Farnborough Air Show

[brockenspectre]

Does anyone know if it is possible that the A380 was heading eastwards overhead south-east London/Kent yesterday evening about 6pm? I was walking my dog in one of the parks here in Beckenham, heard an engine sound I didn't recognise and saw a shape in the sky I hadn't seen before - too "small" (?due altitude) and wrong wings for a 747 (the a/c was directly overhead) and it was making steady progress as opposed to a climb ... made me wonder if it was the A380, maybe around 6000'? I know ground/air perception is skewed but there was something way different about the aircraft I saw!! Engine sound was lower-toned and less whiney than a 747 too

Thanks to anyone who can help!