120 km/h (75 mph)
ALCO RSD-39 Wikipedia
The ALCO RSD-39 was a six axle, low axle weight diesel-electric locomotive built by ALCO and under license by Euskalduna.
Fifty units were built for Alco between 1965—1967 for RENFE, forming part of Renfe class 313. Other versions were exported to railways in South America.