Ability to navigate by dead reckoning.
Use of Chip log.
Use of patent log.
Adjustments of a sextant.
Use of an azimuth circle.
Use of Sir William Thompson’s sounding machine.
How to obtain chronometer rate by tick at noon.
Navigation (Nautical Astronomy, Sights, etc.)
Ability to take and work out the following sights of the sun:
Meridian altitude, time sight for longitude, obtain error of compass.