Snr Tec mid 60's to early 70's. A great mate of Frank Balfour. Frank and Darryl built a "Swamp Boat" in the prop dept/OB vehicle garage. It was powered by an old VW motor and driven by the prop from a wrecked aircraft. Unstable, very dangerous and great fun (No....I'm not going to say if that was Frank, Darryl or the boat).