To view this page ensure that Adobe Flash Player version 9.0.124 or greater is installed. -Directions - terrestrial magnetism: declination, deviation and compass variations - magnetic poles, isogonals, relationship between true and magnetic - gridlines, isogrives -Distance - units of distance and height used in navigation: nautical miles, statute miles, kilometers, metres, yards and feet - conversion from one unit to another - relationship between nautical miles and minutes of latitude b) Magnetism and Compasses -General principles -terrestrial magnetism - resolution of the earth’s total magnetic force into vertical and horizontal components - the effects of change of latitude on these components - directive force - magnetic dip - variation -Aircraft magnetism -hard iron and vertical soft iron - the resulting magnetic fields -
- The representation of meridians, parallels, great circles and rhumb lines |