Alexander Dennis Enviro300

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Alexander Dennis Enviro300
Minehead Avenue - First 67708 (SN60EAO).JPG
Buses of Somerset second generation Alexander Dennis Enviro300 in Minehead in May 2018
Overview
ManufacturerTransBus International/ Alexander Dennis
Production2001–2008 (1st generation)
2007–2015 (2nd generation)
Assembly Falkirk, Scotland
Body and chassis
Doors1
Floor type Low floor
Low entry
ChassisAlexander Dennis Enviro300
MAN 18.240 and 18.250
Volvo B7RLE
Scania K230UB
Related Enviro200, Enviro350H, Enviro400, Enviro500
Powertrain
Engine Cummins ISBe (Enviro 300/MAN 18.240 retrofits)
MAN D0836 (MAN 18.240)
Volvo D7E (Volvo B7RLE)
Scania DC9/OC9 (Scania K230UB)
Capacity43 to 80 seated
Power output185–250 hp (136–184 kW)
Transmission ZF Ecomat/EcoLife
Voith DIWA
Allison
Dimensions
Length11.8–12.8 m (38 ft 9 in – 42 ft 0 in)
Width2.54 m (8 ft 4 in)
Curb weight 14.4–18 t (14.2–17.7 long tons; 15.9–19.8 short tons)
Chronology
PredecessorBody: Alexander ALX300
Chassis: Dennis Lance
Successor Alexander Dennis Enviro200 MMC

The Alexander Dennis Enviro300 (previously known as the TransBus Enviro300) is a light-weight full-size single-decker bus that was built by Alexander Dennis and its predecessor TransBus International between 2001 and 2015. The design was the first of the new Enviro range of buses from TransBus and also the first bus to be built as an integral bus by TransBus.

Contents

The Enviro300 was introduced in order to fill a gap in the manufacturer's product range. At the beginning the Cummins ISBe220 5.9-litre Euro III engine was provided as standard, but for Euro IV and V, the engine was the 6.7-litre ISBe with 225 hp for Euro IV and 225 or 250 hp for Euro V. There was a choice of 3 gearboxes: ZF Ecomat (originally 5HP502C, then 6HP504C), Allison T280R and Voith DIWA 854.5 (originally DIWA854.3E). The second generation Enviro300, with front end redesigned to match the Enviro200 and Enviro400, was launched in 2007.

Production of the Enviro300 ceased in 2015 with the introduction of a long-wheelbase Enviro200 MMC.

First generation (2001–2008)

First Midland Red 67658.jpg
First Midland Red first generation ADL Enviro300 in September 2005
Travel Surrey 8754 rear.JPG
Travel Surrey first generation TransBus Enviro300 rear in October 2008

Developed from the Alexander ALX300 body, the TransBus Enviro300 was launched in 2001 by TransBus International, becoming the first member of the Enviro range; [1] with the collapse of TransBus in 2004, successors Alexander Dennis took over production and rebranded the Enviro300 as the Alexander Dennis Enviro300. [2] [3] In 2005, a school bus version was launched. [4]

A common design was used primarily that the bus has a single-curvature windscreen with a peaked roof dome and a separately mounted destination sign. The bus was developed to compete with the European-built heavy-weight single-decker buses sold in the United Kingdom, the most notable being Volvo. Many full-size (12m or more) single-decker buses are primarily designed for use on the continent and to carry a large number of standing passengers which is commonplace on the continent, but the Enviro300 was designed solely for the UK market where large numbers of standing passengers are not often carried. TransBus therefore believed that operators could make significant fuel savings by operating light-weight buses and produced a vehicle which is claimed to be lighter than its continental rivals but offer more seating capacity.

The Enviro300 had not sold as well as the manufacturer had hoped, though sales were not helped by the collapse of TransBus International in 2004. The first seven Enviro300s were delivered to Truronian for use on Eden Project shuttle services in 2002. [5] First Midland Red were among the biggest customers for the original Enviro300, purchasing 25 new between 2003 and 2005. [6] A smaller number of original Enviro300s were also sold to the Stagecoach Group, Cardiff Bus and Bus Éireann.

The Enviro300 chassis was also able to be fitted with bodywork by other manufacturers, with Courtney Coaches purchasing East Lancs Esteem bodied examples in 2006. This was the first time the Enviro300 chassis was constructed with bodywork by another manufacturer. [7]

Second generation (2007–2015)

Stagecoach Swindon 22626.JPG
Stagecoach Swindon 22626 rear.JPG
Stagecoach West second generation Enviro300-bodied MAN 18.240 in October 2008

In late 2007 Alexander Dennis introduced a second generation version of Enviro300 which featured styling cues similar to the Enviro200 Dart and the Enviro400. It had a single-piece windscreen covering the destination display (no longer a peaked roof dome similar to the Marshall Capital and the MCV Stirling). In addition to being available as an integral bus, it was also available on MAN 18.240/18.250, Volvo B7RLE and Scania K230UB chassis. [8] [9] The second generation Enviro300 was far more successful sales wise than its predecessor, with Arriva, [10] [11] the FirstGroup and Stagecoach purchasing examples.

The Stagecoach Group standardised on the Enviro300 as its standard full-size single-decker from 2007 until the end of production in 2015, when it was replaced within the group by the full-size Enviro200 MMC. [12] The group first ordered 100 Enviro300 bodied MAN 18.240s in 2007, [13] with the first eight production Enviro300s entering service with Stagecoach in Perth to launch the Stagecoach Goldline bus service in October 2007. [14] Further orders boosted the total number of MAN-chassised Enviro300s operated by Stagecoach Group companies to over 350. Integrally-constructed Enviro300s were distributed across all UK bus operating subsidiaries of Stagecoach, with examples including large numbers delivered to Stagecoach North East for services in Stockton-on-Tees, [15] [16] Stagecoach East Scotland for services in Glenrothes, Kirkcaldy and Perth, [17] [18] and 18 built to revised Stagecoach Gold specification for Stagecoach Merseyside & South Lancashire. [19] [20]

In January 2011, Stagecoach placed an order for 50 Scania K230UBs with Enviro300 bodies. These were followed by further 28 examples between 2012 and 2013, [21] and 28 between 2014 and 2015, [22] including two built to Gold specification for Stagecoach Cumbria & North Lancashire's X4/X5 service. [23]

The FirstGroup were also another customer for the integral second generation Enviro300, albeit in comparatively smaller numbers to Stagecoach. Having ordered 142 integral Enviro300s in 2013, [24] 89 of these were delivered to First Glasgow, [25] [26] 41 were delivered to First Greater Manchester for services in Oldham and Bolton, [27] 23 were delivered to First Aberdeen, [28] and ten were delivered to First Scotland East for a cross-border express service to Carlisle. [29]

In mid-2008, Translink ordered 45 Enviro300 bodied Volvo B7RLEs for its Ulsterbus operation, these being the only Enviro300s to be bodied on this chassis. These were built to a rural specification featuring unique modifications such as narrower entrance doors, a separate wheelchair access door on the nearside, and 55 seatbelted seats arranged in a 2+3 layout. [30]

Alternative fuels

A fleet of ten Enviro300s on MAN 18.240 chassis, which were converted to run on biodiesel produced from tallow and used cooking oil, were delivered to Stagecoach West Scotland for use in Kilmarnock in 2010, replacing older single-deck buses also fuelled by biodiesel. [31]

In April 2013, Reading Buses took delivery of 20 natural gas-powered Enviro300SG buses based on the Scania K270UB chassis. [32] [33] These buses were jointly developed by Alexander Dennis and Scania, who had a demonstrator on loan to other operators from March 2013. [34] Stagecoach North East purchased 40 Enviro300SG bodied Scania K270UBs in 2014 for use on services in Sunderland. [35] [22]

One Enviro300SG was converted by Alexander Dennis to run on biofuel produced from human waste in 2014. Capable of a range of 300 kilometres (190 mi) at maximum capacity, the 'Bio-Bus' was initially loaned to the Bath Bus Company, requiring the installation of a temporary fuelling station at the Bristol Sewage Treatment Works in Avonmouth, before commencing on demonstration duties across the United Kingdom. [36]

A hybrid electric derivative of the integral Enviro300 named the Enviro350H, equipped with BAE Systems hybrid technology used in the Alexander Dennis Enviro400H, was launched by Alexander Dennis in 2010, initially available with Tata Hispano bodywork exclusively for the Continental Europe export market. [37]

2019 recall

On 10 May 2019, the UK Driver and Vehicle Standards Agency (DVSA) issued an instruction to all operators of both the Enviro200 and the Enviro300 to carry out additional safety checks of front and rear suspension components, following several safety concerns raised by the DVSA. A recall of Enviro200s and Enviro300s was announced by Alexander Dennis shortly after the announcement. [38]

Alexander Dennis issued a service kit to operators of affected Enviro300s. Suspension modifications that came with the kit included the fitment of a polyurethane ring to the front suspension's catcher bracket, restricting movement of the front axle if front springs failed in service, while a bolt migration catcher bracket was fitted for the rear suspension to prevent the suspension's anchor bolt from migrating from the joint in the event of failure of the rear suspension. [39]

Related Research Articles

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<span class="mw-page-title-main">Alexander ALX400</span> 2-axle double decker bus body

The Alexander ALX400 was a 2-axle double-decker bus body built by Walter Alexander Coachbuilders. It was one of the ALX-series bodywork, all of which featured the same designs on the front and rear panels that were originally designed for the new generation of mainly low-floor bus chassis produced since the late 1990s.

<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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<span class="mw-page-title-main">Alexander Dennis Enviro200</span> British single-deck midibus

The Alexander Dennis 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 revived sales for the product from 2006. It was supposed to be positioned in between a minibus and a rigid single-decker bus.

<span class="mw-page-title-main">Dennis Trident 2</span> 2-axle low-floor double-decker bus

The Dennis Trident 2 is a 2-axle low-floor double-decker bus chassis originally manufactured by Dennis, which was unveiled in 1997 and replaced the Dennis Arrow. It was built by TransBus after Dennis was incorporated into the group in 2001, then from 2004, it was built by Alexander Dennis following the collapse of TransBus.

<span class="mw-page-title-main">East Lancashire Coachbuilders</span> Bus bodywork manufacturer based in Blackburn, England

East Lancashire Coachbuilders Limited was a manufacturer of bus bodies and carriages founded in 1934 in Blackburn, Lancashire, England. The company went into administration for a short while in August 2007, before being bought by Darwen Group and performed a reverse takeover with Optare when its parent purchased the company in 2008 and its site and business was later closed in 2012.

<span class="mw-page-title-main">Southdown PSV</span>

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<span class="mw-page-title-main">Plaxton Elite</span> Step-entrance coach body on Volvo and Scania chassis

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<span class="mw-page-title-main">Northern Counties Palatine</span> Step-entrance double-decker bus body

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<span class="mw-page-title-main">Optare Esteem</span> Low-floor single-decker bus body

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<span class="mw-page-title-main">Alexander PS type</span> Step-entrance single-deck bus bodywork

The Alexander PS-type was a step-entrance single-deck bus body built by Walter Alexander Coachbuilders in Falkirk, Scotland and was produced from 1988 to the late 1990s on the Dennis Lance, Mercedes-Benz O405, Scania N113 and Volvo B10M chassis.

<span class="mw-page-title-main">Plaxton Pointer</span> Single-deck midibus body built on Dennis and Volvo chassis

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<span class="mw-page-title-main">Alexander Strider</span> Step-entrance full-size single-deck bus body

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<span class="mw-page-title-main">Volvo B5LH</span> Motor vehicle

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<span class="mw-page-title-main">Alexander Dennis Enviro200 MMC</span> Single-decker bus produced since 2014

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

The Alexander Dennis Enviro400 MMC is a low-floor double-decker bus produced by the British bus manufacturer Alexander Dennis since 2014, replacing the Alexander Dennis Enviro400. The Enviro400 MMC is produced at Alexander Dennis' Falkirk and Scarborough factories in the United Kingdom.

<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.

<span class="mw-page-title-main">Alexander Dennis Enviro200EV</span> Battery electric single-deck bus

The Alexander Dennis Enviro200EV is a battery electric single-deck bus produced by the British bus manufacturer Alexander Dennis in partnership with Chinese electric vehicle manufacturer BYD Auto since 2015. An electric variant of the diesel integral Alexander Dennis Enviro200 MMC, which had been launched that same year to replace the outgoing Enviro200 and Enviro300, the Enviro200EV utilises BYD's own 12 m chassis and drivetrain and has a range of up to 160 miles with a recharge time of 3.5 hours. A shorter 10.8 m variant was subsequently added to the range in 2016.

References

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