6
$\begingroup$

enter image description here

I'm having an internal debate on interpreting the Class D ceiling in part of the the Memphis TAC. My understanding was in the case of a Class D under a Class B shelf, the ceiling of the Class D ends at the floor of the Bravo, or in this case: 1,800ft MSL.

However, the [29] box printed inside the area of the Class B/D is causing confusion. Is this explicitly stating the Class D does extend to 2,900ft MSL or does it end at 1,800ft MSL as I originally thought?

Improve this question
$\endgroup$
2
  • $\begingroup$ As has been noted in a comment, this question could use some clarification to indicate that you are only asking about the part of the Class D airspace that is charted as appearing to underlie a Class B shelf with a 1800' MSL floor (if you are). However, I see you have not been active on ASE since this question was posted, so... $\endgroup$
    – quiet flyer
    Apr 16, 2021 at 23:05
  • $\begingroup$ PS I think the fact that they chose to put the boxed "29" numeral in the western part of the Class D airspace rather than the eastern part is of no consequence whatsoever. $\endgroup$
    – quiet flyer
    Apr 16, 2021 at 23:07

1 Answer 1

Reset to default
8
$\begingroup$

The Class D airspace surrounding the Olive Branch airport extends upward to 2900 feet msl, excluding the Class B airspace. So, your understanding is correct.

Here is the official description of this Class D airspace from FAA Order 7400.11, Airspace Designations and Reporting Points: (emphasis is mine)

ASO MS D Olive Branch, MS Olive Branch Airport, MS (lat. 34º58'44"N., long. 89º47'13''W.)

That airspace extending upward from the surface to and including 2,900 feet MSL within a 4-mile radius of Olive Branch Airport; excluding that airspace within the Memphis Class B airspace area. This Class D airspace area is effective during the specific days and times established in advance by a Notice to Airmen. The effective days and times will thereafter be continuously published in the Airport/Facility Directory.

AMENDMENTS 04/15/04 69 FR 5009 (Added)

Improve this answer
$\endgroup$
3
  • 6
    $\begingroup$ Three are two different class B shelves involved. The one directly over OLV doesn't start until 3000. So the D ceiling is 2900 there. But the section of B closer to MEM are down to 1800 ft, so the D ceiling drops down with it to <1800 ft $\endgroup$
    – TomMcW
    Apr 2, 2018 at 17:56
  • 1
    $\begingroup$ I used to teach out of KOLV, and the only NASA Report I've ever filed was for accidentally busting the MEM B airspace. So I will concur. If you fly west of Olive Branch, you better be low. $\endgroup$
    – Shawn
    Apr 2, 2018 at 20:11
  • $\begingroup$ This answer is not inconsistent w/ the comment from TomMcW, but it could be clarified to make the point more clearly-- $\endgroup$
    – quiet flyer
    Apr 16, 2021 at 23:08

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.