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The granddaddy of all locks


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#1 Chrisc

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Posted 06 August 2018 - 06:52 AM

....and I had to get my paintbrush out to repair the scrapes after transiting.IMG_20180802_151719756_HDR.jpg IMG_20180802_152104572.jpg

And a bikini babe who offered to pose for me..
20180805_183212.jpg
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Young at heart.
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#2 SloopJohnB

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Posted 06 August 2018 - 08:15 AM

Crikey whats the lift of that lock 15 plus meters?


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"With age comes wisdom .... and with wisdom comes the knowing when to avoid perfection!"


#3 muzled

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Posted 06 August 2018 - 09:04 AM

oh no!  What's been seen can't be un-seen...


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#4 Knot Me... maybe

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Posted 06 August 2018 - 01:49 PM

Holy crap, to think there is a river worth of water behind those 2 tall doors is a little disconcerting.


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#5 Steve Pope

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Posted 06 August 2018 - 03:30 PM

interesting to see the old style life jacket on the guy (skipper?) on the boat in front. Is it usual for folk to wear life jackets when using the canals?


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#6 harrytom

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Posted 06 August 2018 - 07:54 PM

Holy crap, to think there is a river worth of water behind those 2 tall doors is a little disconcerting.

you would want to be sure that the lock behind you is secure.


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The boss said "see you in the morning"didnt know he liked sailing

#7 SloopJohnB

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Posted 06 August 2018 - 10:00 PM

As long as you don't pull the red one. :roll:


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"With age comes wisdom .... and with wisdom comes the knowing when to avoid perfection!"


#8 Chrisc

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Posted 07 August 2018 - 07:41 AM

A good estimate SJB, 15.6 metres average rise and fall according to the cruising guide.
Something I should correct KM, the canal before and after the lock is only 2.5 - 3.0 metres deep but the fall between the two levels is 15 metres. In the photo from inside the lock, you are looking towards the high end and it is all concrete - the lock doors are the little metal bits with the holes in them on top. So when the lock is full the little doors open and you sail out over the concrete sill. So the doors are not holding back any more water than a lock of 2 or 3 metres rise and fall.
Concerning lifejackets, they are meant to be worn in all locks but only enforced in this one.
In my previous post I mentioned complacency and coming unstuck like my buddy Manfred did.
In our experience all locks fill from the high end - open the sluices in the front doors and the water flows into the chamber until the high end level is reached. We were at the back end of the lock away from the turbulence so my securing was a little casual. However this lock had something called a surge chamber beneath the main chamber and it filled, very violently, from the back. I didn't have enough turns around the bollard and I couldn't hold her and we swung out 45 degrees to the lock wall and I was treated to the sound of my pulpit grinding up 15 metres of lock wall. The steel was shiny by the time we got to the top.
One of the hardest things is taking your own advice.
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#9 Puff

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Posted 07 August 2018 - 06:36 PM

This is the mother of all locks, wrong country I know

 

https://en.wikipedia...i/Falkirk_Wheel

 

 

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#10 Black Panther

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Posted 07 August 2018 - 07:14 PM

That wheel is great. We spent nearly half a day eating junk food and watching it go round.
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“If we don’t change our direction, we will end up where we are headed.”

 




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