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Can some explain the airspace around oakland to me What does T -------- SFC mean I presume the lower limit of the Class C is surface What does the T represent sorry to sound so silly but I have only just got a SEC map and i'm trying to learn your ways Declan

The OAK charlie airspace lies underneath the SFO bravo airspace. The "T" indicates that the charlie airspace terminates at the base of the adjacent bravo airspace. In OAK's case that puts more or less all runways under bravo airspace at 2100 ft MSL. The charlie airspace to the north of the airport extends to 3000 ft MSL. It's notated this way because charlie airspace normally extends to 4000 ft AGL, so you'd expect a sea-level airport to have charlie airspace to 4000 ft MSL. This isn't the case in Oakland, and now you know why. =)

T _____ SFC over OAK means the Class C airspace extends from the surface to the base of the overlying Class B airspace. Hope this helps declanfogarty.