Question:  Royal Air Force Valley provides fast-jet training using an advanced trainer aircraft first flown in what year?
Sentence (from "North American T-6 Texan"): The North American Aviation T-6 Texan is an American single-engined advanced trainer aircraft used to train pilots of the United States Army Air Forces (USAAF), United States Navy, Royal Air Force, and other air forces of the British Commonwealth during World War II and into the 1970s.
Relevant evidence: No