The 92 stock was built with the Westrace signalling system from the start and was fully backward compatible with conventional signalling. Once the final switch over was completed the tripcocks were removed
I'm not too sure, there were 3, I think the present stock was one of the 3
The Wilipedia article suggests that the production run was based on the BREL (blue) train, that being the one favoured by the public - not necessarily the operators or maintenance teams' choice, be it noted. But looking at the photos, some features of the other two trains (both built by Metro Cammell) seem to have crept into the production series: note in particular the side windows of the green train.
It's all the same design they ordered 85 8 car for the central line and 5 4 car for the Waterloo and City. Only difference the Central version was built for ATO.
At the time Network South East as it was decided to order the same trains LUL was buying as it was cheaper than coming up with their own design. From introduction all 92 units had arm rests don't know why the Central lines were removed though.
Apart from minor details such as paint, the trains were the same. The NSE ones were tested on the Central Line (the Drain having neither the space nor the negative rail to allow them to be tested whilst the 1940 stock was still in situ). In theory I suppose a mixed formation was possible but I don't know if it ever happened.
Apart from minor details such as paint, the trains were the same. The NOSE ones were tested on the Central Line (the Drain having neither the space nor the negative rail to allow them to be tested whilst the 1940 stock was still in situ). In theory I suppose a mixed formation was possible but I don't know if it ever happened.
"The king sat upon his throne, waved his hand at the sea Time made a fool of him and everything he tried to be.........."
It states in the Transport Committee report of June 2003 that:
Are train doctors the rolling stock engineers that work in line control centres advising line controllers as to what faulty trains might be and was this practise only started after the events of Chancery Lane?
There are three grades in maintenance. Train Maintainer, Advanced Train Maintainer and Train Doctor/Engineer. Basically TM's do planned work, ATM's do the more involved work, and if the ATM's can't do it the train doctors have a look.