What were some of the worst steam locomotives ever made in that they spent too much downtime in the maintenance shops for repairs and or burned too much fuel to be economical?
STEAM LOCOS IN PROFILE - Volume One - DVD Sample - LMS 4Fs
Locos in Profile Pre 1825 Locomotives - Part 4
Locos in Profile Precision Art Prints of British Steam Locomotives by Richard Green
Amer Collection GBL41 Stockton & Darlington Locomotion No.1 - 1825
Diesel Information ~ Mt Marlboroug.com by Yurie Goto - Issuu
Locos in Profile Pre 1825 Locomotives - Part 2
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Steam locomotive - Wikipedia