COMPASS CORRECTION CARD PDF DOWNLOAD
Pages: 254 File size: 4.36MB License: Free PDF Added: Meziramar Downloads: 51.666 These were already in common use by the early 18th century and are described in the Cyclopaedia. These numbers allow the compass to show azimuths or bearingswhich are commonly stated in this notation. This magnetised rod or magnetic needle is then placed on […]