Can't get the localizer tracking mode armed or active

[Guest]

What did I miss in the manual.I swich VOR1 to manual and tune into a VOR, In the EHSI (swiched to VOR mode) I can see that the VOR signal is being received. But I can't click the LOC switch on the MCP, nor the BCRS switch. CMD and FD are active.What is wrong?Thanks in advancePeter

[michal 44]

Are you sure you are tuning a true localizer ? If this is just an ordinary VOR signal then it won't work. 767 can't track a VOR radial.Michael J.

[Guest]

Thats it. I was tuning in to an Ordinary VOR.So that means that the only way to track a VOR radial in the 767 is using the FMC, right? Is this also the case in the real plane? It probably is, but why?Thanks Peter

[Guest]

Yes, it is the case in the real plane. As to why, I'm not entirely sure what the design philosophy was, but here's my guess:The mix of IRS and FMC computed position is at least as accurate, if not more accurate, than the position information you would get from tracking a VOR. VORs (and NDBs, particularly) are prone to anamolies due to weather conditions, etc.Additionally, since the functionality to, say, intercept a radial to go direct to a VOR is built in to the FMC, there really doesn't seem to be a need for the autopilot to track a VOR radial separately.Besides...you can always hand fly it! =)Jon (KSEA)

[Guest]

I understand.Well, I'm going back to the FMC manual now.I still have a lot to learn...Thanks for your helpPeter