PY Módulo de navegación, Andalucía 2026

Junta de Andalucía · 2ª convocatoria · 20 questions

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• Why is Polaris especially suitable for finding the compass total correction (Ct)?
• Sailing with current but no wind, what is the angle between the centreline and the track over the ground called?
• On a GNSS screen, what does XTE mean?
• What is the Automatic Identification System (AIS)?
• At HRB 08:00 steering compass course Ra = 296º, you cross the opposition line of Cape Trafalgar and Punta Camarinal lighthouses and observe Cape Trafalgar at compass bearing Da = 303º. Calculate the total compass error:
• Steaming on true course 070º at 6 knots in an unknown current, at HRB 09:00 Punta Carnero bears 090º Port at 6 miles, and at HRB 10:30 Punta Almina bears Dv = 183º at 5.2 miles. Calculate Rc and Ihc:
• At ship’s clock 13:00 on 12 June 2026, we are at 28° 44.0′ N, 178° 52.0′ E. We sail at 10 knots: true course 280° for 7 hours, true course 360° for 3 hours. Throughout, a current sets NW at 3 miles an hour, constant to the end. Calculate the position at 23:00 on 12 June 2026.