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Old December 18th 07, 03:25 AM posted to rec.aviation.piloting
Mxsmanic
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Default Class B airspace notation

WingFlaps writes:

You need to understand the vertical relationship between airspaces.
Have a look at a sectional and think about it. Why would you choose to
fly on the vertical limit between to airspsaces anyway?


I don't know, but if the charts didn't use the + and - notation, you'd be able
to, and you'd have a defense for doing so if you were called on it. Clearly,
the FAA doesn't want to leave that loophole open.