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Title: ahoy there sailor Post by: gatso on December 19, 2007, 07:43:27 PM something that's been puzzling me, how the hell do anchors work?
you throw them in the water and they snag on the nearest rock/crashed boat etc- that bit I get but how do you get them back? you can't just pull on the chain and expect it to let go so what's the deal? Title: Re: ahoy there sailor Post by: Claw75 on December 19, 2007, 07:49:41 PM sorry I've had a drink. apologies in advance for all my rubbish posts tonight :D
Title: Re: ahoy there sailor Post by: kinboshi on December 19, 2007, 08:07:11 PM I remember reading something about this ages ago. I'm sure when the chain attached to the anchor is vertical, the anchor can be easily pulled free (via a winch) from the sea-bed. It's only when it's being pulled at an angle that it lodges itself.
That is probably very wrong... Title: Re: ahoy there sailor Post by: Claw75 on December 19, 2007, 08:09:25 PM I reckon it's coz they're kept in the fridge on the boat, then soften a bit in the warm sea.
Title: Re: ahoy there sailor Post by: gatso on December 19, 2007, 08:15:05 PM I remember reading something about this ages ago. I'm sure when the chain attached to the anchor is vertical, the anchor can be easily pulled free (via a winch) from the sea-bed. It's only when it's being pulled at an angle that it lodges itself. That is probably very wrong... so you have to drive the boat 'til it's above the anchor? that kinda mades sense but what if it's hooked under something. I was trying to work it out by thinking about a grappling hook i reverse. you couldn't pull that free by making the rope vertical (and wouldn't want to 'cos it'd fall on your head) Title: Re: ahoy there sailor Post by: Geo the Sarge on December 19, 2007, 08:21:41 PM Nothing to do with snagging on objects and doesn't even have to reach the sea bed I believe.
Anchor is dropped when engines stopped. The weight of the anchor allows it to remain almost in place but with some drifting. The ship can still revolve around the anchor. I remember when I went dinghy sailing the "anchor" was a mere plastic object which you threw overboard which stayed in place, no great weight in it but it was the way it was designed to allow water to flow through which produced some form of dragging which in effect kept the dinghy almost in the same place (I think the equpment may even have been called a drag, so long ago.) Geo Title: Re: ahoy there sailor Post by: RED-DOG on December 19, 2007, 08:23:31 PM It doesn't hook onto something, it digs into the sea bed like a plough. The further you try to drag it, the deeper it sinks.
If you haul it straight up,(as a farmer lifts his plough) it lifts easily. Title: Re: ahoy there sailor Post by: gatso on December 19, 2007, 08:46:19 PM cheers guys. and I spent all those years thinking you had to aim anchors at rocks on the seabed
Title: Re: ahoy there sailor Post by: Dewi_cool on December 19, 2007, 08:49:02 PM >:?
Title: Re: ahoy there sailor Post by: MKKfish on December 19, 2007, 08:55:37 PM This may explain better gatso...
http://www.youtube.com/watch?v=zoU1HczQJQM |