We are given a "maximum height above ground level" datapoint, where the word "maximum" implies that includes the cable, in the event it crosses a valley. It's that value which we require to be at least 200ft.

+x

 

Tim Dawson - 8/22/2018 10:57:45 AM

It is standard in enroute aeronautical charts to include obstructions whose height is at least 300ft AGL only. In Switzerland we do vary this and include obstructions whose height is at least 200ft AGL. It is therefore probably the case that the "missing" obstructions you alluded to are too small to be selected for inclusion in our charts.

It is standard in enroute aeronautical charts to include obstructions whose height is at least 300ft AGL only. In Switzerland we do vary this and include obstructions whose height is at least 200ft AGL. It is therefore probably the case that the "missing" obstructions you alluded to are too small to be selected for inclusion in our charts.

Could you fix this please? Thank you.