TRSA and /X

Yea.. but the simplified explanation is:

A TRSA is an approach control type radar service into an area that is
not serving a Class C or Class B field. As others have said, it is
non-regulatory. The airspace within a TRSA is either Class D or Class E.
I have yet to see a TRSA encompass class G airspace (other than the
presumption that ground to 700 feet is included) but from a logical
standpoint it seems counterintuitive to provide "control" to traffic in
"uncontrolled" airspace.

The difference between center and approach class radars is significant:
closer in vectors to final, faster update rates, etc.

While participation by VFR's within TRSA's are voluntary, my "local"
TRSA at Beaumont, TX (KBPT) advises aircraft inbound to KBPT to contact
approach first, who will then hand you off to the tower... so by
practice, going into the primary airport at THAT TRSA is defacto a
mandatory participation

Dave Staten

Bob Gardner wrote:
The explanation is in the AIM reference.

Bob

"Guy Elden Jr" wrote in message
oups.com...

Something I've always wondered... why do TRSAs even exist? Seems like a
dangerous proposition to choose some airports as having the concept of
a voluntary controlled airspace? Why not a Class C (their closest
cousin as far as I can tell)?

--
Guy Elden Jr.

Bob Gardner wrote:

AIM 3-5-6 says that participation by VFR pilots is voluntary...and for
IFR
pilots, TRSA's don't even exist in Part 71.

Bob Gardner

wrote in message
...

Is VFR participation by a non transponder equipped aircraft
encouraged/permitted in a TRSA?

Thanks.

"Dave S" wrote in message
nk.net...

I have yet to see a TRSA encompass class G airspace (other than the
presumption that ground to 700 feet is included) but from a logical
standpoint it seems counterintuitive to provide "control" to traffic in
"uncontrolled" airspace.


The only place TRSAs reach the surface is within the core Class D surface
area. The outer boundary of a TRSA does not extend below the base altitude
of Class E airspace.

http://makeashorterlink.com/?M2B843C3B

"Guy Elden Jr" wrote in message
oups.com...

Something I've always wondered... why do TRSAs even exist?


Good question. Nobody seems to know the answer.



Seems like a dangerous proposition to choose some airports as having the
concept of a voluntary controlled airspace?


What seems dangerous about it? TRSAs exist in Class D and Class E airspace
but are not in themselves controlled airspace.



Why not a Class C (their closest
cousin as far as I can tell)?


Part of the Airport Radar Service Area (ARSA) plan was to eventually replace
all TRSAs with ARSAs, which are nor Class C airspace. But not all TRSAs met
ARSA requirements.

Seems like a dangerous proposition to choose some airports as having the
concept of a voluntary controlled airspace?


What seems dangerous about it? TRSAs exist in Class D and Class E airspace
but are not in themselves controlled airspace.

Ah, that's where I made my mistake - thinking that it's controlled
airspace (as in Class B). I just remember my instructor telling me to
always participate when flying into a TRSA, but never really
understanding why it was voluntary in the first place. Thanks for all
the replies everyone!

--
Guy

"Guy Elden Jr" wrote in message
oups.com...

Ah, that's where I made my mistake - thinking that it's controlled
airspace (as in Class B). I just remember my instructor telling me to
always participate when flying into a TRSA, but never really
understanding why it was voluntary in the first place.


If it was not voluntary it would have the properties of Class B airspace.

Guy Elden Jr wrote:

Ah, that's where I made my mistake - thinking that it's controlled
airspace (as in Class B).

So here's a followup question: We know the TRSA space coexists with the
class E airspace. Does it also coexist with the class D airspace "in" the
TRSA airspace? Or are TRSA and class D mutually exclusive?

Does the answer to this question make any practical difference?

- Andrew

Steven P. McNicoll wrote:
"Guy Elden Jr" wrote in message
oups.com...

Something I've always wondered... why do TRSAs even exist?



Good question. Nobody seems to know the answer.

Plain language: Because they do not have the trafic load required to be
Class C but much more traffic than what is being loaded into the class D
airports. AIM language: TRSA do not meet the ARSA criteria for
conversion to a Part-71 defined airspace. These criteria are relatively
stingent.




Seems like a dangerous proposition to choose some airports as having the
concept of a voluntary controlled airspace?



What seems dangerous about it? TRSAs exist in Class D and Class E airspace
but are not in themselves controlled airspace.
It is a place to get flight following and approach control



Why not a Class C (their closest
cousin as far as I can tell)?

See above



Part of the Airport Radar Service Area (ARSA) plan was to eventually replace
all TRSAs with ARSAs, which are nor Class C airspace. But not all TRSAs met
ARSA requirements.

True




--
--------------------
Scott F. Migaldi
CP-ASEL-IA
MI-150972

Join the PADI Instructor Yahoo Group
http://groups.yahoo.com/group/PADI-Instructors/

--------------------

"Scott Migaldi" wrote in message
...

Plain language: Because they do not have the trafic load required to be
Class C but much more traffic than what is being loaded into the class D
airports.


Do they? How does the traffic count at airports with Class D airspace and
TRSAs compare with the traffic count at Class D airports with TRACONs that
do not have TRSAs?

Why do TRSA's exist?

FAA funding and staffing requirements.

"Doug" wrote in message
oups.com...

Why do TRSA's exist?

FAA funding and staffing requirements.


How do TRSAs affect those?