Who might have filmed this?
Some marvellous helicopter filming on this video of railway footage probably from the 1990s.
"Aerial Voyage - Trains Filmed From Above"
Many of the shots are filmed below the level of the line and some in front and just above the trains. From the comments these must be from British Rail's own advertising filming - there is a sequence of a Royal Mail train passing up the Lune Valley near the Lake District and mention is made of it being a special train filmed to duplicate the original black and white film of W.H Auden's The Postal Order.
Anyone know who might have been involved in filming this?
Near the end of the video there is a sequence crossing Rannoch Moor in the highlands with the helicopter very close to the locomotive. At about 57:16 you can see the reflection of the white helicopter in the loco windows and to my untrained eye it looks like a Squirrel?