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A HRB = 16-20 en situación l = 35º 56,5’ N, L = 005º 17,0’ W se pone rumbo a un punto situado en l = 36º-16,0’ N, L = 005º-12,0’ W, dm =3º NW, Desvío = 5º NW. Calcular el Ra.At ship's time 16-20 at l = 35º 56.5'N, L = 005º 17.0'W we head for a point at l = 36º 16.0'N, L = 005º 12.0'W, dm = 3º NW, Deviation = 5º NW. Calculate the Ra.
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Correct answer: b) Ra = 020º
Why it is correct
True course: about 012º. Total correction: −3 − 5 = −8. Ra = 012 + 8 = 020.
Why the others are not
- a) That is the true course, uncorrected.
- c) It applies the correction with the wrong sign.
- d) This does not follow from the data.
How to work it out in the exam
- Rv = Ra + Ct, so Ra = Rv − Ct.
Where this question comes from
- Junta de Andalucía · 2015 · 2ª convocatoria · PER Modelo A · question 44 Official paper · Official answer key
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Pending instructor review. Machine translation, not reviewed.