O.M.I. Markers... where?

[tmmorris]

It is a uniquely satisfying experience if you can do it. Sadly I suspect it’s a dying art - even the lowly GTN650 gives you a lovely magenta racetrack to fly round.

[TelsBoy]

Referring to earlier comments - as RNAV approaches (finally - Britain 20 years behind everybody else as usual ) get approval everywhere, with the withdrawal of many VORs ye olde NDBs are increasingly becoming the "fallback" option at many airfields. So NDBs will be staying around for quite a while yet (and may even increase in number).


Not bad for something that started use 80-90 years ago...

[scifi]

Hi A+C... I got out my copy of the Australian air pilot to discover the output of this NDB was 2000W !!
At the sort of efficiencies of LW transmitters, I suppose they keep it running to keep the radio room warm.. Our modest 10W NDB was switched off ten years ago, on cost grounds..
.

[TelsBoy]

There are still a lot of NDBs in Russia that kick out several kW. They can be picked up hundreds of miles away. Ideal for them as there's no other navaids for hundreds of miles around (I'd assume also the case in the Oz example).

Most locators in the U.K. are set to in the region of 50W.

[condor17]

PBB , to answer your ques. Link below hopefully leads to ILS RWY 26 at Exeter and as you can see it still has an Outer marker and a Middle Marker .

http://www.ead.eurocontrol.int/eadba...2017-10-12.pdf

Probably kept in service for training purposes as most operational ILSs are associated with DME as a Glideslope check
or LOC/D is much better than a LOC with Mkr support .

rgds condor .

[scifi]

Condor, your link resulted in a log-in page.
I tried to cut and paste the Exeter approach plate (from the AIP.) but could not...
.

[condor17]

scifi ,
Try this . No login required for a/d plates , only Notams .

NATS | AIS - Home

Then Aerodrome Infomation-Specific from left hand side . Then Exeter . Then approach plate required . ie. ILS/DME/NDB[L]RWY26
Straight print , if rquired .

Hope that helps ,

condor .