Deleted
Deleted Member
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Post by Deleted on Jan 27, 2006 7:10:39 GMT
Basically, Yes. It's cheaper to build 6 long cars than 8 short ones (bogies etc. etc.) But 6 longer cars have trouble fitting around those tight bends in those old imperial tunnels  |
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Post by CSLR on Jan 27, 2006 9:23:52 GMT
But 6 longer cars have trouble fitting around those tight bends in those old imperial tunnels This has led me to a terrific idea that follows on from the basic rule that you cannot fit a litre into a pint pot. We have finally found the solution to this problem. Where a tube tunnel was originally built to an imperial size, all of the cars that run through it should be built to imperial size as well (e.g. all measurements should be in feet and inches)! Of course, the timetable will have to be modified to ensure that 'imperial stock' (what a great name) terminates before it reaches a metric sized extension, but that is just a minor technical point that can be left to others to resolve. |
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Phil
In memoriam
RIP 23-Oct-2018
Posts: 9,473
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Post by Phil on Jan 27, 2006 12:16:14 GMT
Or just order the new stock from the makers/suppliers of the Tardis ;D ;D ;D ;D ;D ;D ;D
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Post by CSLR on Jan 27, 2006 12:35:14 GMT
Or just order the new stock from the makers/suppliers of the Tardis ;D ;D ;D ;D ;D ;D ;D That really would screw up operations, as trains would then be able to reach their destination at a time earlier than they had started their journey. Also, if T/Os could book-off duty before they booked-on, how much would they be paid? |
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Post by Dmitri on Jan 27, 2006 16:05:06 GMT
The A series of paper is based on the square root of 2, starting from the eminently logical area of 1 square metre for A0. Becuase it is based on a number that isn't a round number, the numbers of some of the smaller paper sizes appear fairly illogical - e.g. A4 is 210 × 297mm. Why A0 has dimensions of 841 × 1189mm I don't know though. A0 is a sheet of paper which is 1 square metre (1 000 000 square millimetres) in area and has an aspect ratio of 1/Sqrt(2). We have a system of two equations: W * H = 1 000 000 W / H = Sqrt(2) Solving this for W and H, we get 1189 mm and 841 mm. |
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Ben
fotopic... whats that?
Posts: 4,282 
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Post by Ben on Jan 27, 2006 17:19:28 GMT
What aspect ratio is the B series of paper based on?
Wouldn't operational flexability be sacraficied by 7 car trains if the units are only single ended?
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Post by CSLR on Jan 27, 2006 17:31:09 GMT
What aspect ratio is the B series of paper based on? E=mc2 |
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Post by garth on Jan 27, 2006 18:11:46 GMT
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prjb
Advisor
LU move customers from A to B, they used to do it via 'C'.
Posts: 1,840
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Post by prjb on Mar 25, 2006 21:55:43 GMT
i can tell you,as one of our ex dmts is on the 7 car project, Sorry for my late posting, I'm new too. circledriver s right about that ex dmt - It's me! |
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prjb
Advisor
LU move customers from A to B, they used to do it via 'C'.
Posts: 1,840
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Post by prjb on Mar 25, 2006 21:57:46 GMT
Oh, don't talk to me about Hammersmith. Relevant project team got full financial authority before consulting with the reps. The reps bounced the proposals because they weren't up to scratch. The project team had to come back to ask for a bigger budget which didn't go down well. It also delayed the programme. Asking for money once is better than a drip-drip of seeking more dosh. Yep, that was me too! Hammersmith was my last job before I left operations for upgrade projects. Fortunately, I just dealt with the reps and didn't get involved in the higher decision making. Honest! |
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