Hover or tap underlined Spanish terms to see their translation and exam tip.
Un yate quiere navegar desde un punto -A- situado en l= 35º 53,4' N - L= 006°10,0' W, hasta otro punto -B- situado a 10 millas al Norte verdadero del faro de Punta Malabata. La variación local (Dm) es 2° NW Y el desvío de aguja 12° NW. ¿Qué rumbo de aguja deberá poner?A yacht wishes to sail from point A (l = 35º 53.4' N, L = 006° 10.0' W) to point B (10 miles due North true of Punta Malabata lighthouse) with variation 2° NW and deviation 12° NW. What compass course must be steered?
Show the answer
Correct answer: b) Ra = 089º
Why it is correct
Point B, 10 miles due North of Punta Malabata (35º 48.8′ N, 005º 45.0′ W), is at 35º 58.8′ N, 005º 45.0′ W. Joining A (35º 53.4′ N, 006º 10.0′ W) to B on the chart measures true course Rv = 075º. With Ct = −2º − 12º = −14º, the compass course is Ra = 075º − (−14º) = 089º.
Why the others are not
- a) Subtracts instead of adding the 14º negative compass error or measures the reciprocal course.
- c) Subtracts instead of adding the 14º negative compass error or measures the reciprocal course.
- d) Subtracts instead of adding the 14º negative compass error or measures the reciprocal course.
How to work it out in the exam
- Plot B 10′ N of Punta Malabata (35º 58.8′ N, 005º 45.0′ W) and measure Rv = 075º from A.
- With Ct = −2º − 12º = −14º, compute Ra = 075º + 14º = 089º.
Where this question comes from
- Región de Murcia · 2026 · 1ª convocatoria · PY Tipo 1 · question 39 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.