Optare Solo

Last updated

Switch Solo
Switch Solo SR
Bridgwater Broadway - Southern National 611 (KX15BLF) (cropped).JPG
Somerset Passenger Solutions Optare Solo SR
in Bridgwater in August 2017
Overview
Manufacturer Optare/Switch Mobility
Production1998–2012 (Solo)
2007–present (Solo SR)
Body and chassis
Class Minibus
Midibus
Body style Single-decker bus
Doors1 door or 2 doors
Floor type Low entry
Powertrain
Engine Cummins B series/ISB/ISBe
MAN
Mercedes-Benz
Capacity23–37 seated
Transmission Allison
Siemens (hybrid electric)
Enova Systems (fully electric)
Magtec (fully electric)
Voith DIWA (SR version only)
Dimensions
Length7.10–10.20 m (23 ft 4 in – 33 ft 6 in)
Width2.33–2.5 m (7 ft 8 in – 8 ft 2 in)
Height2.73 m (8 ft 11 in)

The Switch Solo (formerly sold as the Optare Solo) is a low-floor minibus/midibus with one or two doors manufactured by Switch Mobility in the United Kingdom since 1998. The Solo name is a play on its low-floor status, the manufacturer marketing its vehicle as having an entrance that is "so low" from the floor, namely 200 mm (8 in) with kneeling suspension. In January 2012 Optare announced the end of production for the original Solo design with a modified Solo SR taking over.

Contents

The original innovative design, featuring a front axle ahead of the entrance door, gained a Millennium product award, along with a Queen's Award for Enterprise, in 2000. [1]

Construction

Optare Solo M880 MX09AOO -4- CHESTER BS.JPG
Rear of a Townlynx Solo M880 in Chester in April 2009
Arriva buses 2850 and 2840 Optare Solos YJ58 CBU and YJ08 XBW in Darlington 5 May 2009.JPG
Rear of an Arriva North East Solo M950 in Darlington in May 2009. Note the difference in tail lights used on both rears.

The Solo is an integral midibus (as opposed to a separate chassis and body) built in a modular design, with steel frame and GRP panels. Detailed analysis and computer modelling of the design and any impacts of stresses it would see in service were undertaken by finite element analysis firm Analysis by Firth. [2] It is powered by a Mercedes-Benz OM904LA engine, which produces 122 bhp (91 kW) or 147 bhp (110 kW) according to specification, and it is typically mated to an Allison 2000 automatic gearbox. [3] Options of a Cummins ISBe 6-cylinder 185 bhp (138 kW) engine or a MAN engine later became available. [4] There was also the option of a 4-speed Allison AT545 gearbox. In 2005 a hybrid Solo was constructed, using a small diesel unit and an Eneco (now known as Traction Technology) battery propulsion unit.

The Switch Solo is available in various lengths: 7.8 m (25 ft 7 in), 8.5 m (27 ft 11 in), 9.2 m (30 ft 2 in) and 9.9 m (32 ft 6 in) - all 2.5 m (8 ft 2 in) wide. [3] The chassis type code of the Solo denotes the length – M780 corresponds to 7.8 m, M850 to 8.5 m, and so forth. However, the Cummins-powered Solos required extra rear bodywork in order to accommodate the larger engine, which increased the overall length by 0.3 m (1 ft). This is reflected in the chassis code, so a Cummins-powered Solo was coded M810, M880, M950 or M1020.

Along with the launch of the 9.9 m (32 ft 6 in) model, the Solo was also first offered with LED-type rear lights, as opposed to the standard rectangular clusters. Seating capacities range from 25 for an M780, 29 for an M850, 33 for M920 and 37 for an M990.

Original variants

Slimline

Stagecoach South West Solo Slimline in Exeter in July 2006 Stagecoach Optare Solo Exeter.jpg
Stagecoach South West Solo Slimline in Exeter in July 2006

A narrow-bodied version named the "Slimline" was launched in 2004 with the first examples entering service in August. It is 2.33 m (7 ft 8 in) wide, and identifiable by small rear wheel wheelarch extensions. Available across all lengths except the M990, the Slimline is identified by having an SL-suffix in the chassis code, e.g. M780SL for a 7.8 m (25 ft 7 in) long version. The Optare Solo Slimline is a 25-seated low-floor bus to replace the Optare MetroRider.

The compact size of an M780SL, with its seating capacity of 25, has made it a popular choice for replacing earlier-generation minibuses, such as the MCW Metrorider, and other van-based buses.

SE

First South West Solo SE at Penzance station in June 2015 Penzance Bus Station - First 53503 (YJ06YSK) leaving for Mousehole.JPG
First South West Solo SE at Penzance station in June 2015

In June 2006, Optare announced the arrival of another Solo model – the Solo SE. At just 7.1 m (23 ft 4 in) in length, it is the shortest Solo offered, and is capable of seating 23. It also uses a single-piece entrance door as an option. This is a variant of the Slimline – hence it is 2.33 m (7 ft 8 in) wide, but noticeably the rear track has been reduced compared to previous Slimline models, eliminating the need for wheelarch extensions on the rear of the bus. [5] Optare also plans to produce a 7.8 m (25 ft 7 in) long version of the SE.[ needs update ]

The first SE built, the former Optare demonstrator, entered service with Regal Busways, of Essex, in September 2006. The company has since acquired a further four examples.

EV

In March 2009, Optare launched the all-electric version of the Solo, the Solo EV. [6] The vehicle's top speed is limited to 90 km/h (56 mph). Since the summer of 2013, the vehicle uses a high-efficiency MAGTEC P180 Permanent Magnet Motor-Gearbox rated at 150 kW and powered by two banks of Valence lithium-ion phosphate batteries. The two packs work in parallel and provide 307 V with a total capacity of 92 kWh.

Solo+

In November 2008 the 'new' Optare unveiled the Solo+ – a completely restyled variant to celebrate ten years of the Solo as a new low-entry bus and was launched at the Euro Bus Expo 2008. It shared the same styling with the Rapta, which was launched at the same show. It sees the return of the flat side windows and roof as well as a steeper front end with an integral destination box. Proposed options include a full electric drive. [6]

However, the plan of producing the Solo+ was dropped afterwards. [7] The new product met with a poor market response and never made it beyond the prototype stage. [8]

Solo SR

Au Morandarte Flickr Courtney Buses 'Lattel (YJ14 BGY) on Route 124, Wokingham (14777221896).jpg
Courtney Buses Solo SR in Wokingham in July 2014
Arriva Kent & Sussex 1501 rear.JPG
Arriva Kent & Sussex Solo SR rear in Tunbridge Wells in April 2009

In October 2007, Optare unveiled the Solo SR at the Coach & Bus Show. It is a completely-restyled version of the Solo drawing styling features from the Versa, such as the curved side windows and sweeping roof (with the destination screen and air conditioning unit underneath). Some features of the Solo such as the curved front windscreen and the unusual chassis layout, with the front wheels ahead of the doorway, were retained. Another new unusual feature to the Solo SR is the lack of a destination box on the standard model. However, Optare offers this as an option to individual customer specification. [9]

In January 2012, Optare announced that the facelifted Solo SR would replace the standard Solo for both UK and export markets, with the standard design being withdrawn from sale. [10]

The Solo SR was then available in 7.1 m, 7.8 m, 8.9 m and 9.6 m variants, all available in the Slimline (2.35 m wide) version. 8.9 m and 9.6 m models are available in the wider 2.5 m body width. All 2012 Solo SRs feature curved side glazing and high specification interiors allowing up to 37 seats in the longest derivative.

Some of the bodywork components had been redesigned to take advantage of the benefits achieved on the Tempo SR design, which reduced both weight and cost and further improved fuel economy.

After having been stopped following Switch Mobility's repositioning towards manufacturing zero-emissions vehicles, production of conventional diesel Solo SRs was restarted in October 2023 when the Stagecoach Group announced the purchase of 70 buses, 60 of them being Euro IV diesel Solo SRs, to replace its older buses within the fleet. These are due to be in public service by early 2024. [11] [12]

Hybrid

The diesel-electric hybrid single-decker bus had room for 53 passengers; its configuration can be changed to provide seating for up to 34 passengers plus one wheelchair with additional standing room. Its peak power demands are met by batteries that are recharged on-board by the diesel generator.[ citation needed ]

EV

A battery electric variant of the Solo SR first debuted in 2012. Equipped with a Enova Systems P120 electric drivetrain as well as a water-cooled 15.2 kW on-board charger capable of reaching full capacity in six hours, the first-generation electric Solo SR was fitted with a 100 kwh battery pack, giving a maximum range of 90 miles (140 km). [13]

First-generation electric Solo SRs were commonly distributed across rural towns in Scotland with funding from the Scottish Green Bus Fund, [14] [15] while a fleet of six electric Solo SRs delivered to Stagecoach Highlands in 2015 for services in Inverness would receive battery pack upgrades that saw their range increased to a total 130 miles (210 km). [16]

Under Switch Mobility, the first six "next-generation" Solo SRs, with a maximum battery capacity of 135 kWh, were first delivered to Ulsterbus for use in Coleraine, with two of the six being allocated for Giant's Causeway shuttle services. [17]

Operators

United Kingdom

CT Plus Solo M960 in July 2014 Os25 (15060395639).jpg
CT Plus Solo M960 in July 2014

The first 32 production Optare Solos entered service in Poole in 1998 with Wilts & Dorset, [8] with the operator eventually taking delivery of 85 Solos to replace its fleet of Optare MetroRiders. [18] Arriva, FirstGroup, Go-Ahead Group, Stagecoach Group, [19] Wellglade Group, Translink in Northern Ireland, [20] [21] and Travel West Midlands made subsequent orders, [18] with all having operated large fleets. Solos have been operated by Transport for London operators Arriva London, Quality Line, Metrobus and Travel London. A fleet of 33 Solo SRs are also operated by LibertyBus in Jersey. [22]

Malta

In 2011, Arriva Malta purchased ten Optare Solo Hybrids for some of its routes in Malta and Gozo. These were passed on to Malta Public Transport in early 2014 after Arriva pulled out from Maltese bus operations, [23] but their use declined and, after summer 2015, they sporadically appeared in summer 2016 and summer 2017 before being withdrawn.

Between 2014 and 2015, Malta Public Transport leased 23 Optare Solo SRs from United Kingdom lessor Dawsonsrentals as temporary cover while a fleet of new Otokar buses were being manufactured. [24] These buses were eventually returned to the United Kingdom off lease in September 2015.

Republic of Ireland

The Solo Slimline saw frequent use on local bus services from Bray, County Wicklow operated by Finnegan Bray, with further examples operated throughout the rest of Ireland by Bus Éireann.

Europe

Netherlands operator Syntus purchased 25 Solos in 2010. [25] [8] In 2015, Solo EVs were delivered to Karlstad in Sweden. [26] In Hungary, Kapos Volán bought one, which is operating in Siófok.

Asia

Optare Solo SR public light bus in Hong Kong VL2848 New Territories 808 19-11-2018.jpg
Optare Solo SR public light bus in Hong Kong

In Hong Kong, AMS Public Transport (Chinese: 進智公交  [ zh ]]) and Koon Wing Motor Limited (Chinese: 冠榮車行  [ zh ]) respectively bought Optare Solo SRs in 2018 for trials on public light bus services, becoming the first low-floor public light buses operated in Hong Kong. [27]

North America

Miami-Dade County North American Bus Industries 30-LFN (2 doors) in May 2013 Miami 30LFN Curb Front.jpg
Miami-Dade County North American Bus Industries 30-LFN (2 doors) in May 2013

In the United States, a left hand drive version of the Solo was sold from 2003 to 2005 by North American Bus Industries (which at the time owned Optare) as the 30-LFN. Major purchasers were American Eagle Airlines and Miami-Dade Transit. [8] NABI's sale of Optare coupled with poor sales led to its discontinuation from the US bus market.

Middle East

In 2010, four Solos were purchased by Israeli operator Dan Bus Company. [28] [8]

A fleet of 94 air-conditioned Solo SRs were also purchased by the RTA in Dubai in 2018. [29]

South Africa

In 2012, Optare began delivering the first of 190 Solo SRs for Cape Town's MyCiTi bus rapid transit system. These were supplied as knock-down kits and assembled locally, entering service in the city from March 2013. [30] [31] [32]

Australia

In New Zealand, Reesby Buses imported nine Solo M880s to operate in Rotorua. [33] [8]

In Australia, Optare Solos have been purchased by SkyBus, Transdev Melbourne and Ventura Bus Lines in Melbourne and the Donric Group for school transport in Victoria, [34] and Bus Queensland for services in Toowoomba and Hamilton Island. [35]

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References

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