Course

IIIPart III · The line of position

The intercept method

Reduce a Sun sight with Pub. 249 or by formula on a calculator: Hc, Zn and the intercept.

Start the lessonA few short pages, then a practice round.Skip: try one problemGet it right and move on. Miss it and we start the lesson.Go back: The assumed position and LHARevisit the previous module first.