Discussing Measurements types on a Compass bezel ring Degrees, Quadrant, and Mils Dave Canterbury teaches Navigation Best practices to make your Compass use easy
Wow brother David Canterbury you are in a serious role with the series. Absolutely love it. I seriously need an intervention. I’m obsessed with self reliance outfitters products.❤❤❤❤🇺🇸🇺🇸🇺🇸🇺🇸
Converting from a Quadrant to Degrees or visa versa is fairly easy as long as you understand that each quadrant is 90° and all four ad up to 360° and that the bearings were taken in one or the other. Mils on the other hand is a different animal and not as easily converted.
I have 2 USGS maps of the same quadrangle, in north east Georgia. One was printed in 1946 and was all that was available (at the time) The other was printed in 2006, which I got in 2022. The declamation on both are different. Then I checked the declamation on the internet and neither was anywhere near accurate, (2023?) All that said, I have 3 questions. 1. how important is the accuracy of polar north, in the situation you are teaching? 2. Does the declamation change as you move north or south and or east or west? 3. Does these movement changes have any real effect or importance, since the changes will be slight/ Magnetic north's continued movement makes things difficult. Everything you have said so far is great. I've learned more from your series that from anyone else, that's for sure. Thanks Dave. I hope you make a "play list" package from this series. ;-)
Just wanted to say hi from canada eh Thanks for sharing all your knowledge dave amazing lessons very well explained. I might not ever use some of this stuff but it sure is interesting
It seams like it would be a good idea to have a reference picture to all 3 drawn side by side into your note book just incase you had to convert ….. or print one out …… Loving the Nav series by the way …. Absolute amateur here…. But learning soo much….
We are undergoing a geomagnetic excursion: any system dependent upon the poles will continually be off until the poles flip after (during actually) the micronova. Sorry for the news.
Old scientist trick (e.g. should work for the mil scale) to reduce reader error and need accuracy plus have semi-knowledgeable people: each person measures 3 times independently, preferably min 3 people, all pooled and averaged
6400 mils in a NATO compass. Can be different if you use other systems: be careful! 1mil error is 1m error at 1000m, so a 50 mil error is a 50m error at 1000m - can be very useful for measuring distant objects, and will transpose into a reticle on a rifle. 1 degree of error is 1 nautical mile of error at 60 nautical miles of distance travelled. If using metres/km, I would advise using mils and just going full metric. Even if you’re not going accurate, the maths is so simple it becomes second nature.
15 degree azimuth is N 15 degrees E, not N N 15 E 😉. Just a slip of the tongue I am sure. Nono no. Not east southeast, never. Bearings by quadrant start with either N or S. In southeast quadrant it is always S degrees E of S degrees W, the angle being measured from the south. If it is N E or N W, it is always first N them either N E of N W with the degrees being measured from N
