colored airways?

From what I've been able to find, I gather that these aren't in use in the
US anymore, and haven't been for some time. Seems they're still used in
Canada though, and are still mentioned in the FAR's. Something to do with
L/MF navigation, but I don't know what that is.

Heck, I can't even find mention of them on Gene's site, so they MUST be long
forgotten.

Someone please give me a history lesson here. Thanks.

"Chris Hoffmann" wrote in message
...
From what I've been able to find, I gather that these aren't in use in the
US anymore, and haven't been for some time. Seems they're still used in
Canada though, and are still mentioned in the FAR's. Something to do with
L/MF navigation, but I don't know what that is.

Heck, I can't even find mention of them on Gene's site, so they MUST be
long
forgotten.

Someone please give me a history lesson here. Thanks.

ICAO standard airway nomenclature used to be Red, Green, Blue and
subsequently (I think) and White and Amber. These were abbreviated to their
first letters hence, e.g. G1, Green 1, ran from Shannon across the UK east
across Europe and beyond.

In the late 1980s (IIRC) the nomenclature was changed to the phonetic
alphabet corresponding to the identifier, so G1 became Golf 1. More
recently, as RNAV became widespread and now effectively mandatory in Europe,
waypoints have multiplied like rabbits as have the routes linking them. A
different schema of L, M etc. airways was introduced for RNAV routes, which
means that now the good old airways like G1 only remain in part.

I don't know if the US ever used color airways or when V and J airways were
introduced. I'd be surprised if Canada still calls airways by their colors,
but I'd guess they follow the ICAO conventions.

Julian Scarfe

Canada still uses colored airways, as does Alaska.
Look at an Alaska/Canada enroute chart and you will see plenty of
examples. They're typically based off of NDB equipment.

Lynne

"Julian Scarfe" wrote in message ...

ICAO standard airway nomenclature used to be Red, Green, Blue and
subsequently (I think) and White and Amber. These were abbreviated to their
first letters hence, e.g. G1, Green 1, ran from Shannon across the UK east
across Europe and beyond.

In the late 1980s (IIRC) the nomenclature was changed to the phonetic
alphabet corresponding to the identifier, so G1 became Golf 1. More
recently, as RNAV became widespread and now effectively mandatory in Europe,
waypoints have multiplied like rabbits as have the routes linking them. A
different schema of L, M etc. airways was introduced for RNAV routes, which
means that now the good old airways like G1 only remain in part.

I don't know if the US ever used color airways or when V and J airways were
introduced. I'd be surprised if Canada still calls airways by their colors,
but I'd guess they follow the ICAO conventions.

Julian Scarfe

"Lynne Miller" wrote in message
om...
Canada still uses colored airways, as does Alaska.
Look at an Alaska/Canada enroute chart and you will see plenty of
examples. They're typically based off of NDB equipment.

Looking at some navdata I have, it looks like there are plenty,

A, B, G, N, Q, R, T are all used as prefixes, as well as V and J of course.
As you suggest, they seem to be mostly NDB-based.

You're gonna have trouble pronouncing Q as a color though... ;-)

Julian Scarfe

Canada still uses colored airways, as does Alaska.
Look at an Alaska/Canada enroute chart and you will see plenty of
examples. They're typically based off of NDB equipment.

Before the advent of VARs and VORs, all airways in the Lower 48 were
Red, Green, Blue or Amber, followed by a number. IIRC, Green and
Amber were north-south, Red and Blue were east-west.

In those days, the airways were defined by Adcock A-N ranges.

vince norris

In article ,
"Chris Hoffmann" wrote:

From what I've been able to find, I gather that these aren't in use in the
US anymore, and haven't been for some time. Seems they're still used in
Canada though, and are still mentioned in the FAR's. Something to do with
L/MF navigation, but I don't know what that is.

Heck, I can't even find mention of them on Gene's site, so they MUST be long
forgotten.

Someone please give me a history lesson here. Thanks.



The last ones I was aware of were in the outer banks of North Carolina.
Not sure if they still exist.

"Roy Smith" wrote in message
...
In article ,
"Chris Hoffmann" wrote:

From what I've been able to find, I gather that these aren't in use in
the
US anymore, and haven't been for some time. Seems they're still used in
Canada though, and are still mentioned in the FAR's. Something to do
with
L/MF navigation, but I don't know what that is.

Heck, I can't even find mention of them on Gene's site, so they MUST be
long
forgotten.

Someone please give me a history lesson here. Thanks.



The last ones I was aware of were in the outer banks of North Carolina.
Not sure if they still exist.

I belive that NDB is OTS indefinitely. I had intended to go fly that
airway,
just so I could log that I'd done it.

Henry Bibb wrote:

The last ones I was aware of were in the outer banks of North Carolina.
Not sure if they still exist.


I belive that NDB is OTS indefinitely. I had intended to go fly that
airway,
just so I could log that I'd done it.

Yep. The Pamlico NDB at Ocracoke Island. The building was installed and
maintained jointly by NC DOT and NWS, but when the steel building that housed
the NDB and weather reporting station corroded away, they decided not to replace
it. Consequently the only instrument approach to Ocracoke Island is now a GPS
approach. Even that is unusable when the military SUA nearby is active, since
part of the approach extends into the SUA.

I think there was another NDB-based airway that went to the NDB at Hatteras, but
that one's gone, too. At least they still maintain the weather reporting at
Hatteras.

For a long time after the NDBs were gone, the airways were still shown on
charts, but marked out of service. Not sure whether they are still charted or not.

Remove SHIRT to reply directly.
Dave

there is a colored airway into marathon fl. MTH
"Dave Butler" wrote in message
...


Henry Bibb wrote:

The last ones I was aware of were in the outer banks of North Carolina.
Not sure if they still exist.


I belive that NDB is OTS indefinitely. I had intended to go fly that
airway,
just so I could log that I'd done it.

Yep. The Pamlico NDB at Ocracoke Island. The building was installed and
maintained jointly by NC DOT and NWS, but when the steel building that
housed
the NDB and weather reporting station corroded away, they decided not to
replace
it. Consequently the only instrument approach to Ocracoke Island is now a
GPS
approach. Even that is unusable when the military SUA nearby is active,
since
part of the approach extends into the SUA.

I think there was another NDB-based airway that went to the NDB at
Hatteras, but
that one's gone, too. At least they still maintain the weather reporting
at
Hatteras.

For a long time after the NDBs were gone, the airways were still shown on
charts, but marked out of service. Not sure whether they are still charted
or not.

Remove SHIRT to reply directly.
Dave

When I was in Alaska summer before last there were still some airways
defined by NDB's, so called "Brown" airways (the airway is a brown
line). Interestingly, they have lower MEA's than the adjacent VOR
airway, presumably because of the service volume of the NDB's vs the
VOR's. Of course most pilots use the GPS to go NDB to NDB, but because
the MEA's are lower, I doubt there is a movement to get rid of the
airways. But things are always changing, so who knows?

"Chris Hoffmann" wrote in message ...
From what I've been able to find, I gather that these aren't in use in the
US anymore, and haven't been for some time. Seems they're still used in
Canada though, and are still mentioned in the FAR's. Something to do with
L/MF navigation, but I don't know what that is.

Heck, I can't even find mention of them on Gene's site, so they MUST be long
forgotten.

Someone please give me a history lesson here. Thanks.