EMD GA18

Specifications
Specifications
Configuration:;
• AAR	B-B
Gauge	1,000 mm (3 ft 3+3⁄8 in); 3 ft 6 in (1,067 mm)
Driver dia.	32 in (813 mm)
Wheelbase	5 ft 8 in (1.73 m) (Each truck)
Length	38 ft 0 in (11.58 m)
Width	9 ft 8+3⁄4 in (2.97 m)
Height	12 ft 2+11⁄16 in (3.73 m)
Axle load	13.5T
Loco weight	108,000 lb (48,990 kg) (54T)
Prime mover	GM 8-645E
Engine type	V8 2-stroke diesel
Aspiration	Roots blower
Traction motors	Two D75MC DC
Cylinders	8
Loco brake	Straight air
Train brakes	Air(Taiwan, Chile), Vacuum (Zambia) schedule 26-LA

Type and origin
Type and origin
Power type	Diesel-electric
Builder	GM-EMD La Grange, Illinois, USA
Model	GA18
Build date	February–November 1969
Total produced	7

EMD GA18
EMD GA18
	Taiwan Railway Administration S405 on display at Miaoli Railway Museum
Power type
Type and origin
Power type	Diesel-electric
Builder	GM-EMD La Grange, Illinois, USA
Model	GA18
Build date	February–November 1969
Total produced	7
Configuration:;
Specifications
Configuration:;
• AAR	B-B
Gauge	1,000 mm (3 ft 3+3⁄8 in); 3 ft 6 in (1,067 mm)
Driver dia.	32 in (813 mm)
Wheelbase	5 ft 8 in (1.73 m) (Each truck)
Length	38 ft 0 in (11.58 m)
Width	9 ft 8+3⁄4 in (2.97 m)
Height	12 ft 2+11⁄16 in (3.73 m)
Axle load	13.5T
Loco weight	108,000 lb (48,990 kg) (54T)
Prime mover	GM 8-645E
Engine type	V8 2-stroke diesel
Aspiration	Roots blower
Traction motors	Two D75MC DC
Cylinders	8
Loco brake	Straight air
Train brakes	Air(Taiwan, Chile), Vacuum (Zambia) schedule 26-LA
Maximum speed
Performance figures
Maximum speed	45 mph (72 km/h)
Power output	1,000 hp (750 kW)
Locale
Career
Locale	Taiwan (5), Chile (1), Zambia (1)
Disposition	Most scrapped, with the only known preserved example being S405, owned by Taiwan Railway Administration

The EMD GA18 was an export locomotive built by GM-EMD in 1969. The GA18 was a derivative of the EMD G18 and was designed as an extremely light locomotive with low axle loading which used freight car trucks driven by cardan shafts and two traction motors attached to the underframe. It was the successor model of the EMD GA8. They were powered by an EMD 8-645E prime mover rated at 1100 bhp and 1000 hp for traction.^[1]^[2] Only seven units were built.^[3]

Original Owners

Chile

1 FCAB 953

Taiwan

5 Taiwan Railway Administration S401-S405

Zambia

1 Nchanga Consol Copper 10

Taiwan Railway Administration

Taiwan Railway Administration purchased five GA18 locomotives in 1969^[1] which were equipped with special cab signal display and track sorting devices for use as Qidu hump yard switching locomotives. They were named the S400 series by the TRA. In addition to yard switching, the TRA S400 series GA18's were also used to pull short run commuter trains.^[4] After the closing of Qidu hump yard, the S400 series were used as general road switchers until their retirement. All have been scrapped with the exception of S405 which has been preserved and restored in its original blue paint scheme, and S402 which is currently stored in a half-dismantled state, Currently awaiting scrapping as it's nearly impossible to restore. Both locomotives are located in Taipei Railway Workshop

Gallery

TRA S400 series GA18 pulling a coal train
Disused TRA S402 at Taipei Railway Workshop
Taiwan Railway Administration S405 on display at Miaoli Railway Museum (Currently moved to Taipei Railway Workshop)
TRA S405 control stand
TRA S405 cab signal display for hump yard operation

References

^ ^a ^b "GM Diesels Set Sail For Taiwan". Railway Age. 167: 97. 8 December 1969.
^ Jane's World Railways Fourteenth Edition 1971-1972. 1972. p. 413.
^ "Export GA18 Order Numbers". The UNofficial EMD Homepage.
^ Extra 2220 South May-June 1971. 1971. p. 12.

[taiwan-1] "GM Diesels Set Sail For Taiwan". Railway Age. 167: 97. 8 December 1969.

[2] Jane's World Railways Fourteenth Edition 1971-1972. 1972. p. 413.

[3] "Export GA18 Order Numbers". The UNofficial EMD Homepage.

[4] Extra 2220 South May-June 1971. 1971. p. 12.

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