They were replaced with converted passenger-car inspection cars, or HiRail trucks, automobiles fitted with steel flanged wheels.
[1] In 1928, the Leopoldina Railway (de) purchased an inspection steam railcar by Sentinel Waggon Works.
[4] An engine of the same class was delivered to Rochester & Pittsburg Coal & Iron Company in 1903.
Examples of such engines include the Caledonian Railway Single, LNWR No.3020 'Cornwall' and NER No.
Dugald Drummond, when Chief Mechanical Engineer of the London and South Western Railway had a small 4-2-4T tank locomotive classed F9 with a small saloon body mounted on its rear as his personal transport around the L&SWR system on inspections and visits.
[9] In 1890, the London, Brighton and South Coast Railway built an inspection locomotive called Inspector.
It was used by the President of Philadelphia & Reading Coal and Iron Co. and other railroad executives on short business or inspection trips.