Originally Posted by John Craft:
Originally Posted by bbunge:
The AoS roundhouse is a typical medium-sized steam-era roundhouse, but the shop is small compared to steam-era shops. A large steam backshop could employ 1000+ machinists, boilermakers, pipefitters, carpenters, electricians, etc. This is what your tour guide was referring to.
Work like turning drivers was done in the backshop, not the roundhouse. Most roundhouses were limited to 'running repairs' like renewing rod bearings, fixing leaking flues, boiler washes / monthly inspections, etc.
You are correct. In the case of Spencer Shops on the Southern, repair work in the 37-stall roundhouse was limited to 3 days maximum. They had drop pits for wheelsets, cranes for moving parts, and plenty of tool chests, but that was all. Wheelsets were taken to the machine shop for replacing tires, other parts were taken to the boiler or flue shop, or the locomotive was repaired in place. The back shop (erecting shop) was where most of the steam locomotive repair and overhaul was done. There was space for up to 15 locomotives at a time, with at least one being returned to service every day. In all, there were up to 10 buildings being used in some capacity to repair and maintain steam locomotives, and over 3,000 people through WWII.
Today, stream locomotive restoration mainly takes place in roundhouses since those buildings have survived, while the others were torn down. If the whole complex did survive, it was turned into a museum like Spencer, Sacramento or Baltimore, mostly unavailable for huge restoration projects. At Spencer, most of the restoration is handled by volunteers, none of which worked with steam (or diesels for that matter) on mainline railroads. Spencer was lucky in that 20-30 of the original shop force returned in the 1980s to restore a steam locomotive, and passed most of their knowledge to younger volunteers on hand. I was one of those fortunate volunteers to learn this first-hand knowledge.
Restoration does take place today, but it takes longer than the 2 weeks it took to compete an overhaul at Spencer back in the 30s-40s. Now, it might be 6 - 12 months and cost $500,000 or more.