SVN solovelanet: rivista digitale dedicata al mondo della vela. Articoli di navigazione, di nautica e barche a vela
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63 of 4m, you should use 12m warps which will be reasonably tight at high water. Then, when the tide falls, you will need to allow about 0.7m of extra rope. If you provide this slack in advance you will not need to take any further precautions. As always, evaluating from time to time and adopting the right compromise is the key to any business. Sitting on the keel As far as possible you must avoid sitting on your keel in low water. Therefore after consulting the tide tables choose a pla- ce where your boat will stay afloat at low tide. The Nautical Almanac will provide you with the necessary pilotage notes, tables, tidal curves and lots of other es- sential information. Classic long keels or double-keeled hulls can normally afford to sit on the sea bed but, if in any doubt, you should contact the manufacturer of your boat to check if this is the case. However, having said all this some mari- nas run completely dry at low water, ma- king it necessary to prepare to lay cor- rectly on your keel. After you have checked that the fenders are positioned correctly, the trick is to make sure that the boat will lean approxi- mately 5 degrees into the quay when sit- ting on her keel, ensuring that she will not lean away from the wall. To do this we can shift the gear so that it will weigh down the dock-facing side of the boat, or alternatively we can connect the spinnaker or mainsail halyard safely to a bollard and then grind-in towards the dock from the masthead. Once the tide has gone out, the moo- ring warps must be adjusted following the same principles: a short mid-ship line, then normal bow and stern lines and springs. Now you will be able to inspect seacocks or clean the hull without having to pay a diver or haulage! Leaving a berth Before attempting to move off, a good skipper will check the direction and speed of the water around the boat. R eeds Nautical Almanac is the indispensable trusted annual compendium of navigational data for yachtsmen and motorboaters and pro- vides all the information required to navigate Atlantic coastal waters around the whole UK, Ireland, Channel Islands and the entire Europe- an coastline from the tip of Denmark right down to Gibraltar, Northern Morocco, the Azores and Madeira. The 2020 edition continues the Almanac's tra- dition of year on year improvement and meti- culous presentation of all the data required for safe navigation. Now with an improved layout for easier reference and with over 45,000 annual changes, it is regarded as the bible of almanacs for anyone going to sea. Every edition is meticulously updated, containing over 45,000 changes, and includes: 700 harbour chartlets, Harbour facilities, Tide tables and tidal streams, Buoyage and lights, 7,500 waypoints, Invaluable Passage notes, Area planning charts, Rules of the road, International codes and flags, Radio information, Communications, Safety, Mayday and distress procedures, and Docu- mentation and Customs, Distance tables, Wea- ther information and a First aid manual. Reeds nautical almanac