The G22U appeared alongside its wide gauge counterpart in 1969. To separate itself from its predecessor G12 as well as the G22W, the G22U was identified by a U suffix to indicate that this model was supplied with traction motors adjustable to any rail gauge Universally (Metre Gauge up to Irish Gauge).
The G22U model found success among several buyers and were also built in different countries to suit the customers needs. The Yugoslav locomotives were equipped with a steam generator located in the high short hood. Both the Yugoslav Railways and Taiwan Railroad Administration purchased their G22U's with a unique A-1-A running gear configuration. This did not alter the models designation as the center axles were not powered nor were A-1-A trucks widely produced at the time.
This locomotive found itself to be very successful in the metre gauge lines of Brazil, as where most lines did not permit the use of six-axle locomotives around tight curves.
Production spanned from 1969 to 1974.
MACOSA G22U RFFSA Dynamics Numbers
This is a Machine Rail product.
Dynamic Numbers #1501-#1629
All Working Lights
Custom Realistic Cab
Scheduled Operational Physics
Animated Windows and Doors
HFD freight wagons included
Builder - MACOSA (under license from Electro-Motive Division)
Build Date - 1971-1973
Total Constructed - 129
Gauge - 1000mm
Engine - EMD 645E 12 Cylinders
Force - 1650HP