Complex sentence: Bowen also led a series of lectures at Bently Priory, on the theory of radar guided night interception and concluded that the fighter would require a speed advantage of 20 to 25% over its target.
Split into simpler sentences: Bowen also led a series of lectures at Bently Priory on the theory of radar guided night interception. As a result of these lectures he concluded that the fighter would require a speed advantage of 20 to 25% over its target.