T-6 is actually a military trainer like the British Tiger Moth, Miles Magister and higher-powered (and long forgotten) Master counterparts. One is that the only reason the Harvard was put in front of the Spitfire or Mustang on the training course was that the Harvard was cheaper to crash!
Mark Jefferies will fly the YAK 50. The USSR contender for the 1976 World aerobatic championships. This was the state of the art for competition