Snoopy wrote:
01
Anyone following this? Interesting proposed amendment here
https://hub.easa.europa.eu/crt/docs/viewnpa/id_441
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The UK CAA has just published ORS4 1362 which allows a GPS to substitute for an ADF, subject to meeting various requirements.
I am not sure whether it is related to this EASA NPA, or is just a UK-only move.
Peter wrote:
The UK CAA has just published ORS4 1362 which allows a GPS to substitute for an ADF, subject to meeting various requirements.
It seems to apply to non-EASA aircraft only as per reference to schedule 6?
Hmmm… the number of non EASA aircraft which are approved for IFR can be counted on one’s fingers (maybe toes also).
wbardorf wrote:
t seems to apply to non-EASA aircraft only as per reference to schedule 6?
Yes, because for the time being they can only regulate it for such aircraft – but one could see this regulation as move towards leaving EASA
In the US it’s valid to use GPS if it says so, i.e. “NDB or GPS” in the title. I’d imagine the few remaining NDB approaches all do by now. The nearest one to me is Siskiyu County, 200 miles away:
https://aeronav.faa.gov/d-tpp/2004/00882NGA.PDF
As far as pre-ILS ILS-like approaches go, the town of Dovercourt, Essex, where I spent my childhood summer holidays, had two lighthouses which functioned as a kind of ILS for the harbour approach from 1863 to 1917 – amazingly, the lighthouses are still there and preserved. You had to keep them lined up, and there was a way to know which way you were off course if not (one was higher than the other).