762 LYN and train approaching Woody Bay,  2004, Eric Leslie

The 762 Club - LYNformation Bulletins

Aware that much development has been going on in the background, but little has been seen in public, and also that the pace of development is gradually increasing, the 762 Club introduced this on-line update feature in early 2013. This page, updated around once a month, will provide brief news snippets, images and general "Lynformation" on our progress. Please come back regularly for the latest updates.

(just hover your mouse over images to see captions, click to see a larger version where available):


See the current and archived versions of LYNformation here:

LYNformation Bulletin No.16: May 2014

19 Months to go!

Welcome to LYNformation 16, another action-packed episode in the construction and birth of our favourite engine, 'LYN'.

1. Progress on the Valves and Motion, Part One

Whilst we are all delighted to see big bits of metal being produced, LYN is not all about size! We welcome two new parts of the motion being constructed for us by White Gables Engineering. One of these, A4-LYN-638 must be the smallest part we need to make. The photo shows the drawing and a 1 coin to act as a scale marker! The other part made for us by Malcolm Jones at White Gables Engineering is a bit bigger and is A3-LYN-637, which also goes into the connecting rod assembly.
   

2. Progress on the Valves and Motion, Part Two

We are delighted to show the four parts made for us by Adrian Porter from Porterhouse Models. I have included two photographs. One is of Adrian himself and the other is of the parts he has made for us. They go into the Valve Conrod assembly and the Valve Gear Rocking shaft. Even better news is that Adrian has kindly offered to make more parts for us as well.
   

3. Pipework Schematics: Feedwater

This hopefully will be the last time you see this drawing as it's now all finished and in stock. In the grand scheme of things, we have divided the plumbing into four categories, the easiest of which is the cold water (or feedwater) system. There are five components: One big valve that acts as a drain valve from the tanks, attached to the balance pipe, then two combined filters and shut off valves, and finally two ball valves to control the water to the injectors. Here is a photograph of the five valves together. All done!
   

4. Coal Bunker

It's finished and will be delivered to Woody Bay ready for the Spring Gala on 10th and 11th May. It will then go to Alan Keef's for storage until it is assembled on the engine late next year. A huge step forward.
   

5. Axle Boxes and spacers

This large, very complicated and vital part of the engine has been started. It involves much precision engineering to make the axle boxes, fly cranks, axles and fit them all to the wheels - in some cases, to 1/10th of a millimetre tolerance! The wheels will be pressed onto the axles on Wednesday 7th May, and the wheel sets will then be transported down to Woody Bay for the Gala. They will then be returned to Alan Keef to be finished off and the axle box's mated and fitted when the wheel sets return. The first four images of this process are shown. It a very expensive bit of the loco and not very 'sexy' but vital. This is the kind of work where most of your most generous money goes.
   
   

6. Side Tanks

This is a bit of a tease really, but GREAT news is that the side tanks are also nearly ready. With luck, there will be a full news report next month on the construction of the tanks but just for now, here is one image to whet your appetite!
 

7. Blast Pipe Assembly

An order has been placed with Alan Keef for the blast stand. This sub-assembly covers all of the parts needed to make the blast pipe and associated items. It will bolt onto the saddle (already in stock) and direct the exhaust from the cylinders up and into the chimney (also in stock). It is a heavy lump of metal, fairly complex and will contain the lempor exhaust jets that will make steaming much more efficient. This assembly is scheduled to be finished in time for the Autumn Gala. Once complete, the only smokebox items left to be made are the main steam pipes and the spark arrestors.
 

8. Headlamps

There has been some debate about whether we should spend time and hard-pressed money making the distinctive and very Baldwin style headlamps. The 762 Board decided that we would go for commissioning two headlamps and the order has been placed with David Priest to make two for us. They will be quite expensive as they will be 'one-offs' but we think it will finish the engine off.

9. Pipework Schematics: Lubrication

Again, this will be the last time you will see this subject mentioned hre, as it is now complete. We have purchased all of the items that make up this section of the locomotive and they are all in storage. The biggest and most costly was the mechanical lubricator and associated non-return valves. These were delivered to us by William Couthard of Carlisle this month and will go into store at Ross-on-Wye until needed. Another big section crossed off!
   

10. Non-return Valves

We have been very lucky to have had a big order of parts sponsored for us by Steam Powered Services Limited who have bought all the parts needed from Crane Fluid Systems. These are all of the non-return and gate valves. If we had to buy all of these valves, it would have cost us over 3,000. Most go into the vacuum system but others go into the Feedwater system and a few into the steam auxiliary schematic.
   

I think that is quite enough for one month...

Peter Best


See the current and archived versions of LYNformation here:



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