VOR indicator in vc 10

domvc10 · Post by **domvc10** » 08 May 2007, 23:06

Hello!

Just did a flight from egdg (st mawgan) to EGVN (Brize Norton) when tuning into the BDN108.2 vor ,the vor indicator on my vc-10 did not point to it but the distance in the DME indicator did show. I am a little confused as to why this happened can anyone enlighten me on this the radio must have been tuned to the VOR or else it would not be showing the distance from it but it should make the needle point in its direction right?
It doesn't seem to work at BZN either although when tuned its all fine in the HSI.
Any help much appreciated....

Dom

Keith Jones · Post by **Keith Jones** » 08 May 2007, 23:32

You'll find that both the BDN and BZN VORs are just DME beacons. I'm not sure, but I think they're supposed to simulate TACANs.

On the same subject, can anyone point me in the right direction to find out how to navigate using DMEs - if indeed one can navigate using them!

domvc10 · Post by **domvc10** » 08 May 2007, 23:56

i see that would make sense i hate the map in msfs it told me they were VORs! As with navigation with just DME no idea i thought that was just an aid

viking3 · Post by **viking3** » 09 May 2007, 04:28

The DMEs at St Mawgans and Brize are TACANs of which DME is one component. The TACAN is not simulated in FS, but the DME portion is. Note that DMEs are and can be associated with VORs and ILSs but they originated as a component of TACAN(Tactical Air Navigation).
As for navigating by DME you take 3 readings from 3 different DMEs to triangulate a precise point, if you only have 2 stations you narrow it down to 2 possible points.
Regards,Rob

Keith Jones · Post by **Keith Jones** » 09 May 2007, 09:27

Thanks, Rob. That seems to be more trouble than it's worth for a one-person-crew. I suppose one could always delve into the scenery files to change them to VOR/DMEs.

Post by **DaveB** » 09 May 2007, 11:16

Keith..

You have hit the proverbial nail on the head mate. When the original VC10 panel was being stitched together, we had 2 ex VC10 Captains to bounce it off who checked the operation and accuracy of it's systems. One of them emailed me at the time and said.. 'What you have to remember is that these aircraft operated with a crew of 4'!!

I think that Civvie 10's may have reduced to 3 FD crew as onboard nav equipiment improved but the RAF still operate with 4

ATB

DaveB :tab:

Post by **MALTBY D** » 09 May 2007, 11:36

Hi Dom
The FS map has the standard symbols to show the functions of the beacon. A Square means DME, a Hexagon means VOR.
You also get different DME types though and for some reason in FS the default BZN is high altitude only and doesn't work on approach. :k:

Another thing to remember with the VOR indicator, it will not point at an ILS (correct behaviour).
To get a direction indication you can use the ADF radios & indicators (NDB beacons). NDB at Brize is 386.0 (BZ)

DM

cstorey · Post by **cstorey** » 09 May 2007, 12:12

Did you make sure that your nav instruments were set to Nav rather than GPS? If you have it set to GPS, the VOR will not show even though you have tuned to it

domvc10 · Post by **domvc10** » 09 May 2007, 21:37

hi guys thanks for the help i was fine with finding brize always use the adf fro that the vor or dme marker in question was the BDN but i guess i should look at the map more closely now (thankd david) didn't realise it does actually distinguish between the types. It was a quick glance at the map which led me to plan the route i took. I will have a more detailed look next time hopefully get the chance later tonight or tommorow to give it a bash.

Thanks guys!

snave · Post by **snave** » 10 May 2007, 14:24

Even though a DME is not as practical as VOR unless you have a chap with a map out the back, you can still use it alongside a VOR to fly a DME Arc. You can preset the angle of interception of a known VOR, fly the DME arc maintaining the required distance from the station, and when the needle moves to centralise the VOR, you have reached your reporting point, turning point, top of descent etc, etc.

It is still used in day-to-day flying by clever pilots who want to ensure they don't infringe ATZ, because GPS always prefers to fly you in a straight line between waypoints, and that can be a recipe for trouble where NOTAMS are concerned - there have been a large number of airspace infringements attributed to `cutting the corner` using GPS, when placing a DME arc on the map (that'd be the real one, not the computer-generated one) would have acted as an aide-memoire not to be further than say 20 miles from the DME, or else at 21 you impinge on the edge of the ATZ or NOTAM'd zone.

Although DME doesn't seem to be useful by itself, as it can't guide you to a location, it's still a useful tool for flying around things! :think:

Classic British Flight Sim

VOR indicator in vc 10

VOR indicator in vc 10

Tacan