Hover or tap underlined Spanish terms to see their translation and exam tip.
Navegando a 8 nudos al rumbo verdadero 240º, tomamos al mismo tiempo marcación al Faro de Punta Carnero = 60º Estribor y marcación al Faro de Punta Almina = 80º Babor. Calcular la situación.Sailing at 8 knots on true course 240º, you simultaneously take relative bearings of Punta Carnero = 60º Starboard and Punta Almina = 80º Port. Calculate your position:
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Correct answer: a) 36º 02.3' N, 005º 20.5' W
Why it is correct
With Rv = 240º: Dv(Carnero) = 240º + 60º = 300º and Dv(Almina) = 240º − 80º = 160º. Intersecting both true bearings on the chart fixes the vessel at 36º 02.3′ N, 005º 20.5′ W.
Why the others are not
- b) Does not match the intersection of Dv = 300º to Punta Carnero and Dv = 160º to Punta Almina.
- c) Does not match the intersection of Dv = 300º to Punta Carnero and Dv = 160º to Punta Almina.
- d) Does not match the intersection of Dv = 300º to Punta Carnero and Dv = 160º to Punta Almina.
How to work it out in the exam
- Convert the relative bearings to true bearings: Dv(Carnero) = 240º + 60º = 300º and Dv(Almina) = 240º − 80º = 160º.
- Plot both lines from the lights and read their intersection: 36º 02.3′ N, 005º 20.5′ W.
Where this question comes from
- Junta de Andalucía · 2016 · 2ª convocatoria · PER Modelo A · question 43 Official paper · Official answer key
- Junta de Andalucía · 2016 · 2ª convocatoria · PER Modelo B · question 42 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.