With thanks to
@lordmongrove for finding this online stash of 'Unexplained' magazines, here is the analysis of the so-called Welsh Triangle events by Hilary Evans that I hadn't read for nearly forty years:
https://archive.org/details/the-unexplained-part-44-optimized/page/874/mode/2up?view=theater
It does not make comfortable reading for anyone like my teenage self that took the Peter Paget and Pugh & Holiday books at face value and debunks some of the less credible claims. As regards those Broad Haven schoolchildren who claimed to have seen a cigar-shaped UFO:
View attachment 74212
I don't agree with all her conclusions - especially as regards the entity in the window of Ripperstone Farm being hoaxers* - but this article represents a worthy dose of realism after the national media sensationalised the events.
* There are witnesses to Billy and Pauline Coombes being genuinely frightened and the humanoid/entity did not vanish (do a runner) after it had their attention but lingered for many minutes, even after Billy had rung the farm manager. So given the location several miles from town and the layout of the site, any hoaxers would have had to do a serious amount of trespassing just to reach the farmhouse and therefore there was a significant risk of hoaxers being apprehended either at the scene or whilst making their escape. Much easier to scare some people down in the town.