How
to find G.M.T. for Navigational Sums
Time
at ship
Longitude (arc to time in almanac) (add West, subtract East)
G.M.T.
Mean
time at ship (M.T.S.)
Longitude (arc to time in almanac) (add West, subtract East)
G.M.T. .
For
Amplitude Sums
Sunrise
(Between Twilight and Moonrise Columns at top of page)
Longitude (arc to time in almanac) Add West, subtract East)
G.M.T. .
Sunset
(between Lat and Twilight columns half way down the page)
Longitude (arc to time in almanac) (add West, Subtract East)
G.M.T. .
Chronometer
time
Chronometer error (if fast take away if slow add it)
Correct Chronometer time |
