Which parts of class E airspace can an ultralight (part 103) fly in without prior ATC authorization?
Is it possible for a non-towered airport to have keyhole extensions Class E starting at the surface?
When did this content first appear in the "Airspace" entry of the "Legend" section of the Airport/ Facilities directory?
Why does the surface-level Class E airspace at SIT/PASI (Sitka Alaska) extend so far to the northwest?
In the US, are there any operational control towers located in surface-level Class E airspace or in Class G airspace?
What airspace class is the New York Hudson/East River SFRA airspace, and what is its visibility requirements?
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