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As I also said Jo's BB1 is having all the same sort of modifications done including a boiler redesign but she has got a bit further with hers which is in this thread. One only has to look at the first couple of posts and see se has the same views as me as the drawings "leaving a lot to be desired" or are "downright wrong" yet I don't see anyone jumping down her throat so what's the problem with me having the same views?https://www.modelenginemaker.com/index.php/topic,2547.0.html
I have a starting point in the Hanning drawings but as I mentioned they leave a lot to be desired A lot of his design has been overly simplified, some things are downright wrong but for a 40 year old design John Hanning did a lot better design on this engine than I could have at the time.
We know you are a comparative newcomer to model engineering and may not appreciate just how much John Hanning and Colin Tyler were respected in their day.
My understanding when Mike said this:Quote from: Vixen on October 07, 2021, 05:15:27 PMWe know you are a comparative newcomer to model engineering and may not appreciate just how much John Hanning and Colin Tyler were respected in their day.Was that he was referring to the fact that he was reading Model Engineer back when John and Colin published their design and consequently he appreciated how model engineering had to be done back then and respected them for it. Malcom Frost's 1997 design of the A7 Fowler was from the outset intended to be a scale model and is not intended to be constructed solely on a 3 1/2" lathe as John Hanning mentioned in the second of his 1966 series on the build of the BB.