https://i.imgur.com/oFBpk7B.png

https://i.imgur.com/GrHY9Z9.png

I dont understand a lot of these numbers so im not sure if they can be used as a base to calculate the various gauges …

]]>I was going to use the published known values of NI80 down to 30 and see if i could establish a relationship between the ratio changes and the values you require for steam-engine, then use that relationship to derive the numbers for NI90 … until I read here that you seem to be a real stickle for exact numbers, requiring links to published data to validate what is submitted … SO… i will continue searching for what you need.

]]>I would have to assume any kind of accuracy within 1 to 5 percent margin of error should be plenty accurate enough for us clowns… ðŸ™‚

]]>Best regards from Greece .

Glenn ]]>