1973 Tube Stock operates on the Piccadilly line of the London Underground and was introduced in
1975 for the opening of the extension to Heathrow Central (now
Heathrow Terminals 1, 2, 3).
A total of
88 trains were built in 1972-75 by Metro
Cammell in Birmingham.
They entered service between 1975 and 1977
and were later refurbished by Bombardier Transportation
stock was refurbished between 1996 and 2001; the last unrefurbished
train was despatched from Northfields depot in early 2001 before
re-entering service in July of that year. In 2005 an upgrade was
made to the seats involving the royal blue seat moquette. Like all
operate on a four-rail 630 V DC power system.
Piccadilly line's 1973 stock trains
are kept in depots at Cockfosters in the north-east and Northfields in the
They are painted in the London Underground
corporate livery -
blue, white and red.
76 1973 stock trains are required for peak Piccadilly Line
Former rolling stock
The 1973 Stock was built to replace the 1956 Stock
, 1959 Stock
and the (seven)
formerly used on the Piccadilly line. The opening of the
extension from Hounslow West to Heathrow Central necessitated the construction of new trains, which
would also need to be suitable for passengers with large amounts of
luggage. The trains thus have extra space by the doors
to allow for the luggage of passengers travelling to Heathrow
The 1956/1959 Stock was subsequently
transferred to the Northern line
the 1938 Stock trains were scrapped.
1973 Stock at Hounslow West
1973 Stock at Rayners Lane
The stock was fitted with a non-standard type of Digital Voice
Announcer (DVA)(Julie Berry). Rather than other lines, which use
wheel counters or GPS
to automatically provide
announcements, the 1973 stock announcements had to be operated
manually by the driver keying in a unique code. This being rather
cumbersome, most drivers made their own announcements, if at all.
In November 2006, the system was changed to an automated announcer
with a simultaneous upgrade to the dot matrix displays in the
carriages. The driver can also select two settings "commuter" and
"tourist". In addition to this, the driver can add extra
announcements through a code for example "please stand clear of the
doors" or "Let customers off the train first please"
In addition, the "alights" are missed out of the "commuter"
The "Alight" sections include:
King's Cross St.
Pancras tube station: "The Royal National Institute of the
tube station: "The British Museum"
tube station: "London's Transport Museum"
tube station: "Buckingham Palace"
Knightsbridge tube station: "Harrods"
Kensington tube station: "The museums and Royal Albert Hall"
tube station: "Earls Court Exhibition Centre"
Holborn, Knightsbridge and Barons Court Stations are examples of
stations which have an exclusive announcement due to their gaps:
"Please mind the gap between the train and the platform."
In December 2007, the Piccadilly Line added St Pancras
International to its dot matrix display and Digital Voice Announcer
(DVA). The reading is as follows: "This is Kings Cross St Pancras.
Change here for the Victoria, Northern, Hammersmith and City,
Metropolitan and Circle Lines and national and international rail
In March 2008, the system went through another change - it has been
the second announcer system to have the feature of saying "Please
mind the gap between the train and platform" at the station before
any other announcement, e.g: "Please mind the gap between the train
and the platform. This is Barons Court. Change for the District Line
. This is a Piccadilly Line
service to Heathrow Terminals 1,2,3 and 5"
Additionally Hatton Cross and Hounslow West now plays an
announcement to inform passengers about how to reach terminal 4 or
5 depending on the service.
The 1973 Stock is scheduled to be replaced in 2014 by the proposed
London Underground 2014
|100 - 253
||854 - 895
||300 - 453
||500 - 653
Refurbished 1973 stock interior.
Each train is made up of two units of three cars:
DM - T - UNDM + UNDM - T - DM
Some units are also formed with a second DM in place of the UNDM -
these are known as "double ended" units. A Driving motor car (DM)
has a driver's cab and traction equipment. A trailer car (T) has
neither cab nor traction equipment. An Uncoupling Non-driving motor
car (UNDM) has traction equipment without the driving cab, though
it has control for purposes of uncoupling
All trains in passenger service operate as two units, trains are
only permitted to move as a single unit in depots. However one single
double ended unit was used to operate the peak-hour Aldwych
branch shuttle service, until the branch closed in