Position Fixing with Neither Dead Reckoning nor GMT

W. B. Fu
1987 Journal of navigation  
This is a short summary of a paper which shows what a navigator can do to fix his position at sea using basic equipment (sextant, hand-held compass, almanac, four-figure mathematical tables) without the help of dead reckoning or the benefits of GMT.
doi:10.1017/s0373463300000643 fatcat:uk6fodfhafcjjmvdlorioap72e