right,as i understand it,
1/transport wander is the amount of change from its initial state caused to a gyro when it is being TRANSPORTED (ie flown,as i an installed gyro in a plane,such as the one on your DI).
2/Apparent wander is the APPARENT amount of change from the initial state,whem a gyro is stationary,ie in a plane with instruments running,but on the ground,not moving.
A gyro aligns itself with a fixed piont in space,and will remain fixed and aligned to that piont unless diosturbed.However,the earth rotates.This rotation means you'll soon find the gyro changing its alignment in relation to the initial point it was set up on.this is compounded by the fact that they actually put them in planes and fly half way round the globe...meaning much more changes.
Hope you're not too confused mate! Good luck.
