Hover or tap underlined Spanish terms to see their translation and exam tip.
A Hora del Reloj de Bitácora (HRB)= 08:30 navegamos al Ra = 096º, Ct= 6° NW, y en ese instante tenemos por la proa al faro de Punta de Gracia y por nuestro través de babor, al faro de Trafalgar. ¿En qué posición nos encontramos?With Punta de Gracia dead ahead and Trafalgar abeam to port at 08:30 while steering Ra = 096º (Ct = 6° NW), what is your charted position?
Show the answer
Correct answer: a) 36º 05.4' N - 006º 02.0' W
Why it is correct
With Ra = 096º and Ct = −6º, true course is Rv = 090º (due East). Having Punta de Gracia dead ahead (Dv = 090º) fixes latitude at l = 36º 05.4′ N, and having Trafalgar abeam to port (Dv = 000º) fixes longitude at L = 006º 02.0′ W.
Why the others are not
- b) Does not match the intersection of the Punta de Gracia parallel (36º 05.4′ N) with the Trafalgar meridian (006º 02.0′ W).
- c) Does not match the intersection of the Punta de Gracia parallel (36º 05.4′ N) with the Trafalgar meridian (006º 02.0′ W).
- d) Does not match the intersection of the Punta de Gracia parallel (36º 05.4′ N) with the Trafalgar meridian (006º 02.0′ W).
How to work it out in the exam
- Compute Rv = 096º − 6º = 090º ⇒ parallel of Punta de Gracia (36º 05.4′ N).
- With Trafalgar abeam to port (Dv = 000º), read its meridian: 006º 02.0′ W.
Where this question comes from
- Región de Murcia · 2025 · 1ª convocatoria · PER Tipo 1 · question 43 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.