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siding
Chief Train Controller
Joined: Apr 13, 2004
Last Visited: Nov 23, 2008
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Posted: Tue Aug 05, 2008 6:57 pm
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261 and 262 on a test run passed Kuranda Diesel 1771D at Mayne yesterday 1155 while 1079 steamed a few lines over before picking up Premier Anna at Central.
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3foot6
Minister for Railways
Joined: Dec 22, 2004
Last Visited: Nov 22, 2008
Location: Brisbane, QLD
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Posted: Sat Aug 09, 2008 9:35 am
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SMU 261/262 entered revenue service with QR CityTrain on August 8, 2008.
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SM247
Deputy Commissioner
Joined: May 04, 2005
Last Visited: Nov 21, 2008
Location: Carrara, Gold Coast, Queensland
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Posted: Thu Aug 14, 2008 11:36 am
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| 3foot6 wrote: | | SMU 261/262 entered revenue service with QR CityTrain on August 8, 2008. |
These 2 sets have been doing Gold Coast workings in the last week.
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ButFli
Locomotive Fireman
Joined: Mar 19, 2008
Last Visited: Nov 22, 2008
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Posted: Thu Aug 14, 2008 12:08 pm
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Why is it that the Gold Coast line always gets the best trains?
One answer is that it is an inter-urban line and requires the facilities found on IMUs. Since all the IMU's are relatively new it means Gold Coast line gets mostly new trains. Fair enough.
I don't understand why these brand new SMU's are sent straight to the Gold Coast line. If a new SMU is adequate without a toilet or luggage racks surely an EMU could be put on the Gold Coast line and the new trains spread around a bit? Are Gold Coast people special?
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birdman
Locomotive Driver
Joined: Jun 16, 2006
Last Visited: Nov 20, 2008
Location: Caboolture
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Posted: Thu Aug 14, 2008 12:49 pm
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Give me one of the older IMU's anyday. they are a lot more comfortable.
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MelbourneCity
Chief Commissioner
Joined: Jan 22, 2003
Last Visited: Nov 22, 2008
Location: Melbourne
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Posted: Thu Aug 14, 2008 2:27 pm
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I guess in some respects the Gold Coast line is Citytrain's flagship route, and QR's only real modern "intercity" service.
Yes - obviously Traveltrain runs services between different cities, but they differ to modern notions of "intercity" in that they are not frequent and cover large distances, not really designed for commuting.
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petey3801
Chief Commissioner
Joined: Aug 02, 2004
Last Visited: Nov 20, 2008
Location: Sitting next to colinw and beastjim waiting for a train to Byron Bay
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ar31
Chief Commissioner
Joined: Jan 25, 2004
Last Visited: Nov 16, 2008
Location: Elimbah, Queensland
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Posted: Thu Aug 14, 2008 5:28 pm
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| ButFli wrote: | Why is it that the Gold Coast line always gets the best trains?
One answer is that it is an inter-urban line and requires the facilities found on IMUs. Since all the IMU's are relatively new it means Gold Coast line gets mostly new trains. Fair enough.
I don't understand why these brand new SMU's are sent straight to the Gold Coast line. If a new SMU is adequate without a toilet or luggage racks surely an EMU could be put on the Gold Coast line and the new trains spread around a bit? Are Gold Coast people special? |
Older SMUs can be regularly found on the Gold Coast Line as well. At least one set would be on Airport-Gold Coast duties whilst the rest are mainly IMUs.
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bunza
Assistant Commissioner
Joined: Aug 26, 2005
Last Visited: Nov 22, 2008
Location: Gold Coast
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Posted: Fri Aug 15, 2008 12:03 am
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| ButFli wrote: | | Are Gold Coast people special? |
Of course we are! When did you ever doubt it?
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ButFli
Locomotive Fireman
Joined: Mar 19, 2008
Last Visited: Nov 22, 2008
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Posted: Fri Aug 15, 2008 2:44 pm
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A few 260 class sightings from last night and this morning to report.
The 261/262 bro's were spotted ariving on Platform 9 at Roma Street at about 6:24PM yesterday on the Exhibition run. Spotted again terminating what I assume was an Exhibition run on Platform 4 at Brunswick Street at about 10:29PM.
SMU262 all by himself as a 3-car arrived on Platform 6 at Roma Street at about 8:20AM this morning displaying Bowen Hills on the desto. I assume this was 1M11 from Cleveland.
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DABEAR
Junior Train Controller
Joined: Jun 12, 2004
Last Visited: Nov 18, 2008
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Posted: Fri Aug 15, 2008 5:46 pm
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| ButFli wrote: | | I don't understand why these brand new SMU's are sent straight to the Gold Coast line. If a new SMU is adequate without a toilet or luggage racks surely an EMU could be put on the Gold Coast line and the new trains spread around a bit? Are Gold Coast people special? |
The G/C line is timetabled to run at 140km/h. Put in a EMU which can only go 100km/h and it starts to run very late......
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rwj_95
Train Controller
Joined: Jan 12, 2008
Last Visited: Nov 23, 2008
Location: At the computer
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Posted: Fri Aug 15, 2008 5:51 pm
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What is the top speed of the new SMU's?
The trouble with trouble is that it starts with fun...  |
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3foot6
Minister for Railways
Joined: Dec 22, 2004
Last Visited: Nov 22, 2008
Location: Brisbane, QLD
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Posted: Fri Aug 15, 2008 8:11 pm
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| rwj_95 wrote: | | What is the top speed of the new SMU's? |
130km/h.
They have better acceleration than an 100/120 IMU to offset the lesser top speed.
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bunza
Assistant Commissioner
Joined: Aug 26, 2005
Last Visited: Nov 22, 2008
Location: Gold Coast
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Posted: Sat Aug 16, 2008 6:27 pm
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Kinda right... it is on paper slower than the IMU100's still (though only just) at 8km station spacing:
IMU100
140km/h cruise speed, 0.68m/s/s acceleration, -1.1m/s/s deceleration
4 minutes 12 seconds
IMU160/SMU260
130km/h cruise speed, 0.8m/s/s acceleration, -1.12m/s/s deceleration
4 minutes 20 seconds
and for the record EMU
100km/h cruise speed, 0.775m/s/s acceleration, -1.1m/s/s deceleration
5 minutes 19 seconds
Though to be honest, even if the 160/260 had the acceleration characteristics of the IMU100's with the lower top speed, the trip would only have taken 5 seconds extra (4 minutes 25 seconds).
Note that these figures are taken from specifications found on the net and that in real life acceleration is rarely perfectly uniform.
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3foot6
Minister for Railways
Joined: Dec 22, 2004
Last Visited: Nov 22, 2008
Location: Brisbane, QLD
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Posted: Sat Aug 16, 2008 9:40 pm
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In practice, I have been told that the best type of train to drive down the Gold Coast is the 120 IMU.
It doesn't make too much of a difference, but the IMU 160/SMU 260 have an acceleration rate of 0.83m/s/s. An SMU 200 has an acceleration rate of 0.8m/s/s.
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