Stage 5 -Pony Truck

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Pony Truck construction

Truck assemblies including - bolsters - springing and wheelsets

Note 1 -Pony Trucks:

Eddie mentions that Gresley was very fond of swing links for side control of bogies and pony trucks and the A1 Pacific’s and all the pony truck engines were so fitted. The riding of the Pacific’s was not particularly good with the single bolster design used and they tended to be over-sensitive to track irregularities and all the engines ultimately had the bogies modified to spring side control.