NAJN8JTZ6oi3724zkP34M5LMo1_500 Published on September 13, 2017 in 13 September 1931Full resolution (500 × 297) ← Previous Next → Lucy, Lady Houston, with the Royal Air Force High-Speed Flight, 1931. R.J. Mitchell, designer of teh S-series racers, is standing at right. (Royal Air Force Museum)