I would be delighted if LORAN became the GPS back up but for cost reasons I can'y see it happening this side of the atlantic.
What I can see is DME out lasting VOR & ADF simply because it backs up the GPS in most flight management systems, INS being the navigation of last resort!.
I have been trying to understand why GA has not got a multi-sensor navigation recever after all it cant be to much of a problem to use the GPS data base to auto tune three DME units to triangulate a fix. the (already fitted) altitude input would take the slant error out of the fix.
Something like that would no doubt meet P-RNAV by using both GPS and DME/DME.
What I fail to understand is why the only mulit-sensor navigation unit offerd on the GA market (Narco ND9000 Starnav) has vanished from the market without a trace? with GPS, VOR/DME used inside the box for area nav and an input for LORAN. The NS900 also had ILS and as far as I can see is still way ahead of the Garmin GNS430 in navigation terms (it has no communications radio) perhaps it was just too far ahead of its time!
Comments from the floor please!
Last edited by A and C; 6th November 2007 at 10:20.
Reason: NS900 data added