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Quainton News Archive - Quainton News No. 98 - October 2007
BR(WR) 94XX Class 0-6-0PT No. 9466
9466 News - Bruce Murray
Well, the one thing that can be assured when it comes to main line steam operation is that nothing is certain. As reported in the last News from Quainton the main line return for the pannier was scheduled for the end of August. News from Quainton had just gone to print when the plans were changed and everything was put back to November. This was nothing to do with the loco, but rather the last minute denial of access to me MOD depot at Kineton, the destination of the first full tour. This cancellation led to the postponing of the test runs. The revised dates and itineraries are now a light engine test run from Tyseley to Bescot and back on 1st November followed by a loaded test run from Shirley to Stratford upon Avon later the same day. The first full main line run will now be on 3rd November. This tour will now be heading from Tyseley Loco Works towards the Madeley Branch via Wolverhampton and terminating at Ironbridge Power Station, with an afternoon return to Birmingham. Then on 30th December 9466 saunters her way around the very edges of Birmingham visiting the likes of Snow Hill, Leamington Spa, Coventry and Nuneaton.
There is the possibility of further trips in early 2008 so please keep an eye on www.9466.co.uk and www.vintagetrains.co.uk. where full details of all the trips including booking details can be found. Phone enquiries to Tyseley can be made on xxxxxxx xxx. These tours provide the perfect opportunity to put Quainton's name on the mainline map and we will endeavour to ensure that this happens.
The report in Quainton News twelve months ago outlined the work required to get the loco ready for the main line. Since then, all the installation work has been completed, both mechanically and electrically.
Design approvals were obtained first time for all the additional brackets and fixing points with the exception of the brackets for the front antenna. These had to be redesigned with angle iron a quarter inch bigger on all sides because the original design would not quite withstand the required G forces! All the wiring and steam and vacuum piping was completed and fully tested over the first half of the year.
Thales Communications came and certified the TPWS. This involved setting up test transmitter grids in the 4 foot on the running line, connecting them to a set of line side TPWS signalling control equipment and running the loco over the grids at 5mph. Movement over the grids had to be repeated many times because different frequencies, corresponding to different signalling conditions, had to be transmitted to the loco so that the strength of the transmitted signal as received on the loco could be measured to ensure it was within specification.
The monitoring was done by a laptop in the cab and it was very strange to see computers set up on the footplate of 9466 with wires trailing all over the place. To make life easier 9466 was shunted up and down dead with the 04 diesel, which could also supply the vacuum for the systems on the pannier.
Having completed the tests with the loco on the move it was then necessary to complete static tests with 9466 positioned over the test grids. These tests required different sets of frequencies to be transmitted via the grids to the loco to exercise the TPWS equipment and ensure that all parts of the system operated within specification.
In plain English this meant checking that the correct sequences of operation happened, that the lights came on when they should and the brakes came on and released when they should. All went well and we finished the day with a certified system.
The speedometer has been calibrated and the cab window glass had to be replaced as, guess what, it did not meet current standards! Everything has therefore been completed with the exception of a couple of items that will be attended to when 9466 gets to Tyseley in mid October. These are the certification and sign off of the On Train Monitoring and Recording System (OTMR) and final weighing of the loco using the Tyseley weighing scales.
After this our VAB should complete the final sign-off. Weighing is necessary to ensure that the weight on each wheel is as the designed axle loading. The OTMR commissioning and certification will be undertaken by a Network Rail accredited testing organisation.
The most surprising statistic to emerge from what we have done is that 400 metres of single core wire has been installed into a locomotive that is 10 metres long! A few reams of paper have also been used writing the reports to back up the physical work.
In between all this work and the general maintenance, including changing 4 springs, 9466 visited three railways this year. A trip to Llangollen in April for the Betton Grange Steam, Steel and Stars Gala was splendid. This was the biggest event ever to be staged at this railway and it was a major success. The three day event culminated with a TEN loco cavalcade from Carrog to Llangollen. 9466 was coupled ninth in the line up with just a little 14XX behind us. This was fine until we plunged into Berwyn tunnel and suddenly realised that there were eight chimneys and safety valves in front of us!
After returning from Wales 9466 went back to the Mid Norfolk Railway for a few weeks. As I write she is at the Spa Valley Railway after running at Quainton's August bank holiday weekend. From Kent 9466 will go straight to Tyseley and is likely to stay there until early next year when she will be back at Quainton.
Text © Quainton Railway Society / Photographs © Quainton Railway Society or referenced photographer
Page Updated: 01 December 2017