Long time readers may remember this illustration I did a fair few years ago. At the time I was toying with the idea of BR Flatiron for Brettell Road. People who know anything about these locos will know that they only made it as far as 1938 before the lastof them went for scrap but my theory was what if they didn't and made it another 2o years or so? After all we are all happy to bend the historical truth when it comes to places but why not locos too?
A brief history
Samuel Johnson of the Midland Railway had identified a need for a large passenger tank engine in 1903 and while a 0-6-4 seemed a logical progression of their 0-4-4 tanks several ideas and arrangements were put forward both before and after the design by Deeley was settled on. These ranged from a 4-4-4, a 2-6-2 with odd split side tanks, through several variations of outside cylindered 2-6-4's and a 4-6-4. All of the class of 40 were built in 1907. As it turned out this was not a wheel arrangement that would become at all common in the UK. The front axle was mounted into a Carzatti slide giving extra play and resulting in a somewhat backwards arrangement of coupling rod with the knuckle joint ahead of the middle axle and not behind it as was the norm.
In early LMS days the class were fitted wit new superheated Belpair boilers resulting in a different firebox and being longer, the boiler now sticking out from the front of the tanks. The cab spectacle plates were also changed at the same time.
In 1928 loco No.2015 derailed at speed near Newark and a passenger on its train was killed. 2 more derailments occurred in early 1935. The first instance was when N0.2023 derailed at Ashton under Hill in February, killing its driver. 3 weeks later number 2011 was observed by railway inspectors operating between Leicester and Burton upon Trent only to itself derail 5 days later at Moira. Fortunately this time no serious injuries occurred. But the reputation had set in, the class were well known as rough riders on anything other than perfect track and were noted to run smoother going backwards.
An idea not completely without precedent.
The case for these locos lasting longer than they did is not without precedent. Class leader No.2000 underwent some modifications to see if the riding could be improved. These were the replacement of the front axle arrangement with traditional springs (giving a different look) and an improved bogie with side bolsters. No 2000 was tested against an unmodified classmate No.2012 which itself had recent general repairs and not yet clocked up 1000 miles since. Both locos were considered to be in first class running order.
On the first test No.2000 ran between 35 and 50 mph before selling back to 35 and it was reported that the engine rode very steadily with no side movement reported of the trailing bogie. Test 2 saw No.2000 run between 45 and 50mph settling back to 45 with the same results. Test 3 was run at 55 and occasionally 60mph and this test was satisfactory enough to try test 4 where she was run over 60mph, reaching a speed of 67 before selling back to 65. It was reported that a slight amount of side oscillation developed and a slight roll but was still considered satisfactory riding.
No.2012 ran 3 tests. Test 1, 35mph occasionally touching 40 and the riding was reported as good with a slight oscillation and roll being perceptible on the footplate. Test 2 saw 45mph with occasional 47 and the riding was considered fairly good but with more oscillation and tendency to roll. The final test saw running at 55mph with occasional 60 and the riding was reported as rough with the oscillation and roll said to be pronounced and the front end having a tendency to develop an up and down surging motion.
Although the results of the modifications to No.2000 were good Stanier decided that the rest of the class were not worth altering and between 1935 and 1938 they were all scrapped with many of the (standard) parts going on to other locos. It was reported that many of the boilers were used on 4f's.
But what if Sanier thought the modification were worth doing to the entire class? They were only 30 years old and many midland locos lasted much longer than that. As the boilers went to other locos they were obviously good so it it such a leap to think that a modified flatiron could indeed make it into BR days with only a slight tweak of history is it?
The Model
Luckily for us South Eastern Finecast do a kit for these loco's and I've had one in the stash pretty much since I did the drawing above.
Starting with the bogie as supplied on the left and my modified version on the right. It's been modified mechanically to provide basic springing on all 4 wheels and a basic form of sprung side control. As supplied the bogie is designed to be attached to a swinging arm much like the RTR guys tend to do. I didn't really like that idea much if I'm honest.
The main frames modified with some spare Brassmasters inside motion bits. I considered there was no way you would be able to see working inside motion so just modelled the bits I felt you might see if you looked hard enough!
The cab Spectacle plate is a particularity weak point of the kit as it bears only a passing resemblance to the real thing, I made a new one from plasticard as can be seen on the right. If anyone wants the drawing for this (which I admit is a best guess on my part) it can be downloaded from
https://p4newstreet.com/wp-content/uploads/flatiron-cab-front-copy.pdf
The rebuilt cabs also seemed to have slightly longer roofs than the originals and little bits of Nickel strip were soldered to the corners to replicate this.
Front view. The kit relied on an upper half of the boiler/smokebox merging with the lower half which is cast as part of the tank front and this forming the front of the smokebox. The end result wasn't all that round so I cut it back and used a 22mm copper ring in its place Buffers are from Lanarkshire Models and lamp irons from Stenson Models
The rear view. The steps are cast into the rear of the bunker and where a little chunky. Also the top one was too low so these were replaced with some of my mk1 coach end steps. The window frames are from a Mainly Trains spectacle plate etch. Note the larger buffers on this end.
The top of the tanks are vague as supplied with just casting for the water filler caps and 2 air vents that were related to the water pick up gear. In reality only 2015 had this fitted so they should be left off all other models of the class. This is my educated guess of what should be there but i do think there should be more clutter than this. Photos of this area are rare and so far I've only found 2
Progress will now need to wait until after Scaleforum where i need some more bits.
