Was always fond of Jack when I often bumped into him at Wittering for the 899 NAS students' 'strips course', especially his love of extremely hot and spicy food! Stomach of steel and a wonderful sense of humour. RIP to a truly inspirational character that was taken too soon.
PS - I don't think you'll be short of dits on 7500 (that was one of Jack's name badges - SSR code for 'Hi-Jack')