猛獅 NL262 / NL263 / NL273 MAN NL262 / NL263 /NL273
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愉景灣交通服務有限公司車隊在早年時間，全是由日本產品組成，當中包括了小型巴士及大型單層巴士。一九九五年為配合區內不斷發展所來的人口增長，有關方面購入兩架載客量接近百人的平治O405大型單層巴士，加強接駁碼頭及住宅區的運載能力，同時揭開了歐製巴士服務愉景灣的之序幕。愉景灣往後購買的新車除了部份小型巴士來自日本廠家外，其餘都是來自歐洲的中型及大型單層巴士，除了平治繼續得到愉景灣垂青外，同樣來自德國的猛獅以及英國的丹尼士，亦成功奪得愉景灣的訂單。為配合愉景灣隧道於二零零零年五月二十七日通車，有關方面訂購新車作新增連接區外路線之用，當中服務接駁東涌巿中心路線的重任，便落在五架配原廠車身的猛獅NL262大型低地台單層巴士上，並趕及隧道通車前領牌投入服務。
城巴在愉景灣購買猛獅NL262之前早已營運六十輛同型號巴士，而隨後增購的二十架NL262新車亦與愉景灣新車於相若時間投入服務。愉景灣交通所訂購的五架猛獅NL262，在車身配置以及機械配搭上，都與城巴同款新車存在一些差異。首先由於預計新車所行走的路線，營運模式有別於巿區流水路線，故此愉景灣替NL262選配了單門設計車身，同時間能夠增加座位數量，配合相對長途車程乘客需要。另外，愉景灣在這批NL262車廂內裝設了行李架，方便乘客擺放雜物。至於機械配搭方面，引擎理所當然採用猛獅自家產品，傳動系統亦由城巴採用的福伊特全自動波箱換成ZF出品，整個動力配搭同時驅動德國超卓空調系統，為乘客提供舒適的乘車環境。
愉景灣區內居民的通勤模式自從愉景灣隧道通車後出現轉變，對外交通由以往只能倚賴渡輪，變成今天可以乘坐巴士到東涌轉乘地鐵或巴士往返巿區，對區外巴士路線的需求自然亦有增無減。愉景灣交通服務有限公司為配合營運需要，於是再向猛獅增購大型單層低地台巴士，兩架配葡萄牙Caetano車身的猛獅NL263亦隨於二零零一年投入服務，愉景灣亦成為了本港第二間使用同型號巴士的營運商。猛獅NL263作為NL262的接班人，於一九九八年十月奪得歐洲最佳巴士大獎，整個機械配搭跟NL262相近，配置了猛獅引擎及ZF全自動波箱，以應付行走公路路段需要，而空調系統則是開利超卓提供。承接NL262車身設計，十二米長的Caetano車身同樣只安排一道車門，車廂內除了設有行李架外，同時是愉景灣車隊內首款提供輪椅停泊位置的車款，以及符合歐盟三型排放標準的巴士。在一年之後，愉景灣交通服務有限公司因應區內發展需要，再次向猛獅訂購九架新車，其中五架為Caetano車身的NL263，其中兩架新車(HKR182及183)除了採用雙門版車身，以配合行走當時新增的區內路線需要，全自動波箱亦採用了福伊特的產品。
為配合香港迪士尼樂園開幕，地鐵於二零零五年八月增設迪士尼線連接樂園及同年六月投入服務的欣澳站，同時東涌線列車亦加停欣澳站，愉景灣交通服務有限公司以此作為機會，增辦連接愉景灣及欣澳站的DB03R。為配合擴充服務網絡需要，愉景灣需要增購巴士以作配合，適逄城巴當時出售車隊中過剩的猛獅NL262，於是促成其中五架加入愉景灣交通服務有限公司作擴充車隊之用。跟早年愉景灣自行購入的同型號新車比較，來自城巴的NL262採用了福伊特的傳動系統產品，並且採用雙門版本車身，並且於車內設有輪椅停泊區。在這批二手巴士當中，前城巴1571(JM1951)加入愉景灣後獲得HKR115的車隊編號，這個車隊編號原先屬於愉景灣自家購入的NL262新車(JL6489)，但不幸地於二零零五年行走DB01R時，於東涌翔東路遇上交通意外，事後因損毀嚴重未能修復而提早退役。在購入五架二手的猛獅NL262後，愉景灣有感對外陸路交通需求只會有增無減，於是在二零零七年再向猛獅訂購五輛配用馬來西亞順豐車身的NL263新車，同時成為本港最後一批的猛獅的猛獅NL263。愉景灣這批最後的NL263新車在外觀上，跟往返皇崗口岸的同款車身巴士如出一轍，至於機械配搭方面則與HKR182及183如出一轍，並足以驅動由日本電裝製造的空調系統。
為配合愉景灣的全新企業形象，全數猛獅NL262及263的綠白色為主調的車隊色彩，自二零零八年開始逐一被紫白色的企業色彩所取代，同一時間以HKR為首的車隊編號亦改為以DBAY作為開首。
為接替兩架於一九九七年購入的平治小巴，愉景灣交通服務有限公司於二零零九年初購入兩架大型單層猛獅低地台巴士，型號為NL263的後繼產品NL273。兩部NL273一方面除了能夠填補這兩架小巴退役後出現的空缺外，另一方面可以提升車隊整體運載能力。猛獅NL273早於二零零八年出現於新大嶼山巴士車隊中，愉景灣這次引進的NL273所配用的車身，雖然跟嶼巴同款巴士甚至早年最後一批NL263一樣採用馬來西亞順豐的出品，但車頭採用了全新的設計。而在廢氣排放方面，猛獅NL273裝配有符合歐盟四型排放標準的猛獅引擎，全自動波箱則繼續由福伊特提供，至於空調系統則同樣由日本電裝提供，整體配置與最後一批NL263大同小異。及後因應愉景北發展所帶來的額外需求，愉景灣交通服務有限公司再次向猛獅招手，增購三架猛獅NL273新車並於同年年底投入服務。
除了上述的HKR115因交通意外提早退役，DBAY107(JL8594)亦率先於二零一一年退下火線，其位置由一架配順豐車身的猛獅NL323取代。而在二零一四年愉景灣向亞歷山大丹尼士購買Enviro200時，其中一架十一點三米版本新車用件取代DBAY135(JL6971)，並沿用了原車隊編號。至於二零一六年一月，除了一架愉景灣一手購入的NL262及四架來自城巴的同款巴士退役外，DBAY188(KS3963)亦在是次退役名單上，成為車隊中首部退役的NL263，而最後兩架NL262 包括DBAY131(JL7593)及DBAY35(JM1972)，則在愉景灣區內服役至二零一七年四月才退下火線。不論配Caetano或順豐車身的NL263，最終都於二零一八年九月開始逐一被配用順豐Lion's City Hybrid車身的NL323所取代，最後一架退役的NL263為DBAY198(NA1909)，並且於二零一八年十一月退役後，被改裝成愉景灣隧道意外事故搶救訓練車。
愉景灣交通再於二零二一年向猛獅購入四架歐六版本NL323新車，主要作為取代隊中的NL273，這批NL323新車自二零二一年十月起陸續投入服務，亦代表採用原編號的NL273退出愉景灣，首架被取代的是DBAY195(NY7716)。截至二零二二年八月中為止，愉景灣車隊只餘下DBAY72(NW6239)及DBAY197(PA3246)兩架猛獅NL273服務居民。
Before the introduction of the pair of Mercedes Benz O405, the entire fleet of DBTSL was composed of minibuses and full-sized single decker from Japan. As the continuous growth of demand along with the development of Discovery Bay, DBTSL started to looking for buses with higher capacity and as mentioned above, the O405 was chosen and the chapter of using European bus model was started. To cope with both fleet and networks expansion, more buses were purchased and most of them were from Mercedes Benz as well as MAN and Dennis. A batch of MAN NL262 full-sized single decker was purchased for the service linking Tung Chung Town Centre after the opening of the Discovery Bay Tunnel on 27 May 2000.
Almost at the same time, CTB placed a repeat order of MAN NL262 as a result of the satisfactory performance and there were some differences between two batches of NL262. Firstly, ZF transmission was chosen on DBTSL samples for the use on highways. Since there was only limited stops for the external service, single door version bodywork was chosen and hence, more seats offered as well as equipped with racking for passengers personal belongings. A comfortable journey was made as compartment was air conditioned by Sutrak air conditioning unit driven by the MAN engine.
Followed the opening of the tunnel, external connections between the community become mainly relied on road instead of the ferry service and there was a need for DBTSL to acquire more full-sized single decker satisfied the demand. A pair of Caetano single door bodied MAN NL263, the first Euro 3 bus in Discovery Bay, was introduced to Discovery Bay in 2001 which was the second operator of the type in Hong Kong. It should be mentioned that MAN NL263 not only the successor of NL262 but also the Bus of the Year 1999 in Oct., 1998. NL263 shared a similar design with NL262 and a Euro 3 emission standard MAN engine was fitted with a ZF fully automatic gearbox. As a standard for the DBTSL fleet, luggage racks was fitted and they were the first in the fleet with wheelchair parking bay provided. Further purchasing order for Caetano bodied MAN NL263 was made in the following year and 2 of the 5 new buses (HKR182 and 183) acquired featured with a dual-door bodywork and Voith fully automatic transmission for the use on the new internal service introduced.
Sunny Bay Station and The Disneyland Resort Line was opened in Jun. and Aug., 2005 respectively to cope with the opening of the HK Disneyland. DBTSL launched a new service DB03R to connect the Sunny Bay Station and extra buses need for the networks expansion. At that time City Bus was selling its redundant NL262s in its fleet and 5 of them was purchased by DBTSL. Compared to the NL262 purchased by DBTSL, the second-hand NL262 was fitted with dual-door bodyworks and parking bay for wheelchair. Moreover, Voith transmission was fitted when new in contrast to the ZF seen on the previous batch of NL262 in the fleet. One thing should be mentioned that JM1951, former 1571 in City Bus fleet was classed as HKR115 in DBTSL fleet, a fleet number originally belonged to another NL262 (JL4689). JL4689 was new in 2001 but withdrawn prematurely in 2005 after a serious accident in Tung Chung when serving DB01R. Another batch of Gemilang bodied MAN NL263 was purchased in 2007 to meet the growing demand of external services, the mechanical specification was same as HKR182 and 183 and Nippon-Denso air-conditioning was chosen. Besides DBTSL, only NHKB operated the Gemilang bodied NL263 and the batch acquired by the former was the last of the type in Hong Kong.
A brand new corporate image of Discovery Bay was launched in 2008 and the original green and white livery for the DBTSL fleet including MAN NL262 and NL263 was changed into the new purple and white livery with the fleet suffix changed to DBAY as well.
The successor of NL263, the NL273 was first introduced by NLB in early 2008 and followed by Discovery Bay a year later, they were as a replacement of the Mercedes Benz O814 (DBAY71 and 72) and strengthen the capacity of the DBTSL fleet. A facelift version of Gemilang bodywork was chosen and all the DBSTL NL273 was powered by a MAN engine that complied with Euro 4 emission standard and a Voith fully automatic gearbox. In addition, Nippon-Denso air conditioning unit was chosen as seen on the last batch of the NL263. An additional order for 3 Gemilang bodied NL273 was made and delivered in the end of 2008 to cope with the development of the Discovery Bay North.
The first NL262 to be withdrawn was HKR115 as mentioned above and DBAY107(JL8594) was replaced by a NL323 in 2011. When the Alexander Dennis Enviro200 entered service in 2004, the sole 11.3m sample was as a replacement of DBAY135(JL6971). All but one of the second-hand MAN NL262 together with a single door NL262 were retired in Jan., 2016 and DBAY131(JL7593) and DBAY35(JM1972) were the last two NL262 serving the community which finally reached their end of service life in Apr., 2017. In Jan., 2016, DBAY188(KS3963) become the first NL263 withdrawn from the fleet and all of them was finally replaced by the MAN NL323 with the Lion's City Hybrid bodywork supplied from Gemilang since Sep., 2018 and the last NL263 to be retired was DBAY198(NA1909) and it was converted as rescue training bus of Discovery Bay Tunnel after it withdrawal in Nov., 2018.
With the commissioned of the Euro 6 version NL323, the MAN NL273 finally withdrawn from the fleet since Oct., 2021 and DBAY195(NY7716) was the first to be replaced and only two NL273 (DBAY72 and 197) survived as in Aug., 2022.
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