Class D / Class C precedence

"SR20GOER" wrote

Slightly OT I know but can someone advise me (since we are talking airspace) -
are transponders mandatory to carry and use in Class E airspace in the US?

Transponders are required for all registered aircraft, if they were manufactured
with an electrical system.
--
Jim in NC

"Morgans" wrote in message
...

"SR20GOER" wrote

Slightly OT I know but can someone advise me (since we are talking
airspace) - are transponders mandatory to carry and use in Class E
airspace in the US?

Transponders are required for all registered aircraft, if they were
manufactured with an electrical system.

They are??? Is this a 'new' rule, like aircraft (with electrical)
manufactured after a certain year?

My Ercoupe (now sold) didn't have a transponder. I could, and did, fly it in
any airspace except B (and A :-) ).

-Greg B.

"Morgans" wrote in message
...

"SR20GOER" wrote

Slightly OT I know but can someone advise me (since we are talking
airspace) - are transponders mandatory to carry and use in Class E
airspace in the US?

Transponders are required for all registered aircraft, if they were
manufactured with an electrical system.
--
Jim in NC

Not required in Class E, G, or D or C

BT

"BT" wrote

Not required in Class E, G, or D or C

Hmm. I guess I remembered that incorrectly. I wonder where I got that idea.
--
Jim in NC

"BT" wrote in message
...
"Morgans" wrote in message
...

"SR20GOER" wrote

Slightly OT I know but can someone advise me (since we are talking
airspace) - are transponders mandatory to carry and use in Class E
airspace in the US?

Transponders are required for all registered aircraft, if they were
manufactured with an electrical system.
--
Jim in NC

Not required in Class E, G, or D or C

BT


Unless under the Mode C veil of a Class B airport... i.e. if in Class E, G,
C, or D, but within 30 nm of a Class B Airport such as SEA, a transponder is
required unless you call the controlling authority (usually by phone) ahead
of time to make arrangements.

"Mxsmanic" wrote in message
...
Jarod writes:



Newps wrote:

Mxsmanic wrote:

Newps writes:


You can only be in one airspace at a time. At TTD notice the class D
circle isn't a full cirlce. It gets cut off where the class C goes
to
the ground.


Yeah, but look at the altitudes. The top of the Class D appears to
be
_above_ the floor of the Class C that it overlaps.

The class C does not exist where the class D does.

Are you sure about that? Providence Class C protrudes into Quonset Point
class D airspace and the Quonset Tower is very adamant that the
overlapping
area is Class C and requires communication with Providence.

I'm looking at the inset on the Seattle sectional right now. The
dotted line of the TTD Class D doesn't extend into the central part of
the PDX Class C (where the latter starts at the surface). However, in
the two Class C sectors outside that, you see the dotted line of the
Class D, and 25 in a box, indicating that the Class D extends up to
2500 feet inclusive. But those two Class C sectors start at 1700 and
2000 feet, both below the ceiling of the Class D. So is 2000 feet
Class C, or Class D?

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

Should be just like a Class B that has shelves over a Class D, i.e. SEA
Class B over Boeing Field (BFI), Class D at BFI goes to 2500, but the Class
B starts at 1100, 1800, 2000, and 3000 over various parts of BFI's Class
D... In your example/situation from 2000', or where ever the Class C shelf
starts, should be Class C. Speculating why they don't put the different
Class D ceilings for the different "sectors" might be because then the chart
would be more cluttered and more difficult to read, especially while flying.
Class C is more "restrictive" than Class D, and thus "overrides" the Class
D. You will typically find more IFR traffic and larger planes in Class C
than you will in Class D, and typically just plain more traffic in Class C.

I believe the person that said "Class C does not exist where the class D
does" was only refering to the surface airspaces.

B A R R Y wrote:
On Sat, 25 Nov 2006 23:59:37 -0500, "Morgans"
wrote:

Transponders are required for all registered aircraft, if they were manufactured
with an electrical system.

I respectfully ask for the FAR where that is written.

It doesn't exist. The only place where "manufactured with an
engine-driven electrical system" appears is in the exemption
for the Mode C veil. Transponders are otherwise required
there and for everybody inside class A, B, and C, and above
10,000 feet in other controlled airspace.

There was an exemption to the transponder rule for class B
for certain airplanes without them but it is long expired.
You can get temporary waivers on the class B rules by
contacting ATC.

Greg B wrote:
"Morgans" wrote in message

My Ercoupe (now sold) didn't have a transponder. I could, and did, fly it in
any airspace except B (and A :-) ).


Not legally. You can't fly above 10,000 feet in controlled airspace
(admittedly a stretch in the 'coupe) nor in class C or within 30 miles
of the class B airports.

BT wrote:


Not required in Class E, G, or D or C

Very much required for class C, and D and E when above 10,000'

B A R R Y wrote in
:

On Sat, 25 Nov 2006 23:59:37 -0500, "Morgans"
wrote:


Transponders are required for all registered aircraft, if they were
manufactured with an electrical system.

I respectfully ask for the FAR where that is written.

http://masl.to/?P28B1534E

FAR 91.215 section (b) paragraph (5)

(b) All airspace. Unless otherwise authorized or directed by ATC, no person
may operate an aircraft in the airspace described in paragraphs (b)(1)
through (b)(5) of this section, unless that aircraft is equipped with an
operable coded radar beacon transponder having either Mode 3/A 4096 code
capability, replying to Mode 3/A interrogations with the code specified by
ATC, or a Mode S capability, replying to Mode 3/A interrogations with the
code specified by ATC and intermode and Mode S interrogations in accordance
with the applicable provisions specified in TSO C–112, and that aircraft is
equipped with automatic pressure altitude reporting equipment having a Mode
C capability that automatically replies to Mode C interrogations by
transmitting pressure altitude information in 100-foot increments. This
requirement applies—

....

(5) All aircraft except any aircraft which was not originally certificated
with an engine-driven electrical system or which has not subsequently been
certified with such a system installed, balloon, or glider—