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Forum: Tech Log

6th Mar 2014, 23:37

Replies: 47

DME Height Check

Views: 17,150

Posted By reynoldsno1

Understood - but I certainly wouldn't refer to it...

Understood - but I certainly wouldn't refer to it as "tapering", as the primary surfaces involved do not slope...
Also, beware of comparing ILS check heights with non-precison heights. ILS heights...

Forum: Tech Log

5th Mar 2014, 21:23

Replies: 47

DME Height Check

Views: 17,150

Posted By reynoldsno1

For a non-precision approach, using ICAO...

For a non-precision approach, using ICAO criteria, the final approach segment MOC (minimum obstacle clearance) is 75m, or about 250ft. The minimum obstacle clearance height is also 75m. The...

Forum: Tech Log

5th Mar 2014, 20:31

Replies: 47

DME Height Check

Views: 17,150

Posted By reynoldsno1

The obstacle clearance calculations are separate...

The obstacle clearance calculations are separate to the DME/altitude calculations. The advisory altitudes will always remain above the required OCA for any particular approach segment down to the...

Forum: Tech Log

4th Mar 2014, 20:26

Replies: 47

DME Height Check

Views: 17,150

Posted By reynoldsno1

Yes it is. Jeppesen don't normally derive...

Yes it is.

Jeppesen don't normally derive anything - they use the data supplied by the State authority. Different States use different methodologies.

The advisory altitudes are calculated from...

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