Let's discuss-- Part 103.17-- ultralight flight in Class-E-to-surface "extensions"

[Sam Buchanan]

There might be some other means of "prior authorization" that doesn't require radio request in flight. Such as a permit or special airspace training or something for local 103 operations. Certificated pilots don't need prior authorization in good visibility, and a well trained pilot in a 103 would be no different.

There is no such animal as a "well trained" ultralight pilot, PART 103 doesn't spell out any training requirements for UL pilots.

If 103 doesn't allow an ultralight access to a particular type of airspace it doesn't matter what type of training the pilot possesses, the ultralight is not be operated in that airspace.