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Situados a 3 millas al Nv del faro de Punta Almina, damos rumbo verdadero hacia la luz roja del extremo del espigón del puerto de Algeciras con velocidad de 11 nudos. ¿Cuál será nuestro rumbo verdadero?Positioned 3 miles due North true of Punta Almina lighthouse, you set course for the red light at the end of Algeciras port breakwater at 11 knots. What is your true course?

Show the answer

Correct answer: a) 327º

Why it is correct

From the point 3 miles due North of Punta Almina (35º 57.0′ N, 005º 16.5′ W) to Algeciras breakwater red light (36º 07.5′ N, 005º 25.4′ W), measuring the track line with a protractor gives true course Rv = 327º.

Why the others are not

  • b) Does not match the true course Rv = 327º between 3′ N of Punta Almina and Algeciras.
  • c) Does not match the true course Rv = 327º between 3′ N of Punta Almina and Algeciras.
  • d) Does not match the true course Rv = 327º between 3′ N of Punta Almina and Algeciras.

How to work it out in the exam

  1. Plot the point 3 miles North of Punta Almina lighthouse (35º 57.0′ N, 005º 16.5′ W).
  2. Join that point to Algeciras red light and measure the true course: Rv = 327º.

Where this question comes from

Try it: Navigation calculations

Pending instructor review. Machine translation, not reviewed.