I was just cloud watching yesterday when I saw something fly over. I assumed it was a plane. Then I thought, I can't see any wings, or a tail or windows. It was just white. Then I thought haha you can't see the wings etc. it could be a tictac UFO. Then I realised it was completely silent. We get a lot of air traffic round here as we are near a private airfield and that is the base for police, air ambulance, pylon helicopters etc and private aircraft, plus we are on several commercial flight paths and they always make a noise. In face less than a minute after I saw it a jet plane flew over, I couldn't see it but it was loud. Anyway, not saying it was a Tictac, it was moving like you would expect a small plane or helicopter to but why so silent, and why could I not see any features on it? It was too far away to take meaningful pictures.