This page was last modified on 31 July 2006.
A second batch of 1972 tube stock was ordered, following on from the 1972 MkI tube stock, to provide trains for the then-unopened Fleet (Jubilee) Line; however, these 33 trains worked in various sections on several lines of the system up until 1989, rather than confining itself to one route — a case of musical chairs as the lines attempted to get rid of 45-year-old trains. Prior to the Jubilee Line’s opening in 1979, the trains were used at first on the Northern Line, allowing the scrapping of the already-ancient 1938 stock; then they worked the Bakerloo from 1977 in preparation for the Stanmore Branch being handed over to the Jubilee Line. This was made possible by the 1959 stock being surplus to requirements on the Piccadilly Line, which had just received a whole fleet of new 1973 stock trains.
After the first batch of Jubilee Line trains (1983 tube stock) was delivered, half the 1972 MkIIs that had become allocated there were sent back to the Northern, displacing 1959 stock onto the Bakerloo, which itself allowed the withdrawal of the remainder of the 1938 tube stock in November 1985. Next, the 1972 MkII stock on the Northern was converted to One Person Operation (OPO) and sent to the Bakerloo, allowing some of the 1959 stock there to come back to the Northern. Finally, on receipt of its second batch of 1983 stock, the Jubilee passed the remaining 1972 MkIIs over to the Bakerloo in 1989. This last sequence of events wound up with 1972 MkII trains operating exclusively on the Bakerloo, only 1983 stock on the Jubilee, and all 1959 stock back on the Northern. During the hiatus caused by the 1972 MkII fleet OPO conversion, cover for the absent trains was provided by five trains of formerly-withdrawn 1938 stock, which were pressed back into service on the Northern for a “final fling”.
1972 MkII stock trains are formed in the same way as the MkIs, having a double-ended 4-car and a single-ended 3-car unit coupled together. (Unit 3299 is an exception to this.) From the time that the 1956 experimental tube stock was delivered, new Underground trains were Aluminium-bodied and it had been decided not to paint them; however, this stock’s doors were red from the outset, helping to distinguish it from its 1967 and 1972 MkI cousins. The fleet has undergone refurbishment in recent years, which included painting in LUL corporate livery, improved interior and door-closing bleepers; a Digital Voice Announcer was subsequently added. Additionally, four trains (less two cars) of ex-Northern Line 1972 MkI stock have been refurbished to the same standard and incorporated into the Bakerloo Line fleet.
The body design is exactly the same as that of its cousin stocks, the 1967 and 1972 MkI, having wrap-around driver’s windows and no side door into the driving cab.
A rather unhelpful picture which I assure you does depict a 72/2-stock train, can be seen here.
One 4-car unit on the Bakerloo Line is different to all the others, as it has no “middle” cab at its 33xx end, instead an Uncoupling Non-Driving Motor (UNDM). This is the result of much swapping around and amalgamating of vehicles left over from trains which have lost vehicles because of collisions. Its cars are numbered xx99 to draw attention to the fact that it is different to all other members of the fleet.