Peckett 1900

Peckett 1900 The official page for Peckett 0-4-0T No.1900, built in 1936 - Britain's smallest standard g She was built to the order of Courtaulds Ltd.

No.1900, believed to be Britain's smallest standard gauge steam locomotive, was built in 1936 by Peckett & Sons Ltd at their Atlas Works in Bristol. Unlike most of Peckett's products No.1900 was not a standard design but still incorporated many standard parts, some of which came from narrow gauge designs. at a cost of £840 to work at their plant in Flint, North Wales. The plant was split in two by

the LMS Chester to Holyhead railway, and the rail link between the two parts was via a very low tunnel through the mainline embankment. It was for this reason that such a small engine was required.

1900's main duty was the shunting of wagon loads of waste, from the Rayon fibre manufacturing process, out of the plant and onto the sea wall from where it was dumped. There were, however, fears about the safety of this operation. The tunnel was in the dip of two very steep inclines and No.1900 had to work flat out down one side in order to gain sufficient momentum for the climb up the other! Quite rightly the works management were worried that somebody might be injured during these helter skelter proceedings. So eventually, in 1954, No. 1900 was replaced by two engines, one on either side of the tunnel, the wagons being worked by a rope between the two. Made redundant from Flint No.1900 was returned to Atlas works for an overhaul, during which she received a new firebox, before being sent to Courtaulds' Grimsby plant. Here an extension was fitted to the cab and she was set to work on construction trains. When the factory was completed Courtaulds took delivery of a Sentinel locomotive and No.1900 was kept as a spare. Courtaulds last used her in the early 1960s and she lay in store until privately purchased and moved to the Buckinghamshire Railway Centre, Quainton in September 1971. Restoration commenced, including removing the unslightly cab extension, and in 1980 No.1900 returned to service. She was subsequently fitted with vacuum brakes to operate passenger trains. She spent the summer of 1983 on the shores of Windermere, working on the Lakeside and Haverthwaite Railway. Here she completed 35 miles on light passenger service. On the way home 1900 visited Steamtown, Carnforth and spent two months in the company of such engines as Flying Scotsman and Lord Nelson. During 1985 No.1900 was invited to visit Chatham Dockyard by the North Downs Steam Railway. She left Quainton in November 1985 for a NDSR event in late November, with another open day planned for the Spring prior to her return home. However, prior to that event NDSR's tenency at Chatham Dockyard expired, so the Spring open day did not occur. No.1900 was steamed again for the NDSR members before she returned to Quainton. After several years of operation No.1900's boiler ticket expired, and she also required further major work. She is now undergoing her second major overhaul in preservation. With her diminutive size, No.1900 is known to many as The Flying Bufferbeam.

The axlebox machining has continued and now only requires the drilling for the tray pins and oil pipes. The new valve ro...
18/04/2026

The axlebox machining has continued and now only requires the drilling for the tray pins and oil pipes. The new valve rods are complete, and we have had a trial fit up of the refurbished valve guides on the motion plate. A check of the frame for square has shown a slight misalignment which will be corrected in the final machining of the axlebox brasses.

Now the weather is warmer we have started on the paintwork of the wheels and axles, the frames have been sanded and filled and one side has received its first application of undercoat.
The machine shop has started on the machining of the axlebox crowns. Last week the expansion links were removed from store for assessment, they are badly pitted all over, and the die blocks are worn out. Although we ran the loco with them during its last period in service, its probably time to replace it all. We are currently awaiting quotes.

One of the principal tasks we undertook during the Christmas /New year holidays was the final machining of the crosshead...
01/02/2026

One of the principal tasks we undertook during the Christmas /New year holidays was the final machining of the crosshead slippers. Thes were new and fitted up to the crossheads two years ago, but machining to fit the slide bars was awaiting the final alignment of the slidebars. We machined up a dummy piston rod that was fitted to the crosshead to provide a datum for ensuring the slippers were machined true. New gudgeon pins and nuts are nearing completion and awaiting only the machining for the locating key.
Most recently we’ve measured up horns and axleboxes and checked the axlebox centres. Three out of four of the boxes are well within the acceptable limits of wear so, as we had two new castings in stock 1 is being machined to replace the worn one.
What we need now is a few days of warmer drier weather so we can paint and line the frames before we’re ready for the wheels.

Slow but steady progress since the previous report.The new spring hanger brackets that we manufactured over a year ago f...
24/12/2025

Slow but steady progress since the previous report.
The new spring hanger brackets that we manufactured over a year ago finally got bolted up. At the same time, we fitted the new brake hanger brackets. Which means that the frames are ready for final rubbing down and painting. We have uncovered traces of the original lining around the frames and recorded the measurements so the repainting can be a faithful reproduction of how it was when it left Bristol in 1935.
The mid-week machinists have been generous with their time and recently completed the two new valve spindles and connecting blocks. Also nearing completion are two new valve spindle guides. Work has started on the vacuum brake train pipe, and smokebox mounting plates which we are fitting to the inside of the frames to ensure we have an airtight smokebox in future.
Andy Hardy’s suggestion of a Pocket Peckett event is a great idea, and a stimulus to make faster progress with the rebuilding.

We’re back, picking up where we left off back in July. The new motion plate has been fitted up with the new angles, usin...
14/09/2025

We’re back, picking up where we left off back in July. The new motion plate has been fitted up with the new angles, using fitted bolts.
The reverser weighshaft has had one of its mountings re-bushed and machined, to accommodate some slight misalignment that was apparent when we tried it in situ. It now moves smoothly without excessive play. The reverser has been refurbished and bolted back in place.
One of our colleagues has done a 3d scan of the steam chests and frame area where the smokebox sits. This is with a view to re-designing the exhaust arrangement and interior of the smokebox so the engine will steam properly. In its previous operating life, it never steamed very well. This was almost certainly due to the very short chimney and poorly designed smokebox.

The brake weighshaft has now been reinstated. Two new bearing blocks were fabricated and machined. These were bolted in ...
24/07/2025

The brake weighshaft has now been reinstated. Two new bearing blocks were fabricated and machined. These were bolted in place last weekend. The cranks for the steam brake and hand brake were fitted.
Also installed was the overhauled steam brake cylinder. This has been fitted in the correct position (so that the centre of the piston is in line with the arc of the crank.) It had spent its first ninety years 2inches too low, which may be one reason why the brake was never very effective! We’ve also reinstalled the hand brake column and associated crank. one of our machinists has been busy making new pins for these and also machining the slotted link for connecting the handbrake.

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Quainton
HP224BY

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