A intresting subject concers te BACK UP for GNSS failure
The present ATSP and CAA are trying to decrease the presence of NDB and VOR for RADIONAVIGATION in vieuw of the present avaiblity of GPS( a GNSS)
Also in the future the avaiblity of GPS, GLONAS, GALILEO and other SATELITE NAVIGATION.
BUT ....... there is a need for a BACK UP incase of the failure of the GNSS because al this systems are subject to failure by SUN SPOTS or by TERORISME.
The CAT is for this proposing the DME/DME
but this is not avaible for lichter AIRCRAFT operating in IFR.
for this whe have evazluated in a certain group of IAOPA thad the best solution is the already esisting LORAN "C" used by the US-NAVY and also the FRENCH MILITARY.
Whe have made this proposal already in 1990 toward the FAA and EUROCO0NTROL without succes
But there is again a danger toward the US-NAVY LORZN "C" via a footnote to the USA BUDGET to abolisch the LORAN "C" in vieuw to reduce the budget with 190 milion $ over five years.
From inside USA information this proposal will be again rejected
At EUROCONTROL there is a team of experts pro LORAN C as back-up for GALILEO, andalso in the SESII and SESAR this is mentiones as a solution
On behave of GA & AW operating IFR do whe need strongly support the LORAN "C" to be maintained and developed as back up for GNSS, acording us there is no other solutions the DME/DME is to HEAVY in WEIGHT and to COSTLY.
Presently dit I obtain a verbal story about the present SECURITY ??
A AIRPLANE flying from A to B on a VFR training flight on radionavigation outside controlled airspace is in R/T contacy withe the FIC.
On a certain moment the FI with a student relakise thad he has a radiofailure and return to his airport of departure he changes the transponder from 7700 ( VFR) to 7600( RADIOFAILURE) .
On arrival on the aerodrome of departure he is imediatly surrounded by the POLICE SERVICEs and the aircraft is chearched for drugs, or explosifs, apaerently has the military RADARSERVICE noticed the 7600 SSR code and confused withe the 7500 SSR code .
The local police has made a very in depth control of the AIRPLANE and the documents from the airplane and the crew and apaerently was looking for a possible TERORIST ACTIVITY
DONT BE SUPRISED by SUCH a RECEPTION ????
I ame intrested to see the administratif follow up of this incident ??