Question: The Curtis Fling School was started by Glenn Curtiss to compete against the flying school of what brothers who made the first controlled, sustained flight of a powered, heavier-than-air aircraft on December 17, 1903?
Sentence (from "Curtiss B-8"): It powered the AEA June Bug in 1908, becoming the first Curtiss engine to power a heavier-than-air aircraft in sustained flight.
Relevant evidence: No