SOME of the so-called ‘legacy’ motion acquired for use on new-build ‘Patriot’ No. 5551 The Unknown Warrior is to be replaced owing to the hidden risk of potential failure.
Following discussions with the Princess Royal Class Locomotive Trust (PRCLT), the contractor employed to complete the new-build Fowler 4-6-0, the LMS-Patriot Project has decided that using the legacy motion parts could cause problems in the future.
The team obtained a number of secondhand ‘original’ LMS/ BR motion parts early on in the build, including the ex-‘Jubilee’ coupling rods, one outside and one inside connecting rod, and various parts of the motion and valve gear.
However, it has since been discovered that one of the radius rods has a previous repair, which has weakened the part to the point of being unsuitable for further use.