For, “coastal,” category navigation (no more than 2 miles from the coast,) the magnetic compass is obligatory by regulation. Prudence should demand it however, whatever the category.
Homologation Attention, certains compas dans ce catalogue ne sont pas homologués. Ils ne doivent pas servir pour la navigation mais peuvent être placés dans une cabine ou le carré pour surveiller le cap.
The right choice
One selects a compass according to function and rose diameter. It is the latter that determines ease of reading. A small rose must be close to the helmsman, the larger rose may be further away. The diameter should be chosen according to vessel size and helmsman’s position. In general a diameter of 75mm is reserved for boats of 9m and less, one of 90mm for those between 9 to 12m and one of 135mm for those larger than 12m. Of course these sizes must be related to reading distances. For good visibility one finds three types of rose: plate, conical and cylindrical. On a plate the reading
AD stores offer solutions adapted to your needs in accordance with the law in force (Decree 2009 no.2009-393 from 8th April 2009.) (See table.) -Registration numbers for ships and water vehicles. -Name of ship and registration initials for sailing vessels from 7 metres. -Dinghies: AXE + name of carrying vessel. Letters and numbers are in adhesive form. They are delivered with a support/transfer easy to use, regular spacing and perfect alignment. You can also personalise your markings. Different fonts and colours in vinyl are in the catalogue. We offer two types of adhesives: for soft shells (pneumatic) and hard (alu, polyester…) Contact your local AD stockist for order forms. Good to know: An internal identification mark is compulsory for all ships registered for the first time from 1st June 2009 and for all ships from June 20102. It consists of the registration number visible near the pilot’s position in the cockpit, the dimensions are free. Types of boat Length External
The first criterion to consider in selecting binoculars is the waterproofing. On an open shell boat, a pneumatic or simply for use in all weathers, without hesitation one must take an immersion proof model (at least 2m.) Caution; waterproofing is not simply for moored boats. A pair of waterproof binoculars will hold up better over time. It is not uncommon for prisms to be affected over winter, simply by being left on boats.
Magnification
The second point is the magnification. On a moving vessel, if the magnification is too high, the image will not be stable and framing an object almost impossible. The practical choice is a magnification of around x7. On a stable boat this may be increased to x10.
Brightness
The third criterion is the diameter of the objectives which determines brightness. It must be between 30 and 50. With these numbers we arrive at the models, 7x30 or 7x50. The larger the diameter of the lens, the more light it collects and the better the vision in poor
Navigation of less than 2 miles. No obligatory documents. Recommended Paper chart of the sailing area Navigation between 2 and 6 miles -International regulations* for preventing collisions at sea (rules of priority between vessels -Paper or electronic charts -Document on lighting system Recommended -Paper charts -List of lights* -Nautical instructions* -Annual tides* Logbook High seas navigation -International regulations* for preventing collisions at sea -Paper or electronic charts -Lighting system documents -Annual tides* -List of lights* -Logbook Recommended -Paper charts -Nautical instructions* *These documents are published annually in works such as Bloc Marine, Escales or the Breton maritime guide. These works may replace them only on condition they have on board the work of the year in course.
Paper charts and GPS
The report of a position: be it from a chart onto the GPS or vice versa, may not be done without making certain verifications, notably of the geodesic
