Spanish original · English

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

Rumbo inicial para navegar por ortodrómica desde el punto 25º N, 110º W hasta el punto 45º N, 156º E. (redondear al grado)Initial course to sail by great circle from 25º N, 110º W to 45º N, 156º E. (round to the degree)

Show the answer

Correct answer: a) 313º

Why it is correct

We go west and north: initial course 313º.

Why the others are not

  • b) It does not match the working.
  • c) It does not match the working.
  • d) It does not match the working.

How to work it out in the exam

  1. tan R = sin ΔL / (cos l1 tan l2 − sin l1 cos ΔL).
  2. Convert the result to circular by the direction of travel.

Where this question comes from

Try it: Sight reduction

Pending instructor review. Machine translation, not reviewed.