He was Wg Cdr Walter 'Taffy' Holden, and was CO of No.33 MU at Lyneham. He was an Eng branch officer, but had done a flying course (on Chipmunks and Harvards) so wore wings.
Lyneham was about to close as an MU, and the last (or one of the last) 'inmates' (XM135, the Lightning now at Duxford) had a persistant snag that only showed itself under acceleration. Lyneham then had no TP, and had to wait for someone to pitch up from elsewhere, so the decision was taken that Holden himself would make a couple of runs along the runway.....
Which is why he did it in blues, with no helmet, not strapped in, and with pins still in the seat. So when he inadvertently pushed the throttles past the detent into reheat and was not immediately able to disengage, he had no option other than to take off, and once airborne, had no option other than to try to land.
Mercifully, he got down safely (after two circuits, IIRC).
He ended his career as OC Basic Studies Wing (again IIRC) in the late 1970s.