I read the 1961 ‘Earth Slip Near St Germans’ report with interest, because the location and date rang a bell. The train in trouble was the 2C74 05.10 St Austell – Plymouth local hauled by NBL Type 2s D6302 and D6324 working in tandem (not in multiple due to different control systems between Pilot Scheme and Production locos). Both locos were damaged badly enough to require returning to NBL in Glasgow for repair. They came back later that year – D6324 in October and D6302 in December – sporting those rather ugly Mark I headcode boxes in lieu of discs, the first WR hydraulics to be so converted, but still devoid of yellow warning panels since these only started appearing from January 1962 (ignoring D845’s experiment). D6302 gained the yellow panels during a visit to Swindon Works the following August but it’s not clear how long D6324 ran without them. Both locos received oversized yellow areas compared to the rest. Interestingly they remained the only converted members of the class for around 3 years, rebuilding of the other disc-fitted Type 2s commencing from late 1964. This makes it possible to identify the loco approaching Shepherds station in John Thorn’s photo dated September 1962 (posted last year to the Chacewater – Newquay branch image collection) as D6324.
To illustrate how far ahead these two rebuilds were, the 13 D8xx Warships were converted between 9/63 and 9/65, and the D6xx Warships between 12/64 and 5/67 (2 ½ years to do 5 locos.….these Far West exiles were clearly not a priority!)