city_alexander 發表於 2017-12-13 19:30

clivetock 發表於 2017-12-13 20:53

原來當初設計時計劃使用全動力車8卡編組以達致1.3 m/s^2嘅加速度，並沒有提及D卡拖卡，唔知係乜嘢原因令到地鐵由增加一組B－C改為增加2卡D卡呢？

ArnoldC 發表於 2017-12-14 19:54

一個字：錢！當時預計，改為6M2T所慳返嘅製造成本，足以抵銷所增加嘅營運成本。

KMBAVC19 發表於 2017-12-15 11:23

ArnoldC 發表於 2017-12-14 19:54
一個字：錢！當時預計，改為6M2T所慳返嘅製造成本，足以抵銷所增加嘅營運成本。 ...

鬼係
事實係因為M車真係好食電
再加硬加2卡動力卡唔係唔得，不過分分鐘多幾列車一齊扯電就變電站頂唔順咁解

ArnoldC 發表於 2017-12-15 22:27

KMBAVC19 發表於 2017-12-15 11:23
鬼係
事實係因為M車真係好食電
再加硬加2卡動力卡唔係唔得，不過分分鐘多幾列車一齊扯電就變電站頂唔順咁 ...
記錯左添，原來係用電量輕微上升、性能輕微下降，但係採購成本、維修成本大幅下降。
Donald, W.R., Gretton, J. R. & Turner, T. D., 1989. Procurement of rolling stock on the Hong Kong Mass Transit Railway. Proc Instn Mech Engrs, Vol 203, pp. 65-70— The initial contracts were let for cars with all motored axles but this was changed in later orders to trains with six motor cars and two trailer cars, an arrangement which offset a negligible increase in energy consumption and small loss of performance with significantly lower purchase and maintenance costs.

bombardier 發表於 2017-12-20 01:31

當年曾經搭過8M0T的"solid train":D

Mueller 發表於 2017-12-20 05:21

bombardier 發表於 2017-12-20 01:31
當年曾經搭過8M0T的"solid train"

行車表現同6M2T有冇大分別?

S3BL470@98A 發表於 2017-12-27 21:39

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