How many T-53s were actually completed?
17 completed, of which 15 were T53B (1 protype T53A and 1 T53C)
4 under construction were detroyed by fire.
Yorkshire Sailplanes built at least 1 YS-53, with extended fin & rudder.
JW411 - would DSB have been Dougie Bridson? (I think OPSEC no longer applies to this). The most 'intrepid' pilot I had the pleasure to fly with. Quote 'It was a relief to go solo - my instructors seemed determined to stop me killing myself'.