If I might be permitted to bend the controls of the time machine a little ...
Thu 10/04/86
37421 2330 Glasgow QS - Perth
37402 banking to Cowlairs
Fri 11/04/86
47630 0110 Perth - Inverness
47546 0502 Inverness - Elgin
There had been some 37s working Aberdeen - Inverness vice 47 for the previous few days. I have always rated this line, so I hoped my luck was in ...
37260 0647 Elgin - Inverness
37260 0832 Inverness - Aberdeen
37260 1140 Aberdeen - Inverness
I hoped the 1432 Inverness - Aberdeen would produce, but it was a 47. By way of a fill-in move, I spotted a required 47 piloting the 1430 Inverness - Edinburgh
47222 + 47634 1430 Inverness - Aviemore
47593 1630 Aviemore - Inverness
My luck was in, another 37 to Aberdeen, this time a 37/4:
37421 1732 Inverness - Aberdeen
37421 2055 Aberdeen - Inverness
47630 2330 Inverness - Stirling
Sat 12/04/86
37409 0437 Stirling - Glasgow QS
Rather than hang around at Queen Street for several hours, I did a fill-in move to Edinburgh and back:
47704 0700 Glasgow QS - Edinburgh
47704 0800 Edinburgh - Glasgow QS
37178 0905 Glasgow QS - Fort William
37405 1405 Fort William - Mallaig
374051550 Mallaig - Fort William
37178 1825 Fort William - Glasgow QS
The round trip with 37178 was an ADEX. It was providing copious amounts of steam heat throughout the trip, which I think was the last time I had steam heat on a "normal" train on BR. A few weeks later the No Heat summer season started, when there were all manner of NB locos to be had, but at the end of the season there was no return for steam heat.