Bit of an odd one to ask here since I'm Liverpool-based so definitely wasn't there, but I do have a question for those who saw it. Was there any sound at all? The reason I ask is I've been going back through some old EVP recordings from a session I did near a reported UAP hotspot up in the Pennines a few years back, and I'm wondering if the complete absence of sound is consistent with what other witnesses describe for triangular craft specifically.
Also did it move in a straight line or was there any of that classic sudden directional change behaviour? I've seen a couple of reports from the US where triangles seem to hover and drift rather than dart about like the tic-tac types do. Trying to build up a better picture of whether triangular sightings are consistently different in behaviour from other shapes or if people are just noticing shape more than movement pattern.