There is an entire celestial course on reginasailing.com where you can learn to master it step by step in a completely free 10+ hours course that I have put online! Enjoy! And have fun mastering this really classy way of navigating, completely independent of any superpower's satellite in the sky!
Yes it is very understandable, but if You do it three times a day it becomes routine. The sigth reduction tables HO249 were developed by UK Hydrographic Office in WW2 in order for the navigators on the British RAF planes to quickly calculate the position. These navigators , who would be farmers eg before the war were to learn this skill very fast >(please correct me if I am wrong). When I was radiooperator in Maersk Line 1972-1976 the mates used sekstant navigation only and I morse telegraphy only ofcourse :-)
@@ErlingJensen-g4c I have heard the same, but was under the impression it was the for the US bombers and the long distance flights across the Atlantic they needed a quick way to navigate. But maybe it was developed by the British, so I need to correct my "story" when holding the course in Malta next time in February.... I have heard that the radio operator in the olden days was one of the most respected persons onboard being the only one with any connection with the outside world... And then suddenly, everything changed, especially with GMDSS and they become obsolete overnight!
I can't remember the actual numbers, but the various AP's (assumed positions) for which there is data in the sight reduction table, are all 1° apart (60 minutes). So you need to either choose a position X°Y´or (X+1)°Y´or (X-1)°Y´. In other words, the minutes (Y) are calculated so that the LHA becomes 00´ and then you have to choose your degree being one minute up or down or same as your EP (estimated position). I know this sounds very complicated, but when you have done it a couple of times (e.g. twice per day) it becomes second nature. After all, excactly as you say, they were all farming boys or even cadets with no further education who could do it in the olden days. They had to, and didn't think so much, and just did it! And then it became second nature, even if they possibly didn't understand exactly what they were doing. But I enjoy understanding it, hence my lengthy explanations.
3.55 am my head is fried trying to follow this, but interested 😊
There is an entire celestial course on reginasailing.com where you can learn to master it step by step in a completely free 10+ hours course that I have put online! Enjoy! And have fun mastering this really classy way of navigating, completely independent of any superpower's satellite in the sky!
Yes it is very understandable, but if You do it three times a day it becomes routine.
The sigth reduction tables HO249 were developed by UK Hydrographic Office in WW2 in order for the navigators on the British RAF planes to quickly calculate the position. These navigators , who would be farmers eg before the war were to learn this skill very fast >(please correct me if I am wrong). When I was radiooperator in Maersk Line 1972-1976 the mates used sekstant navigation only and I morse telegraphy only ofcourse :-)
@@ErlingJensen-g4c I have heard the same, but was under the impression it was the for the US bombers and the long distance flights across the Atlantic they needed a quick way to navigate. But maybe it was developed by the British, so I need to correct my "story" when holding the course in Malta next time in February.... I have heard that the radio operator in the olden days was one of the most respected persons onboard being the only one with any connection with the outside world... And then suddenly, everything changed, especially with GMDSS and they become obsolete overnight!
Thank You for the video. In the Long(AP) calculation I would have chosen 16deg5.4min which is nearer the est. 16deg 15min
Sorry nearer the 16deg25min ofcourse
I can't remember the actual numbers, but the various AP's (assumed positions) for which there is data in the sight reduction table, are all 1° apart (60 minutes). So you need to either choose a position X°Y´or (X+1)°Y´or (X-1)°Y´. In other words, the minutes (Y) are calculated so that the LHA becomes 00´ and then you have to choose your degree being one minute up or down or same as your EP (estimated position). I know this sounds very complicated, but when you have done it a couple of times (e.g. twice per day) it becomes second nature. After all, excactly as you say, they were all farming boys or even cadets with no further education who could do it in the olden days. They had to, and didn't think so much, and just did it! And then it became second nature, even if they possibly didn't understand exactly what they were doing. But I enjoy understanding it, hence my lengthy explanations.