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4D (train): Difference between revisions

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| axleload =
| traction = [[Mitsubishi Electric|Mitsubishi]] [[Gate turn-off thyristor|GTO]]–4-quadrant [[Chopper (electronics)|chopper]] control
| traction motors = 8 × Mitsubishi MB-3303-B {{convert|170|kW|abbr=on|0}} 2-phase DC [[Brushed DC electric motor#Shunt wound motor|shunt-wound motor]]
| poweroutput = {{convert|1.361360|MWkW|0|abbr=on}}
| transmission = 4.94:1 (84:17) gear ratio<ref>{{cite web |title=Technical Report Vol.62 No.6 |url=https://www.giho.mitsubishielectric.co.jp/giho/pdf/backnumber/1988(vol62)/Vol62_06.pdf |website=[[Mitsubishi Electric]] |access-date=3 July 2024 |pages=53 - 58 |language=ja |date=June 1988}}</ref>
| transmission = 4.94:1 (79/16) gear ratio
| acceleration = {{convert|0.75|m/s2|abbr=on}}
| deceleration =
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| collectionmethod = [[Pantograph (transport)|Pantograph]]
| uicclass = 2′2′+Bo′Bo′+Bo′Bo′+2′2′
| bogies = [[Nippon Sharyo]] bolsterless<ref>{{cite book |last1=Allen |first1=Geoffrey Freeman |title=Jane's World Railways 1991-92 |date=1 November 1991 |publisher=Jane's Information Group |isbn=9780710609557 |page=75 }}</ref>
| bogies = [[Nippon Sharyo]] bolsterless
| brakes =
| safety =
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==Design==
[[File:Interior 4D 6000T.jpg|left|thumb|Vestibule, 6000M6000T Interior looking at stairs, seats and door entrance, 2000]]
A tender for the design and construction of 19 double-deck trains was opened on 24 November 1989.<ref name="newsrailmar11">{{Victorian Rail-Newsrail|title=4D Double-Deck Development and Demonstration Train|author=John Scott|month=3|year=2011|pages=78–79}}</ref> The number of carriages to be built was at the discretion of the builder, however it had to comply with capacity and length requirements.<ref name=newsrailmar11/> By 11 April 1990, when the tender was closed, a number of tenders were received, including from [[Commonwealth Engineering|Comeng]] and [[UGL Rail|A Goninan & Co]].<ref name=newsrailmar11/> However, the project was stopped by the [[Government of Victoria|State Government]], due to financial constraints.<ref name=newsrailmar11/> Instead, [[Public Transport Corporation|The Met]] was granted approval to acquire a single double-deck train for evaluation purposes.<ref name=newsrailmar11/> A contract was signed with Goninan in late 1990, for the delivery of a four carriage set.<ref name=newsrailmar11/>
 
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[[Category:Melbourne rail rollingstock]]
[[Category:Train-related introductions in 1992]]
[[Category:1500 V DC multiple units of Victoria (state)Australia]]