Question: The Australian Lightwing SP-4000 Speed is designed and produced by Australian Lightwing of a town that lies on the Richmond River and serves as a gateway to what?
Sentence (from "Australian Lightwing SP-4000 Speed"): The Australian Lightwing SP-4000 Speed is an Australian kit aircraft, designed and produced by Australian Lightwing of Ballina, New South Wales.
Relevant evidence: Yes