55022 Royal Scots Grey & 50049 Defiance power past Bridge of Earn with the Railway Touring Company 1Z55 08:20 Inverness to Kings Cross 'Autumn Highlander' railtour on 8 October 2007. There was certainly no doubt when this train was approaching, as in addition to the distinctive Deltic whine, a plume of smoke could be seen rising above the tree tops over the fields to the right for over a mile! Considering the Deltic is obviously running on both engines, it was a surprise when the train passed under the bridge to hear that the 50 was also under full power! Needless to say 40145 on the rear of the train was taking it easy!