Pro:
for the record, i have the utmost respect for you and for everyother soul on this board.
while i may not agree with everyone with everything, i am also cognisant of the fact that not everyone is going to agree
with me on everything, and that is a good thing.
i am not pounding on you for a formula, i am however pounding on GuyF to produce the formula as he has been the one that has stated that there was only "one" specification from lister, which clearly is not the case.
i should also state that i have deep respect for GuyF, and as he has been a time served engineer i take a harder stance with him to provide proof.
as you have stated perhaps lister used a different formula or changed the formula from the 600 lb spec to the ton spec, and if so then there should be reference to not one formula but two. This would tend to lend credence to the fact that there was no formula by reason that both formula's seem to be lost to time, which i find a bit hard to accept.
i might also add that i too will likely mount a lister to concrete or some spec that fits my needs, as well as likely one that is mounted resiliently. in either case i will buck up and spend the bucks to get either engine balanced properly to start with.
Again i am not trying to beat you or anyone into submission, but i did start this thread asking for proof of the formula or proof of concept or any other reference to the use of a formula by lister or anyother stationary engine manufacture.
i would ask you to think of the benefit of having the "formula", with it one could put together his machine, beit a lister/generator, a lister/pump or whatever and then work out the formula to determine precisely what he needed to accomplish his ends with a measure of assurance that he is at least in the ballpark enough to have a successful installation, without having to overkill the project or worry that he hasn't done enough.
maybe i am just a wierd asshole that is fixated on details? but i have been around the block a few times and have learned that the devil truely is in the details.
i don't know about you or others, but i know me and my acheing back enough to know full well that i don't want to poor an ounce more concrete than is needed, or conversely an ounce less than what is needed and have to chop it out and do it over again.
btw,,, still waiting for a formula !
(sorry i couldn't help myself)
bob g