The 1972 mk 2 stock started out on the Bakerloo, but in the divorce from the Jubilee the latter got to keep them - only to give them back when it got the 83s!
Actually the 1972mk2 stock entered service on the northern line and was ultimately intended to be used on the Bakerloo line. Initially the plan was for it to be used on the jubilee line until the new extensions were built and a new larger fleet of purpose built automatic stock was built. This eventually happened if course but not quite as planned!
Actually the 1972mk2 stock entered service on the northern line and was ultimately intended to be used on the Bakerloo line.
So it did, although it was still very new when it went to the B'loo.
Why did it go to the Northern first? What did it replace, and what then replaced it? (It was presumably connected with the introduction of 1973 stock, and consequent transfer of 1959 stock from the Picc to the Northern: was there simply more life left in the Bakerloo's fleet of 1938 stock than in the Northern's?
As built the 72Mk2s had the wiring for the same ATO system as the Victoria Line as the initial section of the Fleet/Jubilee Line was intended to be ATO originally.There was a train of 72Mk2 at Northumberland Pk for a couple of months in the mid 70s for test running in ATO.
The 1972mk2 stock was built for stage one of the jubilee as stated but it was built 5 years early because the 1973 stock was some time away and to ensure met cammell had work on and wouldn't get wound up. The 1938 stock was having real troubles by the early 70s and being such a large fleet needed gradual replacement. The 1972 mk1 stock was an easy solution in the short term so the worst 210 cars of 38 stock could go. In reality much of the 1949 stock was scrapped by the mid 70s along with the '58 trailers which were now 45 years old! The mk2 stock was able to allow another 33 trains of 38 stock to go. Ultimately the 38ts was replaced by 4 different tube stocks over a time period of 17 years! The 56/59 stock transfer to the northern allowed the mk2 stock to get onto the Bakerloo. Some returned to the northern in the 80s when 1983 stock started on the jubilee. The Bakerloo then had a mix of 1938/59 stock - interesting times indeed!
The reason 72mMk2s run wrong way round on the Bakerloo(4 car to the south)was due to the poor state of the brakes on the shunting control panel end(ex 38/49TS)and the powers that be didn't want someone approaching a dead end and have a brake failure.This problem was lost on refurb when an EP brake was fitted to the panel controls but they couldn't be bothered to go through the rigmarole of turning all the fleet.
Post by norbitonflyer on Apr 11, 2014 15:56:03 GMT
I'm sure I read somewhere that the reason bakerloo trains are back to front compared to other lines goes back to when trains were split at Wtaford Junction to allow short formations in the off peak, the 3car set being left behind at Watford Jct or driven to Croxley depot. This originally required them to be driven 2 miles using the shunt controls in the UNDM, until DMs could be sourced from elsewhere to allow the 3car sets to have a cab at both ends.