Osaka Municipal Subway 50 series

The Osaka Municipal Subway 50 series (originally the 5000 series) is a Japanese city commuter electric multiple unit operated by the Osaka Municipal Transport Bureau from July 1960 to April 1994 on the Midōsuji, Tanimachi, Yotsubashi and Sennichimae Lines.
==History==
The 5000 series trains were the first "MM" trains introduced on the Osaka Municipal Subway to be powered by a third rail; these were largely based on the older 1200B series trains. Production started in 1960 and continued through to 1965. These were initially deployed on the Midōsuji and Yotsubashi Lines until the 1970s and were later moved to other lines. The sets were reclassified the 50 series in 1969 to standardize the model names with the introduction of the 30 and 60 series.
The sets were refurbished and upgraded in the 1980s, with some modified for through running to various Kintetsu lines; a particular location where refurbishments took place was the doors, where stainless steel doors were used to replace the older steel doors which were prone to rust. Scrapping of the 50 series began in 1989, with the sets spending their final years on the Sennichimae Line in 4-car formations. All sets were fully retired by April 1994.
One car, 5085, is preserved; it is currently located at the Morinomiya Depot, but is not usually viewable by the public except during special events. The set was repainted into its as-built appearance in 2011, but features a post-refurbishment interior and doors. The car is preserved back-to-back with 60 series car 6014.
==Design==
The 50 series sets feature a conventional front end with two headlights.
==Specifications==
Construction is of steel. The sets used resistor-controlled traction systems.
Category:Electric trainsets
Category:Osaka Municipal Subway trains
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