 To better test the needs of AI , an aircraft with the speed needed to intercept a modern bomber was needed . In October 1938 the team was provided with two Fairey Battle light bombers , which had performance and size more suited to the night fighter role . Battles K9207 and K9208 , and the crew to fly them , were sent to Martlesham ; K9208 was selected to carry the radar , while K9207 was used as a target and support aircraft . 
