Class derby-lightweight DMUs in Departmental Use
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975008
circa March 1971
The 35mm photographic recording unit inside 975008, part of the Derby Lightweight Ultrasonic Test Train. These recorded the results from the probes, the analysis of the film afterwards was a slow manual process restricting operation to about 2,000 miles a year. They were later replaced with magnetic tape, the digital analysis was much faster allowing yearly mileage to be increased to about 10,000 miles a year. Image courtesy of Philip C Johnson. British Railways Board.
circa March 1971
An official image showing the trolley under ultrasonic test car DB975008 (ex-79612). This carried the ultrasonic probe heads, these could be lifted to pass over points and crossings, the whole trolley would be raised clear of the rails to allow running at normal traffic speeds. British Railways Board.
circa March 1971
An official image showing the equipment operation control position on DB975008, part of the ultrasonic test train, circa March 1971. Although they can be barely seen in the poor quality image, there are floor windows on either side of the sliding seats. The operator could monitor the operation of the trolley underneath and its ultrasonic probes, the signals being produced and the recording camera function. British Railways Board.
circa March 1971
An official image showing the equipment operation control position on DB975008, part of the ultrasonic test train, circa March 1971. The operator can monitor the signals being recorded on film and the operation of the camera, adjust the positions of the ultrasonic probes which he can observe through transparent panels in the floor. British Railways Board.
circa March 1971
An official image showing the equipment operation control position on DB975008, part of the ultrasonic test train, circa March 1971. British Railways Board.
Unknown Date
DB9750008 (ex-79612) as part of the Ultrasonic Test train, Tyseley depot, probably not long after conversion. Graham Clark.
circa 1972
The Ultrasonic Test Train DB975008 + DB975007 at the Derby RTC, circa 1972. Stuart Mackay Collection.
circa 1972
The logging position and drivers controls in the cab of DB975008, taken circa 1972. Stuart Mackay Collection.
circa 1972
The logging position in the cab of DB975008, taken circa 1972. Stuart Mackay Collection.
circa 1972
The control position in DB975008 of the Ultrasonic Test Train, circa 1972. Stuart Mackay Collection.
circa 1972
The control position, and corridor to the right, in DB975008 of the Ultrasonic Test Train, circa 1972. Stuart Mackay Collection.
circa 1972
The equipment behind the control position of Ultrasonic Test Train vehicle DB975008, circa 1972. Stuart Mackay Collection.
circa 1972
The equipment behind the control position of Ultrasonic Test Train vehicle DB975008, circa 1972. This is looking towards the back of the vehicle, with a corridor on the left. Stuart Mackay Collection.
circa 1972
The trolley carrying the ultrasonic probes under DB975008. Circa 1972. Stuart Mackay Collection.
15th June 1974
The Ultrasonic Test Train at Tyseley, 15/6/74. This view clearly shows the undercarriage which dropped onto the rails when the set was recording. David Mant.
20th June 1976
The Ultrasonic Test Train is seen in Old Oak Common, 20th June 1976. Jim Ellington.
20th June 1976
975008 at Old Oak Common, 20/6/76. Jim Ellington.
11th December 1976
The Ultrasonic Test Train, DB975008 - 975007 (formerly Derby Lightweight M79612-M79018) at Old Oak Common depot on 11 December 1976. The DMU found its way into preservation as a result of its extended career in departmental service. Photographer - Roy Burt. Gordon Edgar Collection.
Unknown Date
The Ultrasonic Test Train (975008 + 975007) at Stratford depot, date unknown. Peter also sent an accompanying image of a new German UTT at Stratford, and noted "when tested against each other the new German one missed so many faults on the stretch of line it was sent back"! Peter Boor.
Unknown Date
A detail on Derby Lightweight Ultrasonic Test Train vehicle 975008, possibly part of a more accurate speedometer system than the standard Smiths one. Philip C Johnson.