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Displaying items by tag: Four Pots

Waterways Ireland advises users of the Grand Canal Greenway that the greenway section from Digby Bridge to Sallins in Co Kildare will remain closed until the end of February for continued works on restoring the Four Pots overflow structure.

As previously reported on Afloat.ie, the Four Pots is a unique structure located alongside the Grand Canal towpath between the Leinster Aqueduct and Digby Bridge.

Its four circular channels of varying depth helped reduce the water pressure and volume rate before discharge from the canal back to the River Liffey through a series of channels, the cross-border body for Ireland’s inland waterways says.

Published in Inland Waterways

Waterways Ireland advises users of the Grand Canal Greenway that the greenway section from Digby Bridge to Sallins in Co Kildare will remain closed until the end of January 2023 for continued works on restoring the Four Pots overflow structure.

As previously reported on Afloat.ie, the Four Pots is a unique structure located alongside the Grand Canal towpath between the Leinster Aqueduct and Digby Bridge.

Its four circular channels of varying depth helped reduce the water pressure and volume rate before discharge from the canal back to the River Liffey through a series of channels, the cross-border body for Ireland’s inland waterways says.

Published in Inland Waterways

Waterways Ireland advises users of the Grand Canal Greenway that the section from Digby Bridge to Sallins in Co Kildare will be closed from Monday 28 November to Tuesday 20 December in order to facilitate the restoration of the Four Pots overflow structure.

The Four Pots is a unique overflow structure located alongside the Grand Canal towpath between the Leinster Aqueduct and Digby Bridge, the cross-border body for Ireland’s inland waterways says.

No longer in use, this ingenious overflow system has four circular channels of varying depth that helped reduce the water pressure and volume rate before discharge from the canal back to the River Liffey through a series of channels.

Published in Inland Waterways

About Quarter Tonners

The Quarter Ton Class is a sailing class of the International Offshore Rule racing the Quarter Ton Cup between 1967 and 1996 and from 2005 until today.

The class is sailed by smaller keelboats of similar size and is likely the world's most-produced keelboat class.

The Ton, Half, Quarter, etc. 'classes' were each given a 'length' and yacht designers had almost free rein to work the hull shapes and measurements to achieve the best speed for that nominal length.

The Ton Rules produced cranky and tender boats without actual downwind speed. Measurement points created weird, almost square hull shapes with longish overhangs.

They were challenging to sail optimally and lost value very quickly as any new wrinkle (e.g. 'bustles') to take advantage of the rule made older boats very quickly uncompetitive.

Although its heyday was 30 years ago, the boat class continues to make its presence felt by holding its own in terms of popularity against some fern race fleets.