When to acknowledge ATC

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Ron Natalie wrote:
A Guy Called Tyketto wrote:

If you're working in any sort of Class C or D airspace, his
response to you is in fact clearance into that airspace.

No clearance is required.

For Class C airspace, 2-way communication is the clearance into
that airspace. No, ATC doesn't ahve to 'clear' you into it, but the
communication is the clearance as is.

So if he
responds, you can fly through unless ATC tells you 'remain outside
Class x Airspace'. Then you must read back something.

The last sentence makes no sense whatsoever. If I call and he answers,
that's two-way communciation and that's all that's required.

If ATC tells you to remain outside a certain class airspace,
you must read that back and remain outside that airspace until he
clears you into it. Yes, it establishes communication, and normally
that is all that's needed. but ATC's actual notification of 'remain
outside Class x airspace' (where x is B, or C) overrides your clearance
into that airspace. You will need to remain outside that airspace until
told otherwise.

Class B airspace
requires ATC to tell you that you are cleared into it. So if ATC tells
you 'radar contact location, altimeter xx.xx', you're cleared through
that space where he's controlling, establishes 2-way comms, in which
you need to acknowledge that he hears you whether it's a vector he's
given you, or just replying with your callsign, that is all that's
needed. You can reply back with the alt. setting, but it isn't really
necessary.

RADAR CONTACT is not required. Altimeter setting is not required.
Readback is not required. You know he hears you because he responded
to your radio call with your call sign. I'm having a hard time
following your argument.

Actually, for Class B, it does. AIM 3-2-3.d.2 and 3-2-3.e back that:

3-2-3.e: ATC Clearances and Separation. An ATC clearance is
required to enter and operate within Class B airspace. VFR
pilots are provided sequencing and separation from other
aircraft while operating within Class B airspace.

For Class C, AIM 3-2-4.3 states that 2-way comms must be
established, and that is the clearance into/through Class C. But, if
ATC tells you to remain outside of it, you *MUST* remain outside of it
until told otherwise. Plus, a readback of that would be required.

BL.
- --
Brad Littlejohn | Email:
Unix Systems Administrator, |
Web + NewsMaster, BOFH.. Smeghead! | http://www.sbcglobal.net/~tyketto
PGP: 1024D/E319F0BF 6980 AAD6 7329 E9E6 D569 F620 C819 199A E319 F0BF

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