I'm a paramotor pilot operating under FAR 103, and I'm trying to determine who I need to ask for permission to fly in class E airspace that extends to the surface and is designated for an airport. For reference, the particular airport that I am inquiring about is GFL.
This appears to be the relevant subpart of FAR 103: §103.17
No person may operate an ultralight vehicle within Class A, Class B, Class C, or Class D airspace or within the lateral boundaries of the surface area of Class E airspace designated for an airport unless that person has prior authorization from the ATC facility having jurisdiction over that airspace.
Before I was aware of this restriction, the airport manager granted permission for me to fly to and from the airport with my paramotor. I have an access card, and he made clear the rules I am to follow, such as radio procedures and where I can launch and land.
However, this field does not have a control tower. Do I need to obtain permission from someone else to comply with §103.17? I'm not sure who the ATC facility having jurisdiction over that airspace
is.