I first saw the Red Arrows when I was 10 in the early 70s when they had the Gnats and were allowed to low fly over the crowd. As the multicoloured smoke descended over the gasping audience the commentator said the dyes were mixed with kerosene and injected into the exhaust/tailpipe , which soon became apparent as the gasps of exhilaration turned into, gasps of where's the ruddy oxygen gone. Even at that age I thought the RAF were there to protect the population, not poison it ! That's the 70s for yer, never knew where the next threat was coming from.
