thanks gap
no need to delete
now i am working on celestila fix position wich is a bit complicated ....
wich one need some math knowledge
Edit:
HO. 229 book
A very accurate method. It is produced in a six volume series. This course uses volume 3. The tables are used with the Nautical Almanac to obtain elements necessary to obtain position at sea. It is a straight forward method and requires no mathematical calculation beyond addition and subtraction of degrees and minutes and decimals of minutes. A popular method.
idk if they have it in WW II