A ship in the evening departs for an island 46 miles to the WSW but by a strong tide running to the southward she found herself next morning on a shoal 65 miles from her departed port and 34 miles from the island. Required the Bearing of her port and the setting of the tide?
Case
Given the difference of longitude and its corresponding meridional distance. Required the parallel of lattitude.
Example
In what latitude does 304 miles meridional distance answer to 500 miles of difference of longitude?
Problem
Given one latitude course and distance
Required the other latitude and difference of longitude
Example
A ship takes her departure from a place in Lat:d 51.10N longitude 9.50 W and steers S 33.00W till she has ran 102 miles
Required her present latitude and longitude?
Problem
Given one latitude the distance & departure
Required the other latitude course & diff of longitude
Example
A ship from the latitude 37.00N longitude 9.02W having sailed between the N & W 1027 miles reckons she has made 564 miles of departure
What was her direct course & the present lat’d & longitude?