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Re: Kelgate 4 pot brake. Rear axle.
Posted by 'SimonS' on 05 Dec 2014 @ 18:58


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SimonS
Joined: December 2004
Total Posts: 4
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Anchoring a ship is a delicate manoeuvre!

Anchors work by laying a weight of cable on the seafloor, not by holding on to the seabed via the flukes.

So when anchoring you first have to reduce speed. This is so that the anchor does not 'tow' like a waterskier (some time ago a ship slipped an anchor too fast and the anchor struck the hull of the ship, some 200 feet aft).

Then when the anchor hits the seabed it moves enough to bury the anchor and stop it moving, while the ship carries on forward, dragging out the cable straight. As a rough rule, you lay out 8 times the depth of water in cable (anchor cable is what some people call chain).

Then the ship stops moving (because the engines have been going astern) and the ship drifts backwards until the chain hangs more or less up and down; the ship 'has her cable'.

The wind, tide and current will move the ship within the swinging circle, essentially a circle with the radius of the length of cable from where the anchor was dropped plus the distance from the hawse hole to the bridge. The Officer of the Watch will check frequently that the ship is still inside the swinging circle.

To a degree, stopping a kart is much like anchoring. You need to be at the right speed, you need to apply the brakes judiciously and exactly at the right place, you need to check that you are where you ought to be and you need to know a) what to do next and b) what to do if the manoeuvre isn't working.

But we know what you meant! :-)

Message Thread:

Kelgate 4 pot brake. Rear axle.  by 'DCharity'   (02 Dec 2014 @ 21:16)
Kelgate 4 pot brake. Rear axle.  by 'positivekarter'   (02 Dec 2014 @ 21:43)
Re: Kelgate 4 pot brake. Rear axle.  by 'd-i-y71'   (04 Dec 2014 @ 9:25)
Re: Kelgate 4 pot brake. Rear axle.  by 'DCharity'   (04 Dec 2014 @ 10:33)
Re: Kelgate 4 pot brake. Rear axle.  by 'alanrr'   (04 Dec 2014 @ 10:56)
Re: Kelgate 4 pot brake. Rear axle.  by 'alanrr'   (04 Dec 2014 @ 10:42)
Re: Kelgate 4 pot brake. Rear axle.  by 'DCharity'   (04 Dec 2014 @ 13:23)
Re: Kelgate 4 pot brake. Rear axle.  by 'SimonS'  << You are here!
Re: Kelgate 4 pot brake. Rear axle.  by 'DCharity'   (06 Dec 2014 @ 11:42)
Re: Kelgate 4 pot brake. Rear axle.  by 'positivekarter'   (06 Dec 2014 @ 18:38)
Re: Kelgate 4 pot brake. Rear axle.  by 'd-i-y71'   (06 Dec 2014 @ 19:55)
Kelgate 4 pot brake. Rear axle.  by 'positivekarter'   (10 Dec 2014 @ 22:14)
Re: Kelgate 4 pot brake. Rear axle.  by 'd-i-y71'   (11 Dec 2014 @ 11:31)

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