Question 1

A transit (two charted objects in line) gives you…

Accepted Answer

A position line without a compass — Two objects in line define an exact line of position, immune to compass error — gold for pilotage and checking compass deviation.

Question 2

Hand-bearing compass bearings used for a fix should ideally cut at…

Accepted Answer

About 60–90° to each other — Wide cuts make a small “cocked hat”; shallow cuts multiply small bearing errors into big position errors. Three bearings beat two.

Question 3

GPS gives you, directly, your…

Accepted Answer

Position, course and speed over the ground — Satellites fix position; from successive positions come COG and SOG — over the ground, tide included. Speed through the water comes from the log; heading from the compass.

Proving where you are

This lesson is part of a paid course