{{Infobox Train
|background=
|name=NZR FP/FT class Matangi
|image=First Matangi Korea.jpg
|imagesize=300px
|caption=The first of the new Matangi class units outside its factory in Changwon, South Korea in April 2010. The FP carriage is closest to the camera.
|interiorimage=Matangi artist interior.jpg
|interiorcaption=Artist's impression of the interior of a FP carriage of the Matangi EMU
|service=planned August 2010
|manufacturer=Hyundai Rotem/Mitsui
|factory=Changwon, South Korea
|family=
|replaced=
|yearconstruction=2008 - 2010
|yearservice=planned August 2010 - June 2011
|refurbishment=
|yearscrapped=
|construction=46
|numberbuilt=2
|numberservice=
|numberpreserved=
|numberscrapped=
|formation=1 FP power car + 1 FT trailer per unit
|designation=FP 4103 - FP 4610 FT 4103 - FT 4610
|capacity=147 sitting, 230 standing, 337 total[ ]
The NZR FP class is a class of two-car electric multiple units under construction for use in Wellington, the capital city of New Zealand. The units, each made up of a FP power car and a FT trailer car, are designed to run services on Wellington's 1500V DC overhead electric suburban lines. They are to be owned by Greater Wellington Rail Ltd, a subsidiary of the Greater Wellington Regional Council (GWRC), and operated by Tranz Metro, the Wellington suburban service subsidiary of government-owned rail operator KiwiRail. The units are officially named Matangi, coming from the Maori word for wind or breeze.
Forty-eight Matangi EMUs were ordered by GWRC in July 2007 to increase capacity on the Wellington network, and to allow the last of the DM/D class multiple units, supplied by English Electric in 1949, to be withdrawn from revenue service. Hyundai Rotem in South Korea was awarded the construction contract for NZ$210 million, with the first unit planned to enter service in 2010.
The units will provide suburban services on the Hutt Valley line to Upper Hutt, the Paraparaumu line to Paraparaumu and Waikanae, the Melling Branch and the Johnsonville Line. A large amount of preparation works has been done in the Wellington region to allow the units to run on the existing electrified lines: clearances in tunnels, at platforms, and under some bridges on the Johnsonville Line had to be increased to take the new Matangi trains, as well as the existing fleet of EM/ET class electric multiple units. ONTRACK (now KiwiRail Network) has installed ten new rectifier substations along the network to increase electrical supply for the new trains, and has hardened the signalling system against interference from the new trains' AC traction equipment.
As of 14 July 2010, the first Matangi unit, FP/FT 4103, has left South Korea and is currently being shipped to New Zealand. 4103 is expected to arrive in New Zealand in early August 2010. After testing in Wellington and the arrival of more units from October 2010 onwards, the Matangi units are expected to enter revenue service on the Hutt Valley line by the end of 2010. In 2011, they will be progressively introduced to the Johnsonville and Paraparaumu/Kapiti lines, with the units running on all lines by July 2011.
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