3 ms·
FYI: Canadian runways use true north, not magnetic.
by imoverclocked 2y ago
FYI: Canadian runways use true north, not magnetic.
- yello_downunder 2y agoI had to look this up, and I found the answer interesting because I used to develop software to accurately report magnetic declination at any point in time, for directional drilling oil wells in Canada. https://www.geomag.nrcan.gc.ca/mag_fld/magdec-en.php https://www.geomag.nrcan.gc.ca/mag_fld/magdec-en.php has some great information on why. For example, Yellowknife can experience declination changes over one degree every three years. I haven't used a compass since I was a kid and at that time declination where I live was 21 degrees. Now it's down to 13 degrees. I had no idea it changed that much.
- tjohns 2y agoDepends if you're in Canada's "northern domestic airspace" or "southern domestic airspace": https://www.canada.ca/content/dam/dnd-mdn/images/technical-airworthiness/english/taa-2017-02-figure-1.jpg https://www.canada.ca/content/dam/dnd-mdn/images/technical-a... Airports in the southern half of Canada still use magnetic for runways.
- imoverclocked 2y agoTIL!
- capitainenemo 2y ago... for now. Goal is to get everything on True within the next 5 years. https://www.navcanada.ca/en/magnetic%20north%20vs%20true%20north.pdf https://www.navcanada.ca/en/magnetic%20north%20vs%20true%20n... The global effort. https://www.icao.int/safety/OPS/OPS-Section/Pages/Truenorth.aspx https://www.icao.int/safety/OPS/OPS-Section/Pages/Truenorth....