This chart is also available in kilometers. Average driving times between key centers in ireland are as follows: Dublin-Cork: 2.75 Hours. Dublin-Limerick: 2.5 Hours. Cork-Limerick: 1.5 Hours. Dublin-Killarney: 4 hours. Dublin-Belfast: 1.5 hours. Dublin-Galway: 2.75 hours. Dublin-Derry: 3.5 hours.
The anchor is generally attached to a rope or a chain. After the full length of the anchor has been dropped the ship or the boat must go reverse this will ensure that the anchor digs into the sea bed. The reversing in ship is called going astern. Once you do this the ship will be anchored completely. This is the same process that can even be followed for a boat.
Consult the manufacturer of your anchor for an answer to these questions. The size, displacement, type of boat and its intended use are important considerations. Often you have one main anchor, one storm anchor (a size or two up from your boat requirement) and one lunch anchor (a size or two down).