In 1961, we still used the three point sextant fix for accurate bathymetric surveys. The three points are landmarks A, B and Cfor example, a lighthouse, a stack and a prominent tree. One sextant operator, say Fran Shepard, shoots the horizontal angle A-B, the other (e.g.I myself), simultaneously shoots angle B-C. The angles are recorded (say, by Elizabeth Shepard) and plotted using a 3 arm protractor (since that time, made available in plastic thanks to Japanese ingenuity).
I noticed that Elizabeth acknowledged every reading we called in by intercom (one a minute each) by climbing up on the counter, turning the switch and shouting "AYE AYE", after which she would climb down and record the time and angle.
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|Since she was over 60, I thought this was too much, and I taped a string to the switch on the intercom. I told her all she had to do is to pull the string and shout "AYE AYE", so no more need for climbing. Also, that Fran would never find out...|