Alexander Dennis Enviro200

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Alexander Dennis Enviro200
NewFlyer MiDi
Stagecoach Wirral 36071 SN56AYF (8653035076).jpg
An Enviro200 Dart operated by Stagecoach Merseyside
Overview
Manufacturer Alexander Dennis
Production2003–2018
Body and chassis
Doors1 or 2 doors
Floor type Low floor
ChassisAlexander Dennis Enviro200
MAN 14.240
Powertrain
Engine Cummins ISBe (Enviro200)
MAN D0836 LOH 52 (MAN 14.240)
CapacityVarious, dependent on length and specification
Power output140 hp (100 kW) to 240 hp (180 kW)
Transmission Allison, Voith, ZF AS Tronic Lite, BAE Systems HybriDrive
Dimensions
Length8.9 to 11.8 m (29 to 39 ft)
Width2,440 mm (8.01 ft)
Height2,860 mm (9.38 ft)
Curb weight 13–14.4 tonnes (gross)
Chronology
Predecessor Dennis Dart SLF
Alexander ALX200
Plaxton Pointer
Successor Alexander Dennis Enviro200 MMC

The Alexander Dennis Enviro200 (previously known as the TransBus Enviro200) is a midibus that was manufactured by TransBus International and later Alexander Dennis between 2003 and 2018. The original TransBus Enviro200 design was innovative but ultimately unsuccessful, with few being sold before the introduction of the second generation Enviro200 (originally referred to as the Enviro200 Dart) revived sales for the product from 2006. It was supposed to be positioned in between a minibus and a rigid single-decker bus.

Contents

The Enviro200 was originally designed to be the replacement for the Dennis Dart SLF chassis and Alexander ALX200 and Plaxton Pointer 2 bodies. The Enviro200 MMC was launched in 2014, eventually replacing the original Enviro200 and Enviro300, which went out of production in 2018 and 2016 respectively. [1]

Over 6,000 Enviro200s had been built as of July 2017. [2] While most have been for British operators, examples have been exported to Australia, Hong Kong, Malaysia, New Zealand and Spain. [3] [4] [5] From 2017, the Enviro200 was also marketed in North America. Previously, a licence-built version of the model was built by New Flyer Industries and branded the MiDi.

First generation (2003–2007)

First generation Enviro200 at Cobham Bus Rally in 2013. Cobham Bus Rally 2013 - Flickr - Dave M Photography (8).jpg
First generation Enviro200 at Cobham Bus Rally in 2013.

The first generation Enviro200, then known as the TransBus Enviro200, was unveiled at Coach & Bus 2003 by the vehicle's then-manufacturer, TransBus International. Two diesel trial buses were initially produced for display in 2003.

The first generation Enviro200 was unique in that it had a door both at the front and at the rear of the bus, as such a layout is rare in the UK – most dual-door buses in the UK have a door at the front and another door around the centre of the bus. This door layout was achieved by placing the engine vertically at the rear offside together with other driveline components, which also created a full low floor layout, common on buses in Continental Europe. The vehicle also incorporated an "Enviro Pack", intended to vent exhaust emissions, noise and heat away from ground level and thus alighting passengers.[ citation needed ]

The innovative design meant that the Enviro200 could hold up to 25% more passengers than a vehicle of equivalent dimensions (10.4 m (34 ft 1 in) long, 2.4 m (7 ft 10 in) wide), with a capacity of 77, with 27 seated.

Rear view of a first generation Enviro200H, showing how the rear doors are arranged. This arrangement proved unpopular, and the type was a commercial failure. Enviro 200 rear.JPG
Rear view of a first generation Enviro200H, showing how the rear doors are arranged. This arrangement proved unpopular, and the type was a commercial failure.

A single demonstrator of the hybrid variant, the Enviro200H, was produced in 2004 and entered long-term trials in London; however the unconventional engine and door layout, [6] combined with the collapse of TransBus International in 2004, led to the type's commercial failure. As a result, it was the VDL SB120-based Wright Electrocity hybrid electric single-decker bus that was ordered instead by many operators.

Following the collapse of TransBus, the Enviro200 was rebranded as the Alexander Dennis Enviro200 by Alexander Dennis, the successor to TransBus. Only two more first generation Enviro200s were built following the collapse of TransBus, one diesel and one hybrid vehicle, delivered to Far East Travel of Ipswich in early 2007. This pair, and the original London demonstrator, have since passed to Buses Excetera of Guildford.

The first generation Enviro200 was offered alongside the second generation Enviro200 Dart for a time, but received no further orders following 2007 and was retired in favour of the new model. Only five examples were built and only one is known to exist today being the sole hybrid demonstrator for London, SN54 GRU. It was converted to diesel during its working life after its life as a demonstrator and is currently being restored.

Second generation (2006–2011)

A second generation Enviro200 operated by Arriva Yorkshire. Arriva Yorkshire 1066 YJ09 CVE.jpg
A second generation Enviro200 operated by Arriva Yorkshire.
A second generation Enviro200 operated by Panther Travel. SB09PAN-YX09FLE-4 131018 CPS (39964394313).jpg
A second generation Enviro200 operated by Panther Travel.

The second generation Enviro200, also known as the Alexander Dennis Enviro200 Dart, was launched in August 2006. The Dart moniker – in reference to the Dennis Dart, from which the Enviro200 Dart was developed – was added in order to prevent confusion with the first generation TransBus Enviro200, which remained in production alongside the Enviro200 Dart for a time. [7]

The second generation Enviro200 retained the conventional rear-engined layout of the Dennis Dart, and was offered with a choice of four or six-cylinder Cummins ISBe Euro IV engines with a range of transmission options, and featured new front and rear axles. It also offered the same seating capacity of the Plaxton Pointer and Alexander ALX200 (which it ultimately replaced) at launch, but with more fixed seats rather than 'tip up' seats for each length. The vehicle also featured integrated chassis and body multiplexing, and cantilevered seats, to reduce weight. Externally, the bus features the same front panel as the double-deck Enviro400, projecting a "family look" onto the two models.

The Enviro200 chassis was also soon made available with Optare Esteem and MCV Evolution bodywork; this was followed in February 2007 by the launch of the Enviro200 body on MAN 14.240 chassis. [8] This gave prospective operators the option of EGR emissions reduction for the Enviro200, as some operators prefer this technology to Cummins' SCR used on the integral design.

In August 2007, due to significant orders for the Enviro400, Alexander Dennis announced that the production of Enviro200 would be moved from its plant at Falkirk to the recently acquired Plaxton factory at Scarborough. This meant that the Scarborough factory would once again be producing the bodywork for a variation of the Dart chassis, while also producing the bodywork for the MAN 14.240 with both Plaxton Centro and Enviro200 bodies simultaneously.

In 2008, Alexander Dennis unveiled the hybrid-electric powered version of Enviro200, known as the Enviro200H, using BAE Systems's HybriDrive series drive system with the Cummins ISBe 4-cylinder engine fitted for power generation. [9] [ page needed ] This model was more successful than the original hybrid Enviro200, albeit only by selling five examples to London United for use on route 371 and nine to the Strathclyde Partnership for Transport, with five operated by Henderson Travel of Hamilton and the remaining four operated by Colchri Coaches of Renfrew. [6]

Third generation (2009–2018)

A third generation Enviro200 operated by Newport Transport showing the LED lights below the headlights. NEWPORT TRANSPORT - Flickr - secret coach park (5).jpg
A third generation Enviro200 operated by Newport Transport showing the LED lights below the headlights.
A third generation Enviro200 operated by Arriva showing the blank space below the headlights. Arriva Midlands North 2150 MX12 JXN.jpg
A third generation Enviro200 operated by Arriva showing the blank space below the headlights.

In 2009, the third generation Enviro200 was launched, dropping the Dart moniker from the previous model. Compared to the previous model, the third generation Enviro200 received a major chassis redesign, including a front-end facelift in order to allow the type to comply with European Community Whole Vehicle Type Approval (ECWVTA) regulations. Some of the major external changes included the introduction of white LED daytime running lights below the headlights, the relocation of the offside emergency door, redesigned front and rear bumpers and the introduction of several new Enviro200 lengths. Additionally, the third generation Enviro200 introduced a Euro V-compliant drivetrain.

The Alexander Dennis Enviro200 MMC was introduced in 2014, as the Enviro200's eventual replacement. Production of the original Enviro200 alongside the Enviro200 MMC continued for a time, with the third generation Enviro200 referred to by Alexander Dennis as the Enviro200 Classic from 2015. Production of the third generation Enviro200 ceased in late 2018.

North America

A Philly Phlash New Flyer MiDi bus in Philadelphia Krapf Bus New Flyer Industries Midi (MD35) 1415 Phlash bus.jpg
A Philly Phlash New Flyer MiDi bus in Philadelphia

In May 2012, Canadian bus manufacturer New Flyer introduced a license-built version of the third generation Enviro200 as the New Flyer MiDi, [10] modified for the North American market. [11] This clouded New Flyer estimated the size of the medium-sized bus market at approximately 1,000 units per year. [10] [11]

Initially the MiDi was built at the New Flyer factory in St. Cloud, Minnesota. [11] [12] In May 2017 production was transferred to Alexander Dennis's own facility in Nappanee, Indiana, which manufactured the North American variant of the Enviro500 double-decker bus since 2014. The bus now carries the same Enviro200 branding as the international version, [13] and is fully "Buy America" compliant. [12]

Currently, the third-generation North American Enviro200 bus is offered in 30-foot (9.1 m) and 35-foot (10.7 m) lengths, [10] [12] with or without a rear exit door, equipped with a 250-hp Cummins ISB engine and an Allison B300R 6-speed transmission. [12]

See also

Related Research Articles

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The Alexander Dennis Enviro500 is a three-axle double-decker bus built by Alexander Dennis in the United Kingdom. It was unveiled in 2002 and is one of the Enviro-series bus models made by TransBus/Alexander Dennis. The bus was sold on diesel or hybrid-electric powertrains and on Volvo chassis as a bodywork.

<span class="mw-page-title-main">Alexander Dennis</span> Bus manufacturer based in the United Kingdom

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<span class="mw-page-title-main">Alexander Dennis Enviro300</span> Full-size single-deck bus body and chassis

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<span class="mw-page-title-main">Alexander Dennis Enviro400</span> Low-floor double-decker bus chassis and bodywork

The Alexander Dennis Enviro400 is a twin-axle low-floor double-decker bus that was built by the British bus manufacturer Alexander Dennis between 2005 and 2018. It replaced the Alexander ALX400. In 2014, the Enviro400 was succeeded by the updated Alexander Dennis Enviro400 MMC and production of the classic Enviro400 ceased in 2018.

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The Alexander Dennis Enviro500 MMC is a low-floor, three-axle double-decker bus produced by the British bus manufacturer Alexander Dennis since 2012, replacing the Alexander Dennis Enviro500. The Enviro500 MMC is available powered by either Euro VI diesel or hybrid-electric and later fully-electric powertrains.

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<span class="mw-page-title-main">Alexander Dennis Enviro400 MMC</span> Low-floor double-decker bus

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<span class="mw-page-title-main">Alexander Dennis Enviro400 City</span> British-built model of double-decker bus, built since 2014

The Alexander Dennis Enviro400 City is a low-floor double-decker bus produced by the British bus manufacturer Alexander Dennis since 2015, as an alternative to the standard Alexander Dennis Enviro400 MMC bodywork. The Enviro400 City is produced at Alexander Dennis' Falkirk and Scarborough factories in the United Kingdom. It is available as a complete integral diesel or hybrid bus, as well as the Enviro400EV complete integral battery electric bus or Scania N280UD compressed natural gas-powered chassis.

References

  1. ↑ "An operator's bus – Alexander Dennis Limited's new Enviro400". An operator's bus – Alexander Dennis Limited's new Enviro400. 12 May 2014. Retrieved 5 November 2014.
  2. ↑ Alexander Dennis Enviro 200 Dart Bus Fleets on the Web
  3. ↑ Shoal Bus Australian Bus Fleet Lists
  4. ↑ "KCRC purchases the newest environmentally friendly buses". kcrc.com. Archived from the original on 25 May 2008. Retrieved 21 April 2018.
  5. ↑ Export wins boost ADL order book to record £350m Archived 29 October 2014 at the Wayback Machine Alexander Dennis
  6. 1 2 Jenkins, David (6 May 2024). "Hybrid buses in the UK" . Buses . No. 831. Stamford: Key Publishing. pp. 26–32. Retrieved 26 May 2024.
  7. ↑ Rooney, Steve (2 August 2006). "ADL Enviro200Dart launch - son of Dart". Bus & Coach Professional. Archived from the original on 12 December 2007. Retrieved 31 May 2020.
  8. ↑ "ADL makes new links with MAN and Scania". Bus & Coach Professional. 30 January 2007. Archived from the original on 8 November 2007. Retrieved 25 May 2024.
  9. ↑ Buses. No. 645. Hersham: Ian Allan Publishing. December 2008.{{cite magazine}}: Missing or empty |title= (help)
  10. 1 2 3 "New Flyer branching out to mid-sized buses". Winnipeg Free Press . 8 May 2012. Retrieved 20 February 2016.
  11. 1 2 3 "Midi-bus could be big boost". Winnipeg Free Press . 8 August 2013. Retrieved 20 February 2016.
  12. 1 2 3 4 "New Flyer MiDi" (PDF). New Flyer. Archived from the original (PDF) on 15 June 2016. Retrieved 20 February 2016.
  13. ↑ Peat, Chris (11 May 2017). "ADL takes the reins in North America". Bus & Coach Buyer. Retrieved 20 November 2017.

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