Osaka Metro 80 series

The Osaka Metro 80 series is a Japanese linear-motored city commuter electric multiple unit operated by the Osaka Municipal Transport Bureau and later Osaka Metro since December 2006 on the Imazatosuji and Nagahori Tsurumi-ryokuchi Lines.
==History==
The 80 series trains were the first rolling stock intended for use on the Imazatosuji Line, slated to begin operations in 2006. The first set, 8101, was completed in 2004 and was tested on the Nagahori Tsurumi-ryokuchi Line until the Imazatosuji Line was completed in 2006. After the latter line was completed the sets were put into service on that line. 
Due to a revised timetable for the Imazatosuji Line in 2013, one of the sets, 8117, was thus made surplus. It was then refurbished, renumbered 8131 and redeployed on the Nagahori Tsurumi-ryokuchi Line in March 2019.
==Design==
The 80 series uses a fairly modern design with a body made of an extruded aluminum alloy. All sets have painted white aluminum bodies with orange accents indicating the line the sets serve on, with "LIM" logos indicating the sets have a linear motor. The design of the sets is largely similar to the Osaka Metro 70 series trains although there are minor differences.
Set 8131, after being redeployed to the Nagahori Tsurumi-ryokuchi Line, features the same general design but with green accents and orange pinstriping. The Osaka Metro logo is seen on the cabs.
==Specifications==
Construction is of an extruded aluminum alloy. The sets use Hitachi IGBT drives which produce a sharp hissing noise. 
The use of linear motors in the sets gave the sets an extremely unique droning noise once the sets reached high enough a speed; this characteristic is only found on linear-motored trainsets. In addition to the odd-sounding motors, the linear motor system does provide some benefits, such as allowing for smaller cars and tunnels; however, this disallows the 80 series sets from performing through-running to and from other lines due to technological incompatibilities, in addition to most other lines having technology that only works with rotary-motored trains.
While it is technically possible for rotary-motored trains to operate on the Nagahori Tsurumi-ryokuchi and Imazatosuji Lines, where the 80 series sets see service, a different loading gauge and smaller tunnels prevent such occurrences.
Category:Osaka Metro trains
Category:Electric trainsets
Category:Osaka Municipal Subway trains
Category:Kawasaki locomotives
Category:Kinki Sharyo locomotives