In article , Iain Rae
writes
We were ridge walking and did the hear noise, look up..., look
round..., look up again... "oh look he's down there" thing which you
get used to with jets but I still find odd with something that big.

Years ago I saw two pairs of Tornados very low over Thirlmere, I was
halfway up Helvellyn at the time.

--
John