G’day TehHoggs, there is also a note on the Y charts to state “GE special design criteria, GE Aviation approval required” This suggests a proprietary procedure for General Electric and hence Jepppesen may not own rights to the chart.
Yes the chart is in the public domain, hence the procedures have been manually written for our simulator use. It’s just the fact that the charts are owned by someone other than the Jeppesen data provider so they are not in the offer from Navigraph.
My two cents worth of opinion…Martin YBLT