Ah yes; Jan Coolhaas! Not so much an old Gliding mate but to me he was Mr Coolhaas!
Former colleague, old gliding mate of Pinky,
After all, he was a good 30 or so years older than me!
I still have the scoreboard nameplate of his from the '72/73 (?) National Gliding Competitions when he was flying a HP14 which broke up in flight, and he had to take to the 'chute.
I always feel somewhat privileged to have known a lot of the early Aussie Gliding fraternity.