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Stephenson valve gear for Derby 2P

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John R	31/12/2009 21:15:23
8 forum posts	I was wondering if one of our valve gear experts could be persuaded to design Stephenson’s valve gear for Don Young’s Derby 2P design? I have a liking for this design but, for me, the non-prototypical Joy valve gear is off-putting. This is not a criticism of Don’s design which I am sure is a great performer. It just a personal view that valve gear is part of the essence of the prototype.
John Baguley	01/01/2010 10:56:47
517 forum posts 57 photos	Hi John, I will probably be able to do it for you if nobody else volunteers. I have the original LLAS articles with the drawings etc. Designing valve gears is pretty straightforward nowadays with the help of the work of Don Ashton etc. John
David Clark 1	01/01/2010 11:38:27
3357 forum posts 112 photos 10 articles	Hi John and John Don Ashton is willing to do the basics but you will need to flesh it out and clothe it. If interested, email me direct and I will put you in touch. regards David
John R	05/01/2010 12:11:22
8 forum posts	Hi John and David, I am somewhat embarrassed because I realise belatedly that my post was, in effect, asking for someone to do some work for me! This feeling is compounded by the fact that the 2P is on a “wish List” and not on my workbench. I will send David a private mail, as requested. I have a copy of Don Ashton’s book myself, which adds to my embarrassment because I guess I ought to be able to have a go at designing the gear myself. Maybe in the back of my mind I was thinking that there might be others interested and that an article in M.E. might be appropriate and the author could accordingly be remunerated. I am very grateful for the helpful offers but I really don’t want to put anyone to any trouble on my behalf.

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