Hover or tap underlined Spanish terms to see their translation and exam tip.
Navegamos a 8 nudos al rumbo de aguja 298º en ausencia de corriente, pero con viento del SW, que nos produce un abatimiento de 10º. Declinación magnética = 3º NW y desvío de la aguja = ‒5º (menos). Calcular que rumbo hacemos sobre el fondo.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.
Show the answer
Correct answer: a) 300º
Why it is correct
Total correction = −3º − 5º = −8º, so true 290º. On 290º, a SW wind comes from port and pushes to starboard: 290º + 10º = 300º.
Why the others are not
- b) It subtracts leeway, but the wind is to port.
- c) It does not match the working.
- d) It does not match the working.
How to work it out in the exam
- Wind to port: add. To starboard: subtract.
Where this question comes from
- Junta de Andalucía · 2016 · 1ª convocatoria · PY Módulo de navegación · question 15 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.