Ideal characteristics for a Low Altitude VRP
Need to have features with high vertical extent, unique and big
Doesn’t give accurate position fix but are easy to see
Ideal characteristics for a Higher Alt VRP
Features with great horizontal extent - lakes, motorways, railways
Difficult to spot but gives an accurate position fix
Line feature perpendicular to the track is good for?
Checking time and ETA
2 line features are good for
Checking GS if they are perpendicular
A crossing point of line features are good for
A position fix
Single line feature parallel to the track is good for?
Good for checking drift and tracking