My parents had 3DB blaring its cheesy music, advertising and horse racing through the house for most of the early seventies. I also remember the noise of the Seabee off Mornington, 3DB called it 'The Flying Tadpole' and occasionally aired broadcasts from its pilot who they called 'Snoopy' (very original). That wouldn't have been you, would it George?
As an aside, Richard Bach ('Jonathon Livingston Seagull' etc.) included a story on flying the Seabee in a collection of his short stories and articles.