Post by LOU on Mar 11th, 2010 at 9:19pm
Sorry to butt in on this conversation, but I was reading what you were saying about navigation and would like to ask a couple of questions. You say nav was done VOR-VOR - do you mean like if you select VOR to VOR in the FSX Flight Planner? If so, this is where I'm a little confused, because I always thought airways were followed by airliners, but if you select to navigate by airways, the waypoints aren't always VOR's, so this is quite difficult. As I like to fly FSX as realistically as possible, how can I navigate by airways (as you did in the real world I guess) using the radio nav equipment, and how do I plan these flights?
Thanks,
Tom
OK Tom, I'll try to do a thumb nail of Airways and VOR's
This is a bit of an enroute chart. It is hard to read even in real life since there is a lot of information on the chart.
I have drawn a VERY simple map to explain how in the old days - and still today - how airways are flown.
I show a few VOR's named A, B, C & D and intersections E & F.
You could fly airway J-300 from VOR A to C via VOR B.
You could also fly J-300 to B then J-250 to E intersection and then J-150 to C.
In the high altitude structure (above 18,000 feet) airways are called Jet Routes or just J.
Since you are above 18,000 feet the line of sight distance - VHF Nav is line of sight - can be fairly far.
Line of sight at 35,000 feet is around 300 miles so you could fly out from one VOR on a radial to intercept
a radial from a distant VOR that you cannot receive until you get in range.
You can also fly to intersections made up by two VOR radials using radial to radial and or DME.
You could in the above picture fly from C VOR on J-150 Via the 230 degree radial
to intercept the 360 degree radial of D VOR at intersection F.
This is a VERY simple example, but thats how it's done.
With GPS or LNAV direct routes can be flown, but in the Jurassic Jet
we had no such fancy instruments or radios. ;D
Hope that helps....if not ask!
Lou
Thanks,
Tom
OK Tom, I'll try to do a thumb nail of Airways and VOR's
This is a bit of an enroute chart. It is hard to read even in real life since there is a lot of information on the chart.
I have drawn a VERY simple map to explain how in the old days - and still today - how airways are flown.
I show a few VOR's named A, B, C & D and intersections E & F.
You could fly airway J-300 from VOR A to C via VOR B.
You could also fly J-300 to B then J-250 to E intersection and then J-150 to C.
In the high altitude structure (above 18,000 feet) airways are called Jet Routes or just J.
Since you are above 18,000 feet the line of sight distance - VHF Nav is line of sight - can be fairly far.
Line of sight at 35,000 feet is around 300 miles so you could fly out from one VOR on a radial to intercept
a radial from a distant VOR that you cannot receive until you get in range.
You can also fly to intersections made up by two VOR radials using radial to radial and or DME.
You could in the above picture fly from C VOR on J-150 Via the 230 degree radial
to intercept the 360 degree radial of D VOR at intersection F.
This is a VERY simple example, but thats how it's done.
With GPS or LNAV direct routes can be flown, but in the Jurassic Jet
we had no such fancy instruments or radios. ;D
Hope that helps....if not ask!
Lou