12-22-2020, 01:45 PM
Hello fellow CN freaks,
Its been 2 years since I logged in last. I hope some of the old shipmates are still breathing.
I was wondering if any of you guys have become more active in celestial navigation since the covid hoax began.
I started taking more shots with an artificial horizon and with no little difficulty. For some reason my lops are always 4 or 5 nautical miles short of my gps fix.
I've gone over the math a hundred times, checked my time, checked the sextant, checked everything.
Recently I began to wonder if my sun shots are wrong. My habit is to bring the sun down to the AH then touch the two suns with the AH sun on the bottom. Do I have this backwards?
I add index error, divide by 2, then add altitude correction. Am I missing something? should I be using SD, semi diameter, instead of altc, or is there a step of which I'm unaware? I dont add dip to AH shots.
Anyway, I hope to hear from some of the old gang; including admin.
Merry Christmas
Its been 2 years since I logged in last. I hope some of the old shipmates are still breathing.
I was wondering if any of you guys have become more active in celestial navigation since the covid hoax began.
I started taking more shots with an artificial horizon and with no little difficulty. For some reason my lops are always 4 or 5 nautical miles short of my gps fix.
I've gone over the math a hundred times, checked my time, checked the sextant, checked everything.
Recently I began to wonder if my sun shots are wrong. My habit is to bring the sun down to the AH then touch the two suns with the AH sun on the bottom. Do I have this backwards?
I add index error, divide by 2, then add altitude correction. Am I missing something? should I be using SD, semi diameter, instead of altc, or is there a step of which I'm unaware? I dont add dip to AH shots.
Anyway, I hope to hear from some of the old gang; including admin.
Merry Christmas