R in a Circle (Airport Surveillance Radar) on VFR charts

In article ,
"Bill Denton" wrote:

My apologies if I unduly credited you. Actually, TRSA's were first mentioned
in the second message on this thread. I simply felt your message was the
first to directly address TRSA's, as opposed to simply referencing them.

In the body of your message, you stated: "TRSAs are a lot rarer than ASRs".
However, as has been noted, The Chicago Sectional shows one ASR and three
TRSA's, which would contradict your observation.

I'm not sure I follow -- there are (probably) ASRs at (or for) all the
Class C and B airports on the Chicago sectional, as for (say) the SF
sectional. In the case I was thinking of, there's exactly one TRSA in
California, but maybe half a dozen ASRs in the combined San Francisco
Bay Area / Sacramento area alone (and, from memory, a similar number in
the LA area). Only a few of these are marked on the sectional
explictly, whereas a TRSA would always be explictly marked.

The fact that the sectional only explicitly notes that an airport has
an associated ASR when that can't be inferred from other information
doesn't mean the ASRs aren't there...

Hamish

"Bill Denton" wrote in message
...

Please review the subject of this thread, which is the use of an "R" in a
circle on Sectional Charts to denote the presence of Airport Surveillance
Radar at specific airports.

It appears Mr. Reid introduced TRSA's into the mix, a point I failed to
note. And it appears that a TRSA is not the same thing as Airport
Surveillance Radar.

So, my statement, in response to the original subject, that the only
Airport
Surveillance Radar on the Chicago Sectional is at Waterloo (ALO) is
correct,
assuming that I found all that were on the chart.

And your statement, in response to the changed subject: "I know of TRSAs
at
Rockford, Illinois, and Muskegon and Kalamazoo, Michigan", is also
correct.


So please pay better attention to the messages you're responding to.

I will give each message as much attention as I can, which is not always
very much. And I am not going to get upset with myself if I miss a situation
where someone changes the subject mid-thread.

And you will notice I had no problem acknowledging my mistake.


"Steven P. McNicoll" wrote in message
ink.net...

"Bill Denton" wrote in message
...

Please review the subject of this thread, which is the use of an "R" in
a
circle on Sectional Charts to denote the presence of Airport
Surveillance
Radar at specific airports.

It appears Mr. Reid introduced TRSA's into the mix, a point I failed to
note. And it appears that a TRSA is not the same thing as Airport
Surveillance Radar.

So, my statement, in response to the original subject, that the only
Airport
Surveillance Radar on the Chicago Sectional is at Waterloo (ALO) is
correct,
assuming that I found all that were on the chart.

And your statement, in response to the changed subject: "I know of TRSAs
at
Rockford, Illinois, and Muskegon and Kalamazoo, Michigan", is also
correct.


So please pay better attention to the messages you're responding to.

In article . net,
"Steven P. McNicoll" wrote:

"Hamish Reid" wrote in message
...

Idle question: how common are TRSAs? I can find only one in all of
California, but that doesn't say much about other parts of the US.

I know of TRSAs at Rockford, Illinois, and Muskegon and Kalamazoo, Michigan.

Thanks. I can find only one on the LA sectional, and none at all on the
SF or Klamath sectionals. But then I may have missed a few while
searching here at work....

Hamish