02-03-2021, 02:48 AM
Greetings, gentlemen. I found a couple of interesting old books which, considering lockdowns and general inability to cross a street without damn mask, may help to develop not very useful skills. But a lot of people have used them for sure. One of them Mathematics for navigators by Delwyn Hyatt. Yes, 1944. Of course it is kind of obsolete. But please consider the fact it was taught during WWII to officers who would serve in the real situations, not in a front of a simulator. In many cases its methods are kinda "not straight forward" to say least. But some are really good. For instance, Adding and subtracting figures from left to right, they way we write them. I tried it and after several attempts found out that it is much faster than traditional ones. Also, havesine and other formulas presented in quite different, again, not easy for me to understand, wording and form. Anyway, real navy folks really used it. So, as a due respect tio their work, let's try to understand their daily routines doing it. Not easy, my opinion.
Another one, Navigation and NAutical Astronomy, by Dutton, 1943. Again, thyere are a lot of info, which probably none of us would ever use, but there are also a lot of proves and explanations, which we take for granted without even thinking where did it come from. Moder editions of Dutton don't have some of it. I consider it as of a hystorical value.
I am always fascinated by the old methods of navigation, when Energizer' Bunny wasn't even conceived yet. No batteries, cloudy skies, rolling horizon and wet and misery all around. And they did it. Years ago we were taught to use sliding rules. It gives you anything, up to 3 decimal. Recently saw it in the antique shop for $271. And only then I realized how ancient am I.
Thank you.
Respectfully,
Another one, Navigation and NAutical Astronomy, by Dutton, 1943. Again, thyere are a lot of info, which probably none of us would ever use, but there are also a lot of proves and explanations, which we take for granted without even thinking where did it come from. Moder editions of Dutton don't have some of it. I consider it as of a hystorical value.
I am always fascinated by the old methods of navigation, when Energizer' Bunny wasn't even conceived yet. No batteries, cloudy skies, rolling horizon and wet and misery all around. And they did it. Years ago we were taught to use sliding rules. It gives you anything, up to 3 decimal. Recently saw it in the antique shop for $271. And only then I realized how ancient am I.
Thank you.
Respectfully,