively doing is reducing the
amount of energy required to move the 350 pounds by the use of
mechanical advantage. It seems like you are only lifting 35 pounds.

Yeah, I got that... I thought he was talking about 35 pounds on the boom
holding the tackle..;)


Oh, sure you did. After all, you studied physics...somewhere.

Anchor Question
 

On 6/22/10 12:15 PM, Moose wrote:
wrote in message
m...
On 6/22/10 6:24 AM, W1TEF wrote:
On Mon, 21 Jun 2010 22:47:10 -0400, Wayne.B
wrote:

On Mon, 21 Jun 2010 22:24:27 -0400,
wrote:

The A-7 Polyform bouy holds 161.6 gallons of air which ~~ mumble -
mumble - carry the six, add four, times 12, price of tea in China ~~
works out to...24.8 something or other cubic feet? That right?

I'm getting about 20 cubic feet assuming 8 gallons per cube, or about
1200 pounds of buoyancy. That's a big-un, should do the trick if we
can get the chain to slip and have enough static engine thrust. Nice
solution if you've got the room for a big buoy like that. Any idea
what they cost, and what the deflated size is? A couple of them might
be useful as hurricane fenders.

http://www.polyformus.com/doc/product_a7.htm

My personal solution is to use a chain hook led to a 3,000 lb
Come-a-Long. I've tested it enough to know that it works but it would
take a while to bring up the anchor from 40 ft. The nice thing is
that Come-a-Longs are relatively cheap and don't take up a lot of
space. A multi-part block and tackle led to a chain hook or rolling
hitch should be workable also if you have enough mechanical advantage.

That was going to be my next solution. I've never had much luck
trying to snag a hunk of chain on the bottom though even at 40 feet. I
also thought we were talking deeper than 40 feet.

Mechanical advantage would be a good way. If you used two four rove
blocks in series - that works out to something like 35 lbs (I think).
You could hang the blocks off the boom - should be solid enough for 35
lbs.


Are you planning to tie an anti-gravity belt onto what you are trying to
lift with the boom? Whatever blocks you have attached to the boom, the
boom is going to "feel" the full weight of what is solely attached to it.
Of course, I was only an English major in college, not a hard-science
wizard like you...

Carry on.
Cassiday and I gave the answer around 9:05. Your English majoring helped you
to parrot the answer along with the addition of your usual snide remarks.
Carry on.




Asshole that you are, you think I read every post here? Sorry. Never was
true, never will be true.

Who is Cassiday?