Steam Improvements of
the Last 30 Years
updated 02/19/2000
South African Railways Class 26 4-8-4
#3450
photo courtesy of David Guelpa
| This locomotive was extensively
modified in the early 1980s by David Wardale, and
was intended as the prototype for a fleet of
improved steam locomotives for the South African
Railways. Originally a class 25NC, #3450 was
equipped with a dual Lempor exhaust system, Gas
Producer Combusion System, enlarged superheater
(using a header from a GMAM Garratt), feedwater
heater, enlarged steam chests, improved piston
valves, compressed air sanding, an enlarged coal
bunker, and other improvements. During testing,
the locomotive proved capable of achieving nearly
5000 DBHP, believed to be the highest output
attained by any locomotive on Cape Gauge. |
|
