[Jade Falcon]

Some pretty wild stuff.

Can any ship-knowledgable people here tell us what it is that they are cranking by hand? It looks like a brake of some sort....?

And how do ship anchors work? I always assumed that they sat on the bottom of the sea-bed to effectively "mount" the ship in place.

Here's another one. Far more spectacular.

This one seems to have stopped at the end:

Apparently, a 1st Lt was trying to show off but almost managed to lose the entire thing. According to the description:

Taken in 2008 aboard the USS George Washington.

I imagine that was worth an ass-chewing or two.

 

[Gunboat1]

The hand crank is for a friction brake on the chain wildcat. The name is self explanatory if you watch the video. Dangerous stuff.

Anchors work by digging into the sea bed, but having a long length of chain out does most of the work- usually 5-7 times the water depth, more if weather or bottom composition are poor. That is called "scope." The chain and anchor hold the ship in a general location, but allow it to swing in a circle as tide and wind change.

 

[Jade Falcon]

The hand crank is for a friction brake on the chain wildcat. The name is self explanatory if you watch the video. Dangerous stuff.

Anchors work by digging into the sea bed, but having a long length of chain out does most of the work- usually 5-7 times the water depth, more if weather or bottom composition are poor. That is called "scope." The chain and anchor hold the ship in a general location, but allow it to swing in a circle as tide and wind change.

Thanks for that! Indeed, I've learned something today.

ETA: So when the anchor is lost, does that mean the brake fails, or is the seabed deeper than the length of the chain?

 

[Gunboat1]

You're most welcome.

 

[aircarver]

So with no nautical background, it appears to me that after a certain length of chain, the friction brake overheats, catches fire, and fails ! :wow:
I assume a hydraulic motor hauls the chain up, why can't it be throttled to do the work of retarding it going out. The friction brake can then be redundant clamp up.

 

[Wishoot]

Many years of boating taught me that Ship Happens whenever you pull out of dock.

 

[Sgt127]

I can't imagine the sound of that in a steel room.

Like listening for problems in a Vulcan gun with a stethoscope.

 

[J. Gambolputty]

They should tie a knot on the end of those things.

 

[Bruce M]

http://www.glocktalk.com/threads/anchors-aweigh.1646925/#post-23805808

 

[Jade Falcon]

http://www.glocktalk.com/threads/anchors-aweigh.1646925/#post-23805808

Oh wow...that's like a double-jambog!

Thanks for that. I feel dumb now. :frown:

 

[kirgi08]

Thought so.'08.

 

[Binge&Purge]

Oh wow...that's like a double-jambog!

Thanks for that. I feel dumb now. :frown:

I think that is a triple jambog. You jambogged a jambog.

 

[Steel Head]

Jambogled?

 

[kirgi08]

Oh wow...that's like a double-jambog!

Thanks for that. I feel dumb now. :frown:

No anime/soup for you.'08. :rant:

 

[Jade Falcon]

No anime/soup for you.'08. :rant:

 

[kirgi08]

:tequila:

 

[Jade Falcon]

:tequila:

You can't drink your way out of this!

 

[kirgi08]

Youse bogged yerself into this,not I.'08.

 

[cowboywannabe]

in the best weather conditions you need at least three times the anchor chain as the water depth. this breaks down to equal parts of the lay, the rise, and the chafe.

 

[itisbruno]

On a much smaller scale ... I hate it when my anchor gets fouled. I cannot holdmy breath as long as I could when I was a kid ... had to start carrying spare air on the boat.