Hover or tap underlined Spanish terms to see their translation and exam tip.
Estando en l= 50º 30' N y L= 030º 50' W, navegamos con rumbo verdadero 090º una distancia de 200 millas. Calcule la situación de llegada.At l= 50º 30' N and L= 030º 50' W, we sail on true course 090º for 200 miles. Calculate the arrival position.
Show the answer
Correct answer: b) l= 50º 30' N; L= 025º 35.5' W.
Why it is correct
Heading east latitude does not change. ΔLong = 200 / cos 50º30′ = 314.4′, or 5º 14.4′. Arrival: 025º 35.6′ W.
Why the others are not
- a) 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
- Find the difference of latitude and the departure: ΔL × cos(mean latitude).
- Course = arctan(A / Δlat). Distance = root of the sum of squares.
Where this question comes from
- Ministerio de Transportes (Madrid) · 2025 · Convocatoria de noviembre · PY Test 1 · question 31 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2025 · Convocatoria de noviembre · PY Test 2 · question 35 Official paper · Official answer key
Try it: Navigation calculations
Pending instructor review. Machine translation, not reviewed.