CDMVTCG

 

Variation EAST ... compass least

Convergence EAST ... true is least

GRIVATION is the sum of VARIATION and CONVERGENCE .... takes you MAG to GRID

Grivation EAST ... magnetic is least

Remember  MAG NORTH is 65 left of TRUE NORTH - now consider the scenario of you flying on a TRACK of 000M .... with a GRIVATION of 4E, (the difference between MAG and GRID),this TRACK must also be 004G (GRIVATION EAST, MAG is LEAST). IF this TRACK is also 004G, GRID NORTH must be 4 LEFT of MAG NORTH.