CP Class 9020

3 ft 3+3⁄8 in)Wheel diameter950 mm (37.4 in)Prime moverS.A.C.M MGO V 12 ASHRRPM range1.500 RPMEngine type4-stroke DieselDisplacement54 L (54,000.0 cc)GeneratorAlsthom CC 830 H 10Traction motorsAlsthom TA 641 MCylindersV12Cylinder size175 mm × 192 mm (6.9 in × 7.6 in)TransmissionDiesel-ElectricGear ratio79:14MU workingWithin class, up to 3Train brakesWestinghouse air brake,
Vacuum brakeSafety systemsVACM dead mans switch

Performance figures
Maximum speed	70 km/h (43.5 mph)
Power output:	​
• Starting	1,050 hp (783.0 kW)
• Continuous	1,000 hp (745.7 kW)
Tractive effort:	​
• Starting	11,500 kgf (25,353.2 lbf)
• Continuous	10,600 kgf (23,369.0 lbf)

Career
Operators	Comboios de Portugal
Class	Série 9020
Numbers	9001 - 9004
Locale	Portugal
First run	1975
Disposition	seven sold to Madarail

Main reference^[1]

Série 9020 was a class of metre-gauge diesel locomotives built by Alsthom for the Portuguese Railways (CP). They entered service in 1975. By the early years of the 21st century the metre-gauge lines on which they operated (such as the Corgo line and the Tua line) have now almost all been closed, resulting in the withdrawal of the locomotives. After their withdrawal, some of the locomotives were sold to Madarail in Madagascar.

See also