Northeast England during the pre-grouping steam era.
Out of ninety-three Diagram 10 Ordinary Composites, twenty-two were converted to Diagram v Ordinary Thirds prior to the end of 1906, with a further eleven converted between 1907 and 1912.
Diagram v had no drawing in the drawing book, probably because the conversion consisted merely of taking out the First Class fittings, inserting Third Class benches and relettering the compartment doors.
The six-wheelers had been cascaded down the pecking order since the 52ft bogie clerestory carriages began arriving in 1895, around the same time as the final Diagram 10s left the shops.
The cascading process accelerated when the 49ft bogie carriages arrived in 1899.
As the Diagram 10s descended through the pecking order the demand for First Class seating diminished and conversion to Third Class was a cost-effective way of meeting Third Class demand for strengtheners, on excursions, specials and party trains.
The length of 34ft6in would have been obvious when marshalled alongside the usual 32ft Thirds and whilst the First Class interiors had been removed, the leg room remained that of First Class.
That would make for a better journey experience for the passengers who embarked and no doubt regular Third Class travellers would head for them as soon as they noticed one or more was assigned to their train.
With three compartments of the larger size in a Diagram v this was quite a bonus for a day out.
Issue two of the North Eastern Railway Association Express magazine had some information on the numbers of 6-W carriages on the North Eastern.
In the census of December 1922 the NER was turning over 465 6-W Thirds of all types to the NE Area of the LNER. Some 257 of them were the Diagram 15 Third, which was the most common design.
There had been 939 Diagram 15s running in 1910, falling by almost half to 505 in 1919 and almost half again by the start of 1923. During 1926, between January and December, the numbers fell from 105 to 77,
At December 1929 the Diagram 15 had just 31 examples running, while a year later, at December 1930, none remained at all.
The remaining 108 6-W Thirds were all other types of Third Class 6-W carriage, that is Brake Third, Lavatory Third and Luggage Third. I presume that the Brake Third type would have made up the majority, due to the prevailing practise of book-ending trains with Brake Thirds. How many of the total were Diagram v is unknown to me, but as they were early/mid-1890s veterans, and as such among the last 6-W carriages turned out of works, one or two of them may have lingered until the end.
Further reading in to the Diagram V reveals a more complicated picture than I initially thought.
In 1891, the company built eight 34ft Ordinary Composites to Diagram
f, which the 1906 Carriage Book lists as lacking a drawing but states "
Similar to Diagram 10" That is, 3 First Class and 2 Third Class compartments.
With the Diagram f being 34ft and the Diagram 10 being 34ft 6inches, I assume that each First Class compartment was 2 inches less than those in the Diagram 10.
A further sixteen Diagram
f emerged from works in 1892 along with the first twelve Diagram 10s.
A final diagram f left works in 1893, meaning that the Company had two different carriage lengths in the 6-w Ordinary Composite class of the same (3-2) configuration.
Some Diagram f carriages were destined to also become Diagram
v Ordinary Thirds, with three of the 1891 build being converted before the end of 1906, one of the 1891 build being converted between 1907 and 1912, while five of the 1892 build were converted between 1907 and 1912. How many were converted after 1912 I do not know.
Just what happened in 1891/2 regarding the Diagram 10 and
f interests me
. The normal process was that the Passenger Committee would decide what carriages to recommend building and the Board would sign off on what it considered appropriate, telling the Chief Mechanical Engineer of the time, Wilson Worsdell what new builds he was required to provide in the following year. The Passenger Committee, made up of the District Passenger Managers was a decidedly conservative group and at the start of the 1890s the age of unbraked four-wheelers was less than twenty years in the past. It could be that, while the Composite design was being worked on for 1891 and 34ft was deemed adequate for the provision of three First and two Third Class compartments something went wrong when the carriages emerged. That could possibly have been when a director took a seat in one of them, perhaps the first to leave works and if dissatisfied with the legroom he would not have kept that opinion to himself. The Diagram 10's First Class compartments were 7ft1in, compared to a 30ft Diagram 2 First's 7ft3 3/8in and 34ft Diagram 68 First's 7ft8 1/2in, so I believe that a Diagram
f's likely 6ft 11in just did not meet with contemporary First Class expectations. In comparison a First Class passenger on the ECJS could expect 7ft2in, so changing to a Diagram
f's 6ft11in would be a noticeable reduction for a group who fiercely defended their entitlements.
Why there was an overlap of seventeen Diagram
f in 1892 and 93 with the Diagram 10 is, for now, impenetrable to me. The 34ft legth would suffice for the Lavatory first, the Luggage Composite and a Saloon, so it cannot simply be just because 34 ft solebars for bodies had already been commissioned. If it was an altogether inadequate carriage then surely all of them would have been converted to Diagram
v, but they were not. My speculation in this case, and it is speculation, is that the Diagram
f's possibly went straight to the pool of carriages available for special, excursion and charter/party trains and lived a relatively long life in that role. As time went on, they would have become less acceptable to First Class passengers and so some were converted to ordinary Third Class carriages to Diagram
v. So, some Diagram v were 34ft6in long and some were 34ft long and no differentiation between them when it comes to the Carriage Book.