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

Siendo el punto de salida A (l= 35º 45´N; L= 006º 30´W) y el punto de recalada B (l= 36º 04’N; L= 004º 55’W), indique cuál de las siguientes respuestas más se aproxima al Rumbo directo y la distancia entre ambos puntos.With departure point A (l= 35º 45´N; L= 006º 30´W) and landfall point B (l= 36º 04’N; L= 004º 55’W), which answer is closest to the direct course and distance between them?

Show the answer

Correct answer: d) Course= 076º, Distance= 79.2 miles.

Why it is correct

Δlat = 19′ N. Departure = 95′ × cos 35º54′ = 77′. Course 076º, 79.3 miles.

Why the others are not

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

How to work it out in the exam

  1. Find the difference of latitude and the departure: ΔL × cos(mean latitude).
  2. Course = arctan(A / Δlat). Distance = root of the sum of squares.

Where this question comes from

Try it: Navigation calculations

Pending instructor review. Machine translation, not reviewed.