Questions on VFR sectionals and TACs

Ron Natalie writes:
Symbols are explained more in the Aeronautical Chart User's Guide.
http://www.naco.faa.gov/index.asp?xm...ine/aero_guide

The blue line with the dots indicates a conservation area (wilelife
refuge, national park ,etc.).

Pilots are requested to stay 2000' above these (but it's not
mandatory).

North of Boston you will find a large white-ground circle outlined by
a thick cyan dashed line.

The meaning of white ground or a thick cyan dashed line is not defined
in the chart legend, nor is it defined in the book you point at. Any
guess what this is? (And why the FAA thinks it is worth putting on
the chart, but not worth documenting what it means?)

Chris

In article ,
Christopher Brian Colohan wrote:

North of Boston you will find a large white-ground circle outlined by
a thick cyan dashed line.

Not anymore (look at the 74th edition of the NY sectional)


The meaning of white ground or a thick cyan dashed line is not defined
in the chart legend, nor is it defined in the book you point at. Any
guess what this is? (And why the FAA thinks it is worth putting on
the chart, but not worth documenting what it means?)

On the 73rd edition of the NY sectional there is indeed a note
that P-67 is expanded by special notam.

--
Bob Noel
Looking for a sig the
lawyers will hate

Bob Noel writes:

In article ,
Christopher Brian Colohan wrote:

North of Boston you will find a large white-ground circle outlined by
a thick cyan dashed line.

Not anymore (look at the 74th edition of the NY sectional)

Heh. Don't have that one yet. :-)

The meaning of white ground or a thick cyan dashed line is not defined
in the chart legend, nor is it defined in the book you point at. Any
guess what this is? (And why the FAA thinks it is worth putting on
the chart, but not worth documenting what it means?)

On the 73rd edition of the NY sectional there is indeed a note
that P-67 is expanded by special notam.

I found the note, but only figured out what it was associated with
_after_ someone explained the dashed circle to me. I guess I find it
puzzling that there are symbols used on the map which don't appear in
any legend... (Especially when just adding them to the legend with a
description like "heavy cyan dashed line == TFR outline" would clear
everything up.)

Chris

In article ,
Christopher Brian Colohan wrote:

North of Boston you will find a large white-ground circle outlined by
a thick cyan dashed line.

Not anymore (look at the 74th edition of the NY sectional)

Heh. Don't have that one yet. :-)

I literally got it from the club a few hours earlier as he unpacked
the boxes. :-)

--
Bob Noel
Looking for a sig the
lawyers will hate

Christopher Brian Colohan writes:

North of Boston you will find a large white-ground circle outlined by
a thick cyan dashed line.

Looks like the one around Washington. I think it means that one of
the President's friends lives somewhere near there, so all aircraft
for dozens of miles around are prohibited so as not to disturb the
royals.

--
Transpose mxsmanic and gmail to reach me by e-mail.

Christopher Brian Colohan wrote:


The meaning of white ground or a thick cyan dashed line is not defined
in the chart legend, nor is it defined in the book you point at. Any
guess what this is? (And why the FAA thinks it is worth putting on
the chart, but not worth documenting what it means?)

Correct. NACO finally adopted that to mean special flight restricted
airspace. The other big use fo it is the FRZ in Washington and P-40
(Camp David) in DC.

Are we talking about the one over Bush the First's place in
Kennebunkport?

Ron Natalie writes:

Are we talking about the one over Bush the First's place in
Kennebunkport?

Why does he get a flight restriction? He's not a public official (as
far as I know).

--
Transpose mxsmanic and gmail to reach me by e-mail.

On Sun, 19 Nov 2006 14:00:20 +0100, Mxsmanic
wrote:

Ron Natalie writes:

Are we talking about the one over Bush the First's place in
Kennebunkport?

Why does he get a flight restriction? He's not a public official (as
far as I know).

He doesn't. He gets a 1000'/1NM prohibited area. It's when the other
one comes to visit that the standard TFR appears, which (at least in
the ones I have) is charted by the absence of ground color. I see
someone else mentioned that the new chart which takes effect Thursday
doesn't have this feature any more. Course, the TFR can still appear.

"Ron Natalie" wrote in message
m...

The nominal diameter is 4.3 NM (5 SM). There
may be extensions either as class D or class E surface area that
accomodate the instrumetn approaches. They're centered on the
airport reference point.


There is no nominal diameter for Class D or E surface areas. The standard
is 3.5 NM plus the distance from the Airport Reference Point to the end of
the outermost runway.