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Airspace


r22butters
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I feel kind of stupid asking this question, but here goes. If you are about to enter a class 'B' surface area, and Approach gives you clearance, along with skwak and altitude, can you enter? :o

 

I recall from my training days (years ago) that you had to get permission from the Tower, and that getting it from Approach is only good for the outer layers. All I found in the FAR/AIM was reference to the "Controlling Agency", with no specific mention of the Tower, or Approach, however I could quite easily just be missing it. :huh:

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Either approach or tower can give you the clearance.

 

It is approaches job to contact tower and coordinate with them that you are entering. If they clear you into B, you are cleared.

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The tower doesn't even control all the Class B airspace. The 'inverted wedding cake' includes a lot of area, and usually the tower only owns the airspace that goes to the surface, and up to ~2500'. It depends on the local letters of agreement, to which pilots are not privy, and in general don't need to know the details of. Tower and approach have direct dedicated landlines to each other, and coordinate aircraft in and out, and through, the airspace. If either tells you you're cleared into the Class B airspace, you're cleared, regardless of which facility actually owns it. If a controller clears you without coordinating with the appropriate facility, it's his deal, not yours, and you can't be violated because of it.

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Thanks for your responses. I suspected as such, I just couldn't seem to find where it was written down. Its kind of like AROW. I found the 'A', 'R', and 'O', and I know the 'W' is there, I just couldn't find where. The FAR/AIM isn't the easiest thing to navigate, kinda like the phone book, you have to figure out what 'they' put it under? :huh:

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I believe everyone else has answered the question, but I thought if you wanted a little extra "Light" reading, all the information you seek is in FAA order 7110.65 "Air Traffic Control"

 

http://www.faa.gov/documentLibrary/media/Order/ATC.pdf

 

Along with what FAR's apply to them, Air traffic controllers have to follow FAA Order 7110 as well. So if there is any question you ever had about why ATC said something or what they ment when they said it, should be in there.

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