Dead Reckoning

I discovered I have been going around in circles! I thought I found something that I had been looking for, but . . .well . . . upon closer inspection, I determined it was something I had already found and discarded the day before.

Quick's the word and sharp's the action!
Beat To Quarters!


Dead Reckoning
–noun Navigation.
1. calculation of one's position on the basis of distance run on various headings since the last precisely observed position, with as accurate allowance as possible being made for wind, currents, compass errors, etc.
2. one's position as so calculated.