Progress
EspañolDeutsch

Spanish original · English

Hover or tap underlined Spanish terms to see their translation and exam tip.

El día 18 de abril queremos realizar una navegación desde Tánger a Ceuta. Una vez en franquía del puerto de Tánger y tras navegar varias millas a varios rumbos, al ser Hrb= 10:30, nos encontramos en la enfilación Punta Malabata - Luz del extremo del espigón del puerto de Tánger y a 5 millas de Punta Malabata. Situados, damos rumbo de aguja al 068º (Ct= +2º). Tras navegar durante una hora y media, ponemos rumbo a la luz roja de entrada al puerto de Ceuta. Teniendo en cuenta que la velocidad de nuestra embarcación es 10 nudos, se pide la situación estimada al ser Hrb= 12:15.At 10:30 on the Punta Malabata–Tangier breakwater leading line at 5 miles from Malabata, you steer Ra = 068º (Ct = +2º) at 10 knots for 1.5 h, then head for Ceuta red entrance light. Find your DR position at 12:15:

Show the answer

Correct answer: c) l = 35º 55.6' N; L = 005º 20.2' W.

Why it is correct

On the Tangier–Malabata leading line 5 miles NE of Malabata (35º 51.4′ N, 005º 39.7′ W), running 1.5 h (15 miles) on Rv = 068º + 2º = 070º reaches 35º 56.5′ N, 005º 22.3′ W at 12:00. Running 2.5 miles (15 min) from there towards Ceuta red light gives l = 35º 55.6′ N, L = 005º 20.2′ W at 12:15.

Why the others are not

  • a) Does not match the position after the 15-mile leg on 070º and 2.5 miles towards Ceuta.
  • b) Does not match the position after the 15-mile leg on 070º and 2.5 miles towards Ceuta.
  • d) Does not match the position after the 15-mile leg on 070º and 2.5 miles towards Ceuta.

How to work it out in the exam

  1. Plot the start on the Tangier–Malabata alignment 5′ from Malabata and run 15 miles on Rv = 070º (12:00).
  2. From there, lay course for Ceuta and measure 2.5 miles (15 min at 10 knots): 35º 55.6′ N, 005º 20.2′ W.

Where this question comes from

Try it: Navigation calculations

Pending instructor review. Machine translation, not reviewed.