Engineering updates

Engineering Update - Jan 2016

Locomotive Frame Assembly

Work continues on the construction of The Unknown Warrior at number of locations.

Engineering update - December 2015

Locomotive Frame Assembly

Work continues on the construction of The Unknown Warrior at number of locations. The construction of a steam locomotive of any size is a complicated engineering task and the past few weeks have proved to be just that. While it may appear that not a lot is happening above the surface, in fact the 8 legged duck is paddling furiously although perhaps not all in the same direction!

Engineering Update - October 2015

Locomotive Frame Assembly

Work continues on a number of fronts on the construction of The Unknown Warrior.

The Unknown Warrior takes a rest at Donnington Services during its movement from Barrow Hill to Tyseley, 29th September. Photo – Kevin West

The major work of permanent fitting the cylinders and Motion Brackets to the locomotive has been completed.

Engineering Report - August 2015

Locomotive Frame Assembly

Work continues on a number of fronts on the construction of The Unknown Warrior.

The major work of permanent fitting the cylinders to the locomotive has been completed.

RH Motion Bracket with Bottom Slide Bar in place being drilled – Photo:- Gavin Shell

Engineering Report - June 2015

Locomotive Frame Assembly

Work continues on a number of fronts on the construction of The Unknown Warrior.

The major work at present is the permanent fitting of the cylinders to the locomotive frame assembly.

Engineering Update - May 2015

Locomotive Frame Assembly

Work continues on a number of fronts on the construction of The Unknown Warrior.

Engineering Update - May 2015

Locomotive Frame Assembly

Work continues on a number of fronts on the construction of The Unknown Warrior.

Engineering Update - February 2015

Locomotive Frame Assembly

Work continues on a number of fronts on the construction of The Unknown Warrior.

The Unknown Warrior is a 3 cylinder locomotive after the fitting of the right hand cylinder at outside Llangollen shed. 23rd January  2015

Photo – Kevin West

TUBEPLATE PROGRESS

Progress continues on the construction of the boiler for The Unknown Warrior.

Latest work has included drilling the Firebox Tubeplate as seen here in this picture.

Picture - Oakwood Visuals

A full engineering update will follow next week.

Engineering Update - December 2014/January 2015

Locomotive Frame Assembly

The Unknown Warrior’s frost covered nameplate catches the sun outside Llangollen shed. 3rd December 2014

Photo – Kevin West

2014 review - HELP US FINISH THE JOB

We have now reached a major turning point in the construction of 'The Unknown Warrior's' chassis, with a change in emphasis from manufacture to assembly. Much still needs to be done but with the last of the major castings now complete we are turning our attentions to the myriad of smaller parts which will be required.

Engineering Update - October 2014

Locomotive Frame Assembly

45551 in the shed at Llangollen November 2014

Photo – Tom Peacock

New Bogie Wheel Cast

Less than a month from making the decision to manufacture a new wheelset for the locomotives bogie, rather than wait any longer for the possibility of a set from an 8F in Turkey, the first Wheel Centre has been cast. 

The 3D CAD data was supplied to Premier Patterns by the project's CAD Designer, Kevin West and the pattern cut in a polyurethene foam.

 

Engineering Update - September 2014

Locomotive Frame Assembly

The Unknown Warrior on display in the mud at The Great Dorset Steam Fair

Engineering Update - July 2014

Locomotive Frame Assembly

Following the wheeling of the chassis at Tyseley Locomotive Works in late June the chassis was only display at the Tyseley Locomotive Works Open Weekend on 5th & 6th July, before moving back to Llangollen on Friday 11th July.

That one small sentence does not explain the effort and logistics involved to move the chassis the 80 miles between to two sites.

Full set of Cylinders for 'The Unknown Warrior'

'The Unknown Warrior' now has all three cylinders following casting of the second Outside Cylinder at Coupe Foundry, Preston, on 3rd July.

Engineering Update May/June 2014

'The Unknown Warrior' is Wheeled.

We realise that building a complex locomotive like the Patriot was never always going to be a straight forward exercise. The last few weeks have been interesting and challenging to say the least. From the outside it must have looked as though nothing was happening, but I can assure you it was a bit like a duck swimming across the lake, all calm above water, but below the legs are working furiously in all directions at the same time!

Engineering Update - April 2014

Work continues at Tyseley Locomotive Works on preparing to fit the axleboxes into the main frame. All the Horn Guides have been polished to remove machining marks and the corners radii added by hand. All this has been completed to the usual high standard expected from Tyseley.
The Axleboxes have had the brasses pressed in and the journals have been machined to the size of the axle. The bronze wearing faces are now being machined to the sizes determined from the frame assy.

First Outside Cylinder Casting Revealed

Following the casting of the first of the two Outside Cylinders last Wednesday evening, the casting has remained in the mould to cool until early this morning. The mould was opened and the sand broken away to reveal the casting.

First Outside Cylinder Cast

A group of project supporters travelled to Coupe Castings, Preston last night to witness the casting of the first of the two Outside Cylinders required for The Unknown Warrior.
Five tons of molten SG Iron was prepared for the casting, the final casting weight was expected to be around 2 1/2 tons.
The casting will now be left in the mould until the middle of next week to cool, before being broken out of the sand mould.

Engineering Update - March 2014

Locomotive Frame Assembly
Work continues at Tyseley Locomotive Works on preparing to fit the axleboxes into the main frame. All the Horn Guides are now ground and the frame assembly has been measured to determine how much to machine from each axlebox to get the axle centre in the correct position. The Axleboxes themselves have had all the remaining oil holes and fixing holes for the brasses machined in. The brasses are ready to be pressed in over the next couple of days.

Engineering Update - February 2014

Locomotive Frame Assembly
Work continues at Tyseley Locomotive Works on the grinding the Horn Guides ready to fit the axleboxes. A breakdown on the horn grinding rig has added time to the task, but this work is now expected to be complete in the next 10 days. Once the grinding is complete the frame assembly will be measured to give exact axle centres and the offsets established to final machine the axleboxes to fit.

Engineering Update - January 2014

Following the flurry of activity to get the loco motive on its wheels for display at the Warley Model Railway Exhibition in November 2013, things may have appeared to have slowed down, but in reality it is still full steam ahead on the progress front.

Engineering update - October 2013

The two outside motion brackets and boiler support brackets have now been cast and have been machined. The cab has been ordered from R.D. Moore's at Coalville for delivery at the end of October. The driving wheels have had all the tyres turned at Tyseley Locomotive Works, where work on machining the driving wheel axleboxes has been completed. These will be taken to the Llangollen Railway Works to be fitted to the frames. The rolling chassis with cab and smokebox will be exhibited at the National Memorial Arboretum and the Warley National Model Railway exhibition during November.

Engineering update - July 2013

The completed driving wheelsets for 'The Unknown Warrior' were delivered to Tyseley at the beginning of July. The all-new Heritage Railway magazine-supported wheelsets have been assembled at Buckfastleigh workshops of South Devon Railway Engineering. At Tyseley Locomotive Works they will be balanced with lead weights, turned, and have the axleboxes fitted before being taken to the Llangollen Railway Works to be fitted to the frames of 'The Unknown Warrior' to enable the rolling chassis (minus the front bogie), to be completed.

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