PY Módulo de navegación, Andalucía 2016

Junta de Andalucía · 1ª convocatoria · 20 questions

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• The water track is:
• The acronym SOG on a GNSS unit stands for:
• When is your latitude 0º?
• If magnetic variation is zero, the compass course equals:
• On a transit of two lighthouses, the total correction found from its bearing applies to:
• Sailing directions can be corrected with:
• AIS can be an important aid to preventing collisions:
• Steaming at 8 knots on true course 060º, at 11:00 Cape Spartel lighthouse bears 123º at 4 miles, and at 12:30 you are 5 miles due North true of Punta Malabata lighthouse. Calculate the set and drift of the current:
• We sail at 8 knots on compass course 298º with no current, but with a SW wind giving 10º of leeway. Magnetic variation = 3º NW and compass deviation = –5º (minus). Calculate the course made over the ground.
• On 9 April 2016 on the Punta Alcázar–Punta Cires leading line and due East true of Punta Carnero, you head to pass 3 miles off Isla de Tarifa at 8 knots in a current Rc = SE, Ihc = 3 knots (chart dm 05º 00' W 2006 (6' E), dev –8º). Find Ra:
• Calculate the direct course to sail from 29º 15' S, 179º 35' W to 25º 20' N, 178º 15' E.
• Assuming Polaris coincides with the North Pole, you observe a compass azimuth of Polaris = 005º. Calculate the total compass error: