[Sjizzle]

Originally Posted by DieReeperbahn

I don't think it even works properly and there are no instructions.

But try this:
http://www.subsim.com/radioroom/showthread.php?t=206103

what do u mean by instruction ? if u have read that thread there clear instruction how to calculate your position

Originally Posted by vdr1981

Not at all...According to Sjizzle, celestial sphere and sextant in SH5 are almost 100% correct...

yup that's true sextant and the celestial is 99% accurate